Взаємодія компонентів у системах {Ho,Yb,Lu}-Cu-Al та Dy-Ag-Al (діаграми фазових рівноваг, кристалічна структура та фізичні властивості сполук): Авторе

EUeA?ANUeEEE AeA?AEAAIEE OI?AA?NEOAO

?IAI? ?AAIA O?AIEA

NOAEUeIAOIAE*

AIAAeAI IE?INEAAIAE*

OAeE 546.736+669.018.1

Aca?iiae?y eiiiiiaio?a o nenoaiao Ho,Yb,Lu-Cu-Al oa Dy-Ag-Al
(ae?aa?aie oaciaeo ??aiiaaa, e?enoae?/ia no?oeoo?a oa o?ce/i?
aeanoeaino? niieoe)

02.00.01 — iai?aai?/ia o?i?y

Aaoi?aoa?ao aeena?oaoe?? ia caeiaoooy

iaoeiaiai nooiaiy eaiaeeaeaoa o?i?/ieo iaoe

EUeA?A — 1999

Aeena?oaoe??th ? ?oeiien

?iaioa aeeiiaia o Euea?anueeiio aea?aeaaiiio oi?aa?neoao?

?i. ?.O?aiea I?i?noa?noa ina?oe Oe?a?ie

Iaoeiaee ea??aiee aeieoi? o?i?/ieo iaoe, i?ioani?

Eocueia TH??e
Aiaaeaiiae/

caa?aeoth/ee
eaoaae?ith aiae?oe/ii?

o?i??
Euea?anueeiai aea?aeaaiiai

oi?aa?neoaoo
?i. ?.O?aiea

Io?oe?ei? iiiiaioe:

aeieoi? o?i?/ieo iaoe, aeioeaio Iaaethe Aieiaeeie? Aaneeueiae/,
(Euea?anueeee aea?aeaaiee oi?aa?neoao ?i. ?.O?aiea, i?ioani? eaoaae?e
iai?aai?/ii? o?i??)

eaiaeeaeao o?i?/ieo iaoe, aeioeaio ?eoaeue ?iiai Ieoaeeiae/,
(Aea?aeaaiee oi?aa?neoao “Euea?anueea iie?oaoi?ea”, aeioeaio eaoaae?e
caaaeueii? o?i??)

I?ia?aeia onoaiiaa:

Aeiiaoeueeee aea?aeaaiee oi?aa?neoao
.

Caoeno a?aeaoaeaoueny «25» ethoiai 1999 ?. i 17aiae 00 oa. ia can?aeaii?
niaoe?ae?ciaaii? a/aii? ?aaee Ae 35.051.10 c o?i?/ieo iaoe o
Euea?anueeiio aea?aeaaiiio oi?aa?neoao? ?i. ?. O?aiea ca aae?anith
290005, i.Euea?a, Ee?eea ? Iaoiae?y 6, o?i?/iee oaeoeueoao, aoaeeoi??y
?2

C aeena?oaoe??th iiaeia iciaeiieoeny o iaoeia?e a?ae?ioaoe?
Euea?anueeiai aea?aeaaiiai oi?aa?neoaoo ?i. ?.O?aiea (i.Euea?a, aoe.
Ae?aaiiaiiaa 5)

Aaoi?aoa?ao ?ic?neaiee «22» n?/iy 1999 ?ieo

A/aiee nae?aoa?

niaoe?ae?ciaaii? a/aii? ?aaee _____
ss?aiei C.I.

1

Caaaeueia oa?aeoa?enoeea ?iaioe

Aeooaeuei?noue oaie

Aaaeeeaei caaaeaiiyi no/acii? iai?aai?/ii? o?i?? ? neioac ?
aeine?aeaeaiiy aoaeiae niieoe c ye?nii iiaeie o?ceei-o?i?/ieie
aeanoeainoyie, ia?niaeoeaiei aeaea?aeii yeeo ? ?ioa?iaoae?/i? niieoee.
Iaeiie/aiiy aenia?eiaioaeueieo aeaieo i?i oiiae ooai?aiiy, no?oeoo?e ?
aeanoeaino? iiaeo ?ioa?iaoae?ae?a aea? ciiao c?iaeoe i?ioean noai?aiiy
iaoa??ae?a oe?eani?yiiaaiei, a naia aeieeathoue iiaeeeaino? neioacoaaoe
iaoa??aee c caaeaieie eiiieaenaie aeanoeainoae. Iniiaith
oe?eani?yiiaaiiai iiooeo iiaeo iaoa??ae?a ? iiaoaeiaa ae?aa?ai noaio,
ye? a?aeia?aaeathoue aca?iiae?th eiiiiiaio?a o nenoai?, a oaeiae
aeine?aeaeaiiy e?enoae?/ieo no?oeoo? ? o?ceei-o?i?/ieo aeanoeainoae
niieoe.

Ia aeeaey/enue ia oe?iea canoinoaaiiy aethi?i??aeo nieaa?a o no/ani?e
oaoi?oe?, aca?iiae?y Aethi?i?th c ia?ao?aeieie ? ??aee?niicaiaeueieie
iaoaeaie (?CI, Ln) ua ia ? aeinoaoiuei aea/aiith. Ae?aa?aie noaio
iio??eieo nenoai Ln-Cu-Al iiaoaeiaai? ia c? an?ia ?CI ? e?enoae?/i?
no?oeoo?e aaaaoueio oa?ia?ieo aethi?i?ae?a, ye? ooai?ththoueny a oeeo
nenoaiao, ? iaaeine?aeaeai?. Aca?iiae?y eiiiiiaio?a o nenoaiao Ln-Ag-Al
aei oeueiai /ano ? acaaae? ia aea/aiith. Oiio aeine?aeaeaiiy ae?aa?ai
noaio aeacaieo nenoai, anoaiiaeaiiy e?enoae?/ii? no?oeoo?e iiaeo
a?ia?ieo ? oa?ia?ieo aethi?i?ae?a ? aea/aiiy ?o o?ceei-o?i?/ieo
aeanoeainoae ? aeooaeueiith i?iaeaiith iai?aai?/ii? o?i??.

Iaoa ?iaioe.

Iiaoaeiaa oaciaeo ??aiiaaa nenoai Tb, Ho, Yb, Lu-Cu-Al oa Dy-Ag-Al i?e
870 E, neioac ? aecia/aiiy e?enoae?/ieo no?oeoo? iiaeo oa?ia?ieo
aethi?i?ae?a, anoaiiaeaiiy aieeao cai?ie Eoi?oio A?aaiooiii ia oa?aeoa?
aca?iiae?? a nenoaiao oa oei e?enoae?/ii? no?oeoo?e niieoe, ye?
ooai?ththoueny a aeine?aeaeaieo nenoaiao.

Iaoeiaa iiaecia ?iaioe.

Aia?oa iiaoaeiaai? ae?aa?aie oaciaeo ??aiiaaa o nenoaiao Tb, Ho, Yb,
Lu-Cu-Al oa Dy-Ag-Al i?e 870 E. Anoaiiaeai? a?aie/i? neeaaee oaa?aeeo
?ic/ei?a ia iniia? a?ia?ieo niieoe oa iaeano? aiiiaaiiino? oa?ia?ieo
aethi?i?ae?a. Neioaciaaii oa aeine?aeaeaii e?enoae?/io no?oeoo?o 4-o
a?ia?ieo oa 48-e oa?ia?ieo aethi?i?ae?a, no?oeoo?e yeeo iaeaaeaoue aei
15-oe no?oeoo?ieo oei?a. Aeyaeaii /ioe?e iiaeo no?oeoo?ieo oeie.

Iaoeiaa ? i?aeoe/ia oe?ii?noue.

Iaea?aeai? aenia?eiaioaeuei? ?acoeueoaoe aeathoue iiaeeea?noue
ocaaaeueieoe iniaeeaino? aca?iiae?? eiiiiiaio?a o nenoaiao Ln-Cu-Al oa,
ia i?eeeaae? iiaoaeiaaiiai ?cioa?i?/iiai ia?a??co nenoaie Dy-Ag-Al ?
e?enoae?/ii? no?oeoo?e ooai?aieo oa?ia?ieo niieoe, i?iaiicoaaoe

2

aca?iiae?th eiiiiiaio?a o nenoaiao Ln-Ag-Al. ?acoeueoaoe aeine?aeaeaiue
iiaeooue aooe aeei?enoai? ye aeia?aeeiaee iaoa??ae aeey oao?aoe?a o
aaeoc? e?enoaeio?i?? ? iaoa??aeiciaanoaa, iaoaeo?a?? ? o?i?/ii?
oaoiieia??, oa ye aaca aeaieo aeey anoaiiaeaiiy caeiiii??iinoae
ooai?aiiy ?ioa?iaoae?/ieo niieoe ? iiooeo iiaeo iaoa??ae?a.

Iniaenoee aianie aeena?oaioa.

An? aeine?aeaeaiiy aeeiioaaeeny i?e aaciina?aaei?e o/ano? aeena?oaioa.
Aiae?c e?oa?aoo?ieo aeaieo, aenia?eiaioaeuei? ?iaioe ii aeine?aeaeaiith
aca?iiae?? eiiiiiaio?a, neioac iiiie?enoae?a, aeine?aeaeaiiy
i?e?ino?oeoo?e, ?ic?aooiee ii aecia/aiith e?enoae?/ii? no?oeoo?e niieoe,
anoaiiaeaiiy iaae iaeanoae aiiiaaiiino?, iaaiai?aiiy ?acoeueoao?a
i?iaaaeai? aaoi?ii naiino?eii i?ae ea??aieoeoaii iaoeiaiai ea??aieea.
?aioaaiino?oeoo?iee oa ?aioaaiioaciaee aiae?c iaoiaeii ii?ioeo,
iiia?aaei? aeine?aeaeaiiy iiiie?enoae?a i?iaiaeeeenue ia eaoaae??
aiae?oe/ii? o?i?? aaciina?aaeiuei aeena?oaioii.

Ai?iaaoe?y ?iaioe.

Iniiai? ?acoeueoaoe ?iaioe aeeeaaeai? ia I’yo?e Ananithci?e
eiioa?aioe?? c e?enoaeio?i?? ?ioa?iaoae?/ieo niieoe (Euea?a, 1989 ?.),
Ananithci?e eiioa?aioe?? «Aeeaa?aiiu ninoiyiey iaoaeee/aneeo nenoai»
(Caaieai?iae, 1989), XII Oe?a?inuee?e eiioa?aioe?? c iai?aai?/ii? o?i??
(N?ioa?iiieue, 1989), VI eiioa?aioe?? ii e?enoaeeio?i?? iai?aai?/ieo ?
eii?aeeiaoe?eieo niieoe (Euea?a, 1992), Eleventh International
Conference of Solid Compounds of Transition Elements (Wroclaw, 1994), a
oaeiae iaoeiaeo eiioa?aioe?yo Euea?anueeiai aea?aeaaiiai oi?aa?neoaoo
?i. ?. O?aiea (1989, 1991, 1993, 1996).

Ioae?eaoe??.

Ii iaoa??aeao aeena?oaoe?? iioae?eiaaii 16 ?ia?o.

Iniiai? iieiaeaiiy, i?aaenoaaeai? aei caoenoo.

1. ?acoeueoaoe aeine?aeaeaiiy aca?iiae?? eiiiiiaio?a o iio??eieo
nenoaiao Tb, Ho, Yb, Lu-Cu-Al oa Dy-Ag-Al i?e 870 E

2. Anoaiiaeaiiy a?aie/ieo neeaae?a oaa?aeeo ?ic/ei?a ia iniia? a?ia?ieo
oa iaeanoae aiiiaaiiinoae oa?ia?ieo niieoe.

3. ?acoeueoaoe aeine?aeaeaiiy e?enoae?/ieo no?oeoo? a?ia?ieo ? oa?ia?ieo
aethi?i?ae?a aeine?aeaeaieo nenoai oa ?cino?oeoo?ieo niieoe o
nii??aeiaieo nenoaiao Ln-Cu-Al oa Ln-Ag-Al.

4. Aiae?c i?aeaoiiieo a?aeaeaeae oa ?ic?aooiie aoaeoeaieo ?aae?on?a
aoii?a iaeiai ?ici??o a oa?ia?ieo niieoeao aeine?aeaeaieo nenoai.

5. Ia iniia? ci?ie ia?aiao??a aeaiaioa?ieo eii??ie ?cino?oeoo?ieo
oa?ia?ieo niieoe nenoai Ln-Cu,Ag-Al c?iaeai? aeniiaee i?i aaeaioiee noai
aoii?a ?CI. Iaoiaeii aaeni?aoe?eii? LIII niaeo?ineii??

3

?ic?aoiaaia aoaeoeaia aaeaioi?noue aoii?a ?oa?a?th a oa?ia?ieo niieoeao
Yb4(Cu0.26Al0.74)33 oa Yb(Ag0.30Al0.70)3.

6. Aeine?aeaeaia oaiia?aoo?ia caeaaei?noue ieoiiiai aeaeo?iiii?o aeey
niieoe Dy(Ag0.48Al0.52)5 oa Dy2-x(Ag0.53Al0.47)17 a ?ioa?aae? oaiia?aoo?
100-700 E.

Ia’?i ?iaioe.

Aeena?oaoe?y neeaaea?ouecy ?c anooio, oanoe ?icae?e?a, aeniiae?a,
nieneo aeei?enoaieo aeaea?ae ? aeiaeaoe?a. Aeena?oaoe?y aeeeaaeaia ia
141 noi??ioe?, i?noeoue 56 oaaeeoeue, 68 ?enoie?a. Nienie aeei?enoaieo
aeaea?ae ia?aoiao? 134 iacae.

Ci?no aeena?oaoe??

O anooi? iaa?oioiao?oueny aeooaeuei?noue oaie, ?? iaoeiaa iiaecia,
i?aeoe/ia oe?ii?noue ? aecia/athoueny caaaeaiiy aeine?aeaeaiue. O
ae?oaiio ?icae?e? aeeeaaeai? e?oa?aoo?i? aeai? i?i ae?aa?aie noaio
iiaea?eieo nenoai Tb,Dy,Ho,Yb,Lu-Al, Tb,Ho,Yb,Lu-Cu, Dy-Ag, Cu,Ag-Al,
iio??eieo nenoai Ln-Cu-Al, Ln-Cu,Ag-A,Ga,In, e?enoaeia?ao?/i?
oa?aeoa?enoeee a?ia?ieo oa oa?ia?ieo niieoe, a oaeiae i?iaaaeaii iaeyae
no?oeoo?ieo oei?a a?aeiieo oa?ia?ieo niieoe nenoai Ln-Cu,Ag-Al. O
o?aoueiio ?icae?e? aeeeaaeai? aeniiaee c e?oa?aoo?ii? /anoeie oa
caaaeaiiy, ye? iinoaaeai? i?e i?iaaaeaii? aeine?aeaeaiue.

O /aoaa?oiio ?icae?e? iienai? iniiai? iaoiaee aenia?eiaioaeueieo
aeine?aeaeaiue, a oaeiae oa?aeoa?enoeea iaoa??ae?a oa i?eeaae?a, ye?
aeei?enoiaoaaee i?ae /an aeeiiaiiy ?iaioe. C?acee ieaaeee ?c eiiiaeoieo
iaoae?a ianooiii? /enoioe (iania? /anoee iniiaiiai eiiiiiaioo): oa?a?e
(0.995), aeeni?ic?e (0.993), aieuei?e (0.993), a?a?e (0.995), ooe?e
(0.993), ?oa?a?e (0.995) ethoaoe?e (0.995), i?aeue aeaeo?ie?oe/ia
(0.9997), n??aei (0.9995), aethi?i?e (0.9999) a oaeiae ii?ioie i?ae?
aeaeo?ie?oe/ii? (0.9999), iiia?aaeiuei i/euaii? a?ae aeii?oie ieneae?a
oa?i?/iei a?aeiiaeaiiy a aoiinoa?? aenooaiiai aiaeith. ?io? eaioaii?aee
iaee /enoioo ia iaioa 0.995 ian./anoee iniiaiiai eiiiiiaioo. Aeii?oeaie
a ??aee?niicaiaeueieo iaoaeao ?, a iniiaiiio, ?io? eaioaii?aee. C?acee
aeey aeine?aeaeaiiy oaciaeo ??aiiaaa ieaaeee ?c noi?o? aeo?aeieo
eiiiiiaio?a a aoiinoa?? ?ia?oiiai aaco (i/euaiiai a?aiio) a
aeaeo?iaeoaia?e ia/? c aieueo?aiiaei aeaeo?iaeii ia i?aeiiio
aiaeiioieiaeaeoaaiiio iiae?. Aeo?aei? iaoaee iiae??aithaaee o aeaeyae?
no?oaeee, aaaeeee ia oaoi?/ieo oa?acao c oi/i?noth aei 0.01 a ?
nieaaeyee a aeaeo?iaeoaia?e ia/? i?e iai?oc? 30 A oa nee? no?oio 200-300
A. Aeey ?aioaaiioaciaiai oa ?aioaaiino?oeoo?iiai aiae?c?a neioacoaaee
nieaae ianith 1-2 a, aeey neioaco iiiie?enoae?a iano ceeoea ca?eueooaaee
aei 5-10 a. C?acee nenoaie Yb-Cu-Al iaea?aeoaaee c ii?ioe?a aeo?aeieo
eiiiiiaio?a, ci?aniaaieo o noaeuei?e i?an-oi?i? i?ae oeneii 4.9 IIa,
aea?/? ia?aieaaeyth/e oeooo a aeaeo?iaeoaia?e ia/?. Aeey aiiiaai?caoe??
nieaae caiathaaee o

4

aaeooiiaai? eaa?oeia? aiioee ? a?aeiaethaaee a iooaeueieo ia/ao c
aaoiiaoe/iei ?aaoethaaiiyi oaiia?aoo?e i?e 870 E ia iaioa 600 aiaeei
(c?acee c ai?noii a?eueoa 0.50 iie./ano. Eoi?oio (A?aaiooio) ? 0.40
iie./ano. ?CI aiiiaai?coaaee iiiaae 1000 aiaeei). Ia ?icaeaath/e aiioee,
c?acee aa?ooaaee a oieiaei?e aiae?. Aiioee c? nieaaaie nenoaie Yb-Cu-Al
(aeey ciaioaiiy aeia?iaoaaiiy ?oa?a?th) caiiaithaaee i/euaiei a?aiiii
i?e oeneo ~0.08 IIa.

Oacia? ??aiiaaae a nenoaiao aea/aee ii aeaaa?a?aiao (eaia?e ?EAe-57,
Cr-K aei?ii?ithaaiiy) oa aeeo?aeoia?aiao (ii?ioeiaee aeeo?aeoiiao?
Ae?II-3I, Cu-K aei?ii?ithaaiiy); i?e?ino?oeoo?o aeine?aeaeoaaee
a?coaeueii oa oioia?ao?/iei iaoiaeii ia iaoaeia?ao?/iiio i?e?ineii?
I?I-7. E?enoae?/i? no?oeoo?e niieoe aeine?aeaeoaaee iaoiaeaie
iiiie?enoaeo oa ii?ioeo. Iiia?aaei? aeine?aeaeaiiy iiiie?enoaeo
i?iaiaeeee iaoiaeaie Eaoa, iaa?oaiiy (eaia?e ?EA-86, Mo-K, Cu-K
aei?ii?ithaaiiy), oioia?aooaaiiy iaa?iaii? a?aoee (EOI?-4A, Mo-K
aei?ii?ithaaiiy) oa ?icai?oee oa?iaeo e?i?e iaoiaeii Aaenaiaa?aa
(aii?iiao? ?AIN-2, Cu-K aei?ii?ithaaiiy). Aei??thaaiiy ?ioaineaiinoae
a?aeaeoue iiiie?enoae?a i?iaiaeeee ia aaoi-iaoe/ieo iiiie?enoaeueieo
aeeo?aeoiiao?ao «SYNTEX P21», «SIEMENS P2», «AeA?*-4» (Mo-K
aei?ii?ithaaiiy). Aeine?aeaeaiiy iaoiaeii ii?ioeo cae?enith-aaee ia
aeeo?aeoiiao?ao Ae?II-2.0, Ae?II-3.0, Ae?II-3I, Ae?II-4, HZG-4A (Mo-K,
Cu-K, Fe-K aei?ii?ithaaiiy) c aeei?enoaiiyi aeeoa?aioe?eiiai oa
?ioaa?aeueiiai (iiaiii?io?eueiee iaoiae ??ooaeueaea) niinia?a ooi/iaiue.
?ic?aooiee i?iaiaeeee ia AII NI-4, IE «Aeaeo?ii?ea 0585» oa IBM PC/AT ca
eiiieaenaie i?ia?ai no?oeoo?iiai aiae?co XTLSM oa CSD.

I’yoee ?icae?e i?noeoue ?acoeueoaoe aeine?aeaeaiue ae?aa?ai noaio
nenoai Tb,Ho,Yb,Lu-Cu-Al oa Dy-Ag-Al i?e 870 E; anoaiiaeaiiy a?aie/ieo
neeaae?a oaa?aeeo ?ic/ei?a ia iniia? a?ia?ieo niieoe oa iaae iaeanoae
aiiiaaiiino? oa?ia?ieo aethi?i?ae?a; aea/aiiy e?enoae?/ii? no?oeoo?e
iiaeo a?ia?ieo oa oa?ia?ieo niieoe.

Ae?aa?aie oaciaeo ??aiiaaa

Nenoaia Tb-Cu-Al aeine?aeaeaia ia 75 c?aceao. Iiaoaeiaaii ?cioa?i?/iee
ia?a??c ae?aa?aie noaio i?e 870 E (?en.1, a). Aeyaeaii ?ic/eii?noue
o?aoueiai eiiiiiaioo a a?ia?ieo niieoeao TbCu5, TbCu2, TbCu i TbAl2,
a?aie/i? neeaaee yeeo iienothoueny oi?ioeaie Tb(Cu0.56Al0.44)5,
Tb(Cu0.93Al0.07)2, TbCu0.5Al0.5, Tb(Cu0.20Al0.80)2 a?aeiia?aeii. O
nenoai? ooai?ththoueny o?noue oa?ia?ieo niieoe. Aia?oa neioaciaaii ?
anoaiiaeaii .

5

e?enoae?/io no?oeoo?o o?ueio iiaeo oa?ia?ieo aethi?i?ae?a:
Tb(Cu0.58Al0.42)11, Tb3(Cu0.11Al0.89)11, Tb(Cu0.30Al0.70)3.

Nenoaia Ho-Cu-Al aeine?aeaeaia ia 90 c?aceao. Iiaoaeiaaii ?cioa?i?/iee
ia?a??c ae?aa?aie noaio i?e 870 E (?en.1, a). ?ic/eii?noue o?aoueiai
eiiiiiaioo niinoa??aa?oueny o a?ia?ieo niieoeao HoCu2, HoCu i HoAl2, ?o
a?aie/i? neeaaee iienothoueny oi?ioeaie Ho(Cu0.91Al0.09)2,
HoCu0.30Al0.70, Ho(Cu0.25Al0.75)2 a?aeiia?aeii. O nenoai? ooai?th?oueny
n?i oa?ia?ieo niieoe, aia?oa neioaciaaii oa aeine?aeaeaii e?enoae?/io
no?oeoo?o o?ueio iiaeo oa?ia?ieo aethi?i?ae?a Ho6(Cu0.70Al0.30)23,
Ho(Cu0.30Al0.70)3, Ho(Cu0.25Al0.75)4.

Nenoaia Yb-Cu-Al aeine?aeaeaia ia 120 c?aceao, iiaoaeiaaii ?cioa?i?/iee
ia?a??c ae?aa?aie noaio i?e 870 E (?en. 2, a). Aeine?aeaeaia
?ic/eii?noue o?aoueiai eiiiiiaioo a a?ia?ieo niieoeao YbCu5 i YbAl2,
a?aie/i? neeaaee yeeo iienothoueny oi?ioeaie Yb(Cu0.58Al0.42)5,
Yb(Cu0.25Al0.75)2 a?aeiia?aeii. O nenoai? ooai?th?oueny n?i oa?ia?ieo
niieoe, aeey i’yoe c yeeo aia?oa aeine?aeaeaii e?enoae?/io no?oeoo?o:
Yb2(Cu0.51-0.46Al0.49-0.54)17, Yb4(Cu0.26Al0.74)33, Yb(Cu0.85Al0.15)6,
Yb6(Cu0.70Al0.30)23, Yb(Cu0.30Al0.70)3.

Nenoaia Lu-Cu-Al aeine?aeaeaia ia 125 c?aceao, iiaoaeiaaii ?cioa?i?/iee
ia?a??c ae?aa?aie noaio i?e 870 E (?en. 2, a). O?ao?e eiiiiiaio
?ic/eiy?oueny o a?ia?ieo niieoeao LuCu2, LuCu oa LuAl2; a?aie/i? neeaaee
oaa?aeeo ?ic/ei?a iienothoueny oi?ioeaie Lu(Cu0.93Al0.07)2,
LuCu0.45Al0.45, Lu(Cu0.07Al0.93)2 a?aeiia?aeii. O nenoai? ooai?th?oueny
o?noue oa?ia?ieo niieoe, /ioe?e c ieo neioaciaai? aia?oa ? aeine?aeaeaii
?o e?enoae?/io no?oeoo?o: Lu2(Cu0.60-0.54Al0.40-0.46)17,
Lu(Cu0.76-0.52Al0.24-0.48)5, Lu6(Cu0.70Al0.30)23, Lu(Cu0.30Al0.70)3.

Nenoaia Dy-Ag-Al aeine?aeaeaia ia 95 c?aceao, iiaoaeiaaii ?cioa?i?/-iee
ia?a??c ae?aa?aie noaio i?e 870 E (?en. 3). Aeine?aeaeaii ?ic/eii?noue
o?aoueiai eiiiiiaioo o a?ia?ieo niieoeao DyAg i DyAl2; a?aie/i? neeaaee
oaa?aeeo ?ic/ei?a iienothoueny oi?ioeaie DyAg0.58Al0.42 ?
Dy(Ag0.17Al0.83)2 a?aeiia?aeii. O nenoai? aia?oa aeyaeaii o?noue
oa?ia?ieo niieoe ? aeine?aeaeaia ?o e?enoae?/ia no?oeoo?a:
Dy(Ag0.52-0.46Al0.48-0.54)12, Dy1.74(Ag0.47-0.53Al0.53-0.47)17,
Dy4(Ag0.26Al0.74)33, Dy(Ag0.47-0.58Al0.53-0.42)5, Dy(Ag0.14Al0.86)4,
Dy(Ag0.70Al0.30)2.

6

?en. 1. ?cioa?i?/i? ia?a??ce ae?aa?ai oaciaeo ??aiiaaa nenoai

Tb-Cu-Al (a) oa Ho-Cu-Al (a) i?e 870 E

E?enoae?/i? no?oeoo?e oa?ia?ieo niieoe.

A ?acoeueoao? i?iaaaeaii? ?iaioe aea/aia e?enoae?/ia no?oeoo?a an?o
oa?ia?ieo niieoe, ye? ooai?ththoueny o aeine?aeaeaieo nenoaiao. Aia?oa
aeine?aeaeaia e?enoae?/ia no?oeoo?a 48-e oa?ia?ieo ? 4-ueio a?ia?ieo
aethi?i?ae?a, ye? iaeaaeaoue aei 15-oe no?oeoo?ieo oei?a. Na?aae
?icoeo?iaaieo

7

no?oeoo? aea? iaeaaeaoue aei iiaeo no?oeoo?ieo oei?a ? aea? —
aeecueeinii??aeiai? c ?ai?oa aeine?aeaeaieie.

?en. 2. ?cioa?i?/i? ia?a??ce ae?aa?ai oaciaeo ??aiiaaa nenoai

Yb-Cu-Al (a) oa Lu-Cu-Al (a) i?e 870 E

8

?en. 3. ?cioa?i?/iee ia?a??c ae?aa?aie oaciaeo ??aiiaaa nenoaie

Dy-Ag-Al i?e 870 E

E?enoae?/i? no?oeoo?e niieoe, ye? iaeaaeaoue aei iiaeo no?oeoo?ieo
oei?a.

No?oeoo?iee oei Yb4(Cu0.26Al0.74)33 (iaoiae iiiie?enoaeo, 634
iacaeaaeieo a?aeaeoue): i?. a?. I4/mmm, Z=2, a=0.8565(2), c=1.6255(2)
ii, RI=0.041 (?en. 4). Eii?aeeiaoe aoii?a ? ?o aea?aaeaioi? oaieia?
ia?aiao?e (B102 ii2): 4Yb1: 4(c) 1/2 0 1/2, B=0.54(2); 4Yb2: 4(d) 0 0 z,
z=0.71898(6), B=0.17(1); X1(1.56(6)Cu+0.42(6)Al): 2(b) 0 0 1/2,
B=0.57(7); X2(8Al): 8(f) 1/4 1/4 3/4, B=0.49(7);
X3(3.35(3)Cu+4.65(3)Al): 8(h) x x 0, x=0.1515(4), B=0.96(5); X4(16Al):
16(n) x 0 z, x=0.2381(5), z=0.1412(2), B=0.69(7);
X5(11.8(2)Cu+4.2(2)Al): 16(n) x=0.3522(2), z=0.3194)1), B=0.56(3);
X6(16Al): 16(m) x x z, x=0.1766(4), z=0.4138(2), B=0.72(5).

No?oeoo?iee oei Tb(Cu0.58Al0.42)11 (iaoiae ii?ioeo): i?.a?. Fddd, Z=8,
a=1.42792(6), b=1.48916(6), c=0.65644(2) ii, RI=0.073, RP=0.128 (?en.
5). Eii?aeeiaoe aoii?a oa ?o ?cio?iii? oaieia? ia?aiao?e (B102 ii2):
8Tb: 8(b) 1/8 1/8 5/8, B=0.65(6); X1(8Al): 8(a) 1/8 1/8 1/8, B=0.70(9);
X2(16Cu): 16(c) 0 0 0, B=0.70(8); X3(32Cu): 32(h) x y z, x=0.2876(2),
y=0.0867(2), z=0.9335(5), B=0.86(8); X4(3.2(3)Cu+28.8(3)Al): 32(h)
x=0.3297(4), y=0.0373(5), z=0.5769(9), B=0.74(9).

No?oeoo?iee oei Dy2-xAgy(Ag0.44Al0.56)17, x=0.26, y=0.25 (iaoiae
iiiie?enoaeo, 418 iacaeaaeieo a?aeaeoue): i?.a?. P63/mmc, Z=2,
a=0.9285(1), c=0.9098(2) ii, RI=0.038 (?en. 6). Eii?aeeiaoe aoii?a oa ?o
aea?aaeaioi?

9

oaieia? ia?aiao?e (B102 ii2): 1.47(1)Dy: 2(b) 0 0 1/4, B=0.64(4); 2Dy:
2(d) 1/3 2/3 3/4, B=0.63(3); 0.44(2)Ag: 4(e) 0 0 z, z=0.102(2),
B=1.2(3); X1(2.40(4)Ag+1.60(4)Al): 4(f) 1/3 2/3 z, z=0.0979(3),
B=0.99(5); X2(1.23(5)Ag+4.77(5)Al): 6(g) 1/2 0 0, B=0.85(9);
X3(6.00(8)Ag+6.00(8)Al): 12(j) x y 1/4, x=0.3298(3), y=0.3630(3),
B=1.25(6); X4(6.00(8)Ag+6.00(8)Al): 12(k) x 2x z, x=0.1637(2),
z=0.5236(2), B=0.90(4).

?en. 4. I?iaeoe?y no?oeoo?e niieoee Yb4(Cu0.26Al0.74)33 ia ieiueio

XY (a) ? eii?aeeiaoe?ei? iiiaia?aiieee aoii?a: [Yb1X20] (a),

[Yb2X16] (a), [X1X8] (a), [X2Yb2X10] (ae),
[X3Yb2X8] (a),

[X4Yb3X11] (?), [X5Yb2X10] (ae), [X6Yb3X10] (c).

?en. 5. I?iaeoe?y no?oeoo?e niieoee Tb(Cu0.58Al0.42)11 ia ieiueio XY

(a) oa eii?aeeiaoe?ei? iiiaia?aiieee aoii?a:
[TbX22] (a),

[X1Tb2X12] (a), [X2Tb2X10] (a), [X3Tb2X10] (ae),
[X4Tb2X10] (e)

(ioieoe?iith e?i??th aeae?eaia i?aeeii??ea no?oeoo?e
BaCd11).

10

?en. 6. I?iaeoe?y no?oeoo?e niieoee Dy1.74Ag0.25(Ag0.44Al0.56)17 ia

ieiueio XY (a) ? eii?aeeiaoe?ei?
iiiaia?aiieee aoii?a:

[Dy1X20] (a), [Dy2X20] (a), [X1DyX13] (a),
[X2Dy2X10] (ae),

[X3Dy2X11] (a), [X4Dy3X9] (?) ? [AgDyX7] (ae).

No?oeoo?iee oei DyAg2.3Al2.7 (iaoiae iiiie?enoaeo, 575 iacaeaaeieo
a?aeaeoue): i?. a?. P63/mmc, Z=6, a=0.9132(2), c=0.9414(8) ii, RI=0.053
(?en. 7). Eii?aeeiaoe aoii?a oa ?o aea?aaeaioi? oaieia? ia?aiao?e (B102
ii2): 6Dy: 6(h) x 2x 1/4, x=0.19583(6), B=0.62(2), X1(4Al): 4(f) 1/3 2/3
z, z=0.0132(11), B=0.81(9); X2(3.60(4)Ag+2.40(4)Al): 6(g) 1/2 0 0,
B=0.98(4); X3(0.78(4)Ag+5.22(4)Al): 6(h) x 2x 1/4, x=0.5679(3),
B=0.75(10); X4(8.81(7)Ag+3.19(7)Al): 12(k) x 2x z, x=0.8426(1),
z=0.0921(2), B=0.97(3); X5(1.08(8)Al): 2(a) 0 0 0, B=2.4(4);
X6(0.54(2)Ag): 2(b) 0 0 1/4, B=1.7(2); X7(0.66(2)Ag): 4(e) 0 0 z,
z=0.287(2), B=0.78(14).

?en. 7. I?iaeoe?y no?oeoo?e niieoee DyAg2.3Al2.7 ia ieiueio XY (a)

eii?aeeiaoe?ei? iiia?aiieee aoii?a:
[DyDy2X14] (a),

[X1Dy3X9] (a), [X2Dy4X8] (a), [X3Dy2X10]
(ae), [X4Dy3X9] (a),

[X5X6] (?), [X6Dy3X6] (ae), [X7Dy3X6] (c).

11

E?enoae?/i? no?oeoo?e niieoe, ye? iaeaaeaoue aei a?aeiieo no?oeoo?ieo
oei?a.

?io? oa?ia?i? niieoee, aeey yeeo iaie anoaiiaeai? e?enoae?/i? no?oeoo?e
iaeaaeaoue aei ?ai?oa a?aeiieo no?oeoo?ieo oei?a, ?o e?enoaeio?i?/i?
oa?aeoa?enoeee iaaaaeai? a oaaeeoe? 1.

Oaaeeoey 1 — E?enoaeio?i?/i? oa?aeoa?enoeee iiaeo niieoe a?aeiieo

no?oeoo?ieo oei?a o nenoaiao Ln-Cu, Ag-Al

NiieoeaIANOIa?aiao?e a?aoee, ii
a b
c123456Tm3Al2P42/mnmZr3Al20.8094(4)0.7452(3)LuAlPbcmDyAl0.5798(3)1.1124(
5)0.5520(2)Lu3Al2P42/mnmZr3Al20.8051(5)0.7363(5)Lu2AlPbamPbCl20.6456(3)0
.4969(2)0.9184(5)Tm2(Cu0.60Al0.40)17picscalex70010009000003b600000003001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.
8735(3)1.2738(5)Yb2(Cu0.56Al0.44)17picscalex70010009000003b6000000030017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.8
6907(4)1.26979(7)Lu2(Cu0.60Al0.40)17picscalex70010009000003b600000003001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.
8680(3)1.2695(7)Yb(Cu0.85Al0.15)6I4/mmmYbMo2Al40.63866(3)0.49266(4)Lu(Cu
0.70Al0.30)5P6/mmmCaCu50.5082(2)0.4135(2)Tb3(Cu0.11Al0.89)11ImmmLa3Al110
.42279(2)1.25247(5)0.99378(4)Dy(Cu0.25Al0.75)4Immmp-CeNi2+xSb2-x0.4205(4
)0.4143(4)0.9813(8)Ho(Cu0.25Al0.75)4Immmp-CeNi2+xSb2-x0.42016(5)0.41331(
7)0.98176(9)Tm(Cu0.25Al0.75)4Immmp-CeNi2+xSb2-x0.4176(3)0.4093(3)0.9775(
6)Dy6(Cu0.70Al0.30)23Fm3mTh6Mn231.2275(4)Ho6(Cu0.70Al0.30)23Fm3mTh6Mn231
.2258(3)Er6(Cu0.70Al0.30)23Fm3mTh6Mn231.2240(3)Tm6(Cu0.70Al0.30)23Fm3mTh
6Mn231.2215(2)Yb6(Cu0.30Al0.70)23Fm3mTh6Mn231.2234(4)Lu6(Cu0.70Al0.30)23
Fm3mTh6Mn231.2198(1)Y(Cu0.30Al0.70)3picscalex70010009000003b600000003001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.54
79(1)2.5393(6)Tb(Cu0.30Al0.70)3picscalex70010009000003b60000000300170000
000000050000000902000000000400000002010100050000000102ffffff00040000002e
01180005000000310201000000050000000b0200000000050000000c02c001c003120000
0026060f001a00ffffffff000010000000c0ffffffccffffff800300008c0100000b0000
0026060f000c004d617468547970650000300009000000fa020000010000000000000022
00040000002d010000050000001402430066010500000013024300260217000000fb0280
fe0000000000009001000000cc0402001054696d6573204e657720526f6d616e20437972
00cc68040000002d01010008000000320a60013e02010000006d0008000000320a600163
0101000000330008000000320a60012e000100000052000a00000026060f000a00ffffff
ff01000000000010000000fb021000070000000000bc02000000cc010202225379737465
6d00cc040000002d01020004000000f001010003000000000000000000PuNi30.5475(2)
2.5373(9)Dy(Cu0.30Al0.70)3picscalex70010009000003b6000000030017000000000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.5457(1)2.531
7(7)Ho(Cu0.30Al0.70)3picscalex70010009000003b600000003001700000000000500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.5451(1)2.5306(9)E
r(Cu0.30Al0.70)3picscalex70010009000003b60000000300170000000000050000000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.5421(1)2.5299(7)Tm(Cu0
.30Al0.70)3picscalex70010009000003b6000000030017000000000005000000090200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.5402(1)2.5240(7)Yb(Cu0.30Al
0.70)3picscalex70010009000003b600000003001700000000000500000009020000000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.5471(1)2.5358(9)Lu(Cu0.30Al0.70)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.5347(1)2.5196(8)Y(Ag0.47Al0.53)12I4/m
mmThMn120.9139(2)0.5434(2)Dy(Ag0.47Al0.53)12I4/mmmThMn120.9143(1)0.5434(
2)Ho(Ag0.47Al0.53)12I4/mmmThMn120.9143(1)0.5432(3)Gd4(Ag0.26Al0.74)33I4/
mmmYb4(Cu0.26Al0.74)330.8817(8)1.6819(8)Tb4(Ag0.26Al0.74)33I4/mmmYb4(Cu0
.26Al0.74)330.8804(2)1.6810(8)Dy4(Ag0.26Al0.74)33I4/mmmYb4(Cu0.26Al0.74)
330.87933(3)1.6800(1)12

I?iaeiaaeaiiy oaaeeoe? 1.

123456Ho4(Ag0.26Al0.74)33I4/mmmYb4(Cu0.26Al0.74)330.8774(1)1.6705(5)Er4(
Ag0.26Al0.74)33I4/mmmYb4(Cu0.26Al0.74)330.8772(2)1.6691(6)Tm4(Ag0.26Al0.
74)33I4/mmmYb4(Cu0.26Al0.74)330.8768(2)1.6599(6)Yb4(Ag0.26Al0.74)33I4/mm
mYb4(Cu0.26Al0.74)331.6710(7)1.132(3)Y1.7(Ag0.44Al0.56)17P63/mmcTh2Ni170
.9286(1)0.9077(2)Gd1.7(Ag0.44Al0.56)17P63/mmcTh2Ni170.9299(1)0.9082(2)Tb
1.7(Ag0.44Al0.56)17P63/mmcTh2Ni170.9287(1)0.9078(2)Ho1.7(Ag0.44Al0.56)17
P63/mmcTh2Ni170.9275(1)0.9073(2)Er1.7(Ag0.44Al0.56)17P63/mmcTh2Ni170.926
9(1)0.9071(2)Tm1.7(Ag0.44Al0.56)17P63/mmcTh2Ni170.9265(1)0.9069(2)Y(Ag0.
25Al0.75)4Immmp-CeNi2+xSb2-x0.4295(3)0.4184(2)1.0039(6)Gd(Ag0.25Al0.75)4
Immmp-CeNi2+xSb2-x0.4321(2)0.4221(2)1.0021(5)Tb(Ag0.25Al0.75)4Immmp-CeNi
2+xSb2-x0.4304(2)0.4189(2)1.0003(5)Dy(Ag0.16Al0.84)4Immmp-CeNi2+xSb2-x0.
4296(1)0.4179(1)0.9995(3)Dy(Ag0.71Al0.29)2ImmaCeCu20.4549(1)0.7113(1)0.7
871(2)

Oinoee ?icae?e i?enay/aii iaaiai?aiith iaea?aeaieo ?acoeueoao?a.
?icaeyiooi aca?iiae?th eiiiiiaio?a o nenoaiao Ln-Cu-Al i Dy-Ag-Al, i?e
oeueiio aeyaeaii ?yae ni?eueieo iniaeeainoae, cie?aia:

— ooai?aiiy oaa?aeeo ?ic/ei?a ia iniia? a?ia?ieo oa oa?ia?ieo niieoe,
ca’ycaieo ?c noaoenoe/iei cai?uaiiyi aoii?a Eoi?oio (A?aaiooio)
Aethi?i??i;

— i?eiaeaaei?noth no?oeoo?e oa?ia?ieo aethi?i?ae?a aei no?oeoo?ieo oei?a
c ?einaaae?e/iith eii?aeeiaoe??th aoii?a iaioiai ?ici??o,
aeecueeinii-??aeiaieo ?c no?oeoo?ith oeio CaCu5;

Ii??aiyiiy aca?iiae?? eiiiiiaio?a a nenoaiao Ln-Cu-Al i Ln-Cu-B
iieacaei, ui oe? nenoaie cia/ii a?ae??ciythoueny. Oea ca’ycaii c
e?enoaeio?i?/iith a?aei?ii?noth aoii?a Ai?o oa Aethi?i?th (aaee/eie
?oi?o aoiiieo ?aae?on?a oa a?aeiinii? aeaeo?iiaaaoeaiino?). A?aeiia?aei?
iio??ei? nenoaie, eiiiiiaioii yeeo ? Aae?e, a?eueo iiae?ai? aei nenoai
Ln-Cu-Al. Oea i?iyaey?oueny a ooai?aii? ?cino?oeoo?ieo niieoe, ye?
iaeaaeaoue aei no?oeoo?ieo oei?a, aeecueeinii??aeiaieo ?c no?oeoo?ith
oeio CaCu5 (ThMn12, Th2Zn17, Th2Ni17, PuNi3) ? ooai?aiiyi oaa?aeeo
?ic/ei?a ia iniia? a?ia?ieo oa oa?ia?ieo niieoe.

I?iaaaeaii aiae?c i?ioyaeiino? oaa?aeeo ?ic/ei?a ia iniia? a?ia?ieo oa
oa?ia?ieo niieoe. Anoaiiaeaii, ui o nenoaiao Ln-Cu-Al ?ic/eii?noue
o?aoueiai eiiiiiaioo a a?ia?ieo niieoeao LnCu5 (no?.oeio CaCu5), LnAl2
(no?.oeio MgCu2) i LnCu (no?. oeio CsCl) ? iaeaea iaeiaeiaith ?
noaiiaeoue 0.45-0.50, 0.25-0.30 ? 0.20 iie. /ano. a?aeiia?aeii.

13

Aiae?c e?euee?niiai neeaaeo oa?ia?ieo niieoe aeine?aeaeaieo nenoai
iieaco?, ui aiie ooai?ththoueny a iaeano? aei 0.33 iie./ano. ?CI.
Iaea?eueo aaaao? Aethi?i??i oa Eoi?oiii oa?ia?i? aethi?i?aee
ooai?ththoueny a nenoai? Yb-Cu-Al: Yb4(Cu0.26Al0.74)33 (0.66 iie./ano.
Al) oa Yb(Cu0.85Al0.15)6 (0.73 iie. /ano. Cu).

No?oeoo?e oa?ia?ieo niieoe, ye? ooai?ththoueny o aeine?aeaeaieo
nenoaiao iaeaaeaoue aei 15-oe no?oeoo?ieo oei?a, aeaye? c ieo
nii??aeiai? ?c no?oeoo?iei oeiii CaCu5, yeee, a naith /a?ao, iiaeia
?icaeyaeaoe iio?aeiei a?ae no?oeoo?, iiaoaeiaaieo ca i?eioeeiii u?eueieo
oiaeiaie (?en.8). Oe? an? no?oeoo?e iaeaaeaoue aei oei?a c
?einaaae?e/iith eii?aeeiaoe??th aoii?a iaioiai ?ici??o ?
oa?aeoa?ecothoueny aaenaaiiaeueieie oa aaenaaii-o?eeooieie (Eaaiia)
n?oeaie. ?io? no?oeoo?i? oeie aeine?aeaeaieo niieoe, oi/a ? ia
i?iyaeythoue aaciina?aaeiuei? nii??aeiaiino? ?c no?oeoo?ith oeio CaCu5,
i?ioa oaeiae oa?aeoa?ecothoueny ?ici?uaiiyi aoii?a iaeiai ?ici??o o
aeaeyae? n?oie: o?eeooieo, eaaae?aoieo, iaioaaiiaeueieo oa ??ciiiai?oieo
?o eiia?iaoe?yo.

?en. 8. Noaia nii??aeiaiino? no?oeoo?ieo oei?a oa?ia?ieo niieoe

nenoai Ln-Cu,Ag-Al

I?iaaaeaii aiae?c i?aeaoiiieo a?aeaeaeae a nooeoo?ao oa?ia?ieo
aethi?i?ae?a oa aecia/ai? aoaeoeai? aoiii? ?aae?one aoii?a Eoi?oio oa
Aethi?i?th aeey E* 12, ye? neeaaeathoue 0.126 oa 0.138 ii a?aeiia?aeii.
Aeine?aeaeaii LIII niaeo?e iiaeeiaiiy aoii?a Yb a niieoeao
Yb4(Cu0.26Al0.74)33 oa Yb(Cu0.30Al0.70)3 (?en. 9). Anoaiiaeaii, ui aoiie
?oa?a?th a niieooe? Yb4(Cu0.26Al0.74)33 ia?aaoaathoue o noai? Yb+3, a a
niieooe? Yb(Cu0.30Al0.70)3 — o aaeaioiiianoaa?eueiiio noai? Yb+2.28.

Aeine?aeaeaii caeaaei?noue ci?ie aeaeo?iiii?o a?ae oaiia?aoo?e aeey
oa?ia?ieo niieoe Dy(Ag0.48Al0.52)5 oa Dy2-x(Ag0.53Al0.47)17 a ?ioa?aae?
oaiia?aoo? 100-700 E (?en. 10). Aaee/eia ieoiiiai iii?o aeine?aeaeaieo
aethi?i?ae?a ia? ii?yaeie 10-6 Iii, oiaoi aeecueea aei iii?o /enoeo
iaoae?a. Oaiia?aoo?iee eiao?oe??io aeaeo?iiii?o neeaaea? ~1.610-6 E-1.

14

?en. 10. Caeaaei?noue (O) niieoe Dy(Ag0.48Al0.52)5 (a) oa
Dy2-x(Ag0.53Al0.47)17 (a)

Aeniiaee

1. Aeine?aeaeaii aca?iiae?th eiiiiiaio?a o nenoaiao Tb,Ho,Lu,Yb-Cu-Al
oa Dy-Ag-Al oa iiaoaeiaaii ae?aa?aie oaciaeo ??aiiaaa i?e 870 E.

2. Anoaiiaeai? a?aie/i? neeaaee oaa?aeeo ?ic/ei?a ia iniia? a?ia?ieo
niieoe LnCu5, LnCu2, LnCu, LnAl2 oa iaeano? aiiiaaiiino? oa?ia?ieo
aethi?i?ae?a LnCu12-xAlx, Ln2Cu17-xAlx, LnCu5-xAlx, Dy1.7Ag17-xAlx ?
DyAg5-xAlx.

3. Aia?oa neioaciaaii oa aeine?aeaeaii e?enoae?/io no?oeoo?o iiaeo
a?ia?ieo niieoe LuAl, Lu3Al2, Tm3Al2, Lu2Al, no?oeoo?e yeeo iaeaaeaoue
aei no?oeoo?ieo oei?a DyAl, Zr3Al2, PbCl2 a?aeiia?aeii.

4. Aia?oa aeyaeaii oa anoaiiaeaii e?enoae?/io no?oeoo?o aeaio oa?ia?ieo
aethi?i?ae?a, no?oeoo?a yeeo iaeaaeeoue aei iiaeo oei?a:
Yb4(Cu0.26Al0.74)33 (i?. a?. I4/mmm, Z=2, a=0.8565, c=1.6255 ii) oa
Tb(Cu0.58Al0.42)11 (i?.a?. Fddd a=1.42792, b=1.48016, c=0.65644 ii).
Iaea?aeai? ?cino?oeoo?i? niieoee Ln4(Ag0.26Al0.74)33 (Ln — Gd-Tm).

5. Iaoiaeaie aeine?aeaeaiiy iiiie?enoaeo anoaiiaeaii, ui niieoee
Dy2-xAgy(Ag0.44Al0.56)17, x=0.26, y=0.25 (i?.a?. P63/mmc, Z=2, a=0.9285,
c=0.9098 ii) oa DyAg2.3Al2.7 (i?.a?. P63/mmc, Z=6, a=0.9132, c=0.9414
ii) iaeaaeaoue aei no?oeoo?ieo oei?a, nii??aeiaieo ?c no?oeoo?aie oeio
Th2Ni17 oa Sc3Ni11Si4 a?aeiia?aeii. Iaea?aeai? ?cino?oeoo?i? niieoee
Ln2-xAgy(Ag0.44Al0.56)17 (Ln-Y, Gd-Tm).

6. Aia?oa iaea?aeaii oa anoaiiaeaii e?enoae?/io no?oeoo?o 48-oe iiaeo
oa?ia?ieo aethi?i?ae?a, ye? iaeaaeaoue aei 9-oe a?aeiieo no?oeoo?ieo
oei?a: ThMn12, YbMo2Al4, Th2Zn17, CaCu5, Th6Mn23, PuNi3, La3Al11,
p-CeNi2+xSb2-x, CeCu2.

7. I?iaaaeaii aiae?c no?oeoo?ieo oei?a oa?ia?ieo niieoe, ye?
ooai?ththoueny a aeine?aeaeaieo nenoaiao. No?oeoo?i? oeie ThMn12,
Th2Zn17, Th2Ni17, PuNi3 ? aeecueeinii??aeiai? c? no?oeoo?iei oeiii CaCu5
? aeey oeeo no?oeoo? oa?aeoa?iith iciaeith ? ?ici?uaiiy aoii?a iaeiai
?ici??o (Cu, Ag, Al) a o?eeooieo, aaenaaiiaeueieo oa aaenaaii-o?eeooieo
n?oeao (n?oeao Eaaiia). A no?oeoo?ao ?ioeo niieoe aoiie O-eiiiiiaioo
ooai?ththoue n?oee a?eueo neeaaeii? aoaeiae.

8. Ia iniia? aiae?co i?aeaoiiieo a?aeaeaeae a no?oeoo?ao aeine?aeaeaieo
niieoe aecia/ai? aoaeoeai? aoiii? ?aae?one Eoi?oio oa Aethi?i?th, ye?
noaiiaeyoue rCu=0.126 ii, rAl=0.138 ii.

9. I?iaiae?ciaaii ci?ie aaee/eie ia?aiao??a aeaiaioa?ieo eii??ie o
?yaeao ?cino?oeoo?ieo oa?ia?ieo niieoe nenoai Ln-Cu-Al oa Ln-Ag-Al.
Niinoa??aa?oueny a?aeoeeaiiy a?ae iiiioiiiiai ciaioaiiy ia’?i?a
oa?ia?ieo aethi?i?ae?a ?oa?a?th, ui aeaco? ia iiaeeeaee i?ii?aeiee
aaeaioiee noai eiai aoii?a. Iaoiaeii LIII-?aioaai?anueei? aani?aoe?eii?
niaeo?ineii?? aeine?aeaeaii aaeaioiee noai aoii?a Yb a niieoeao
Yb4(Cu0.26Al0.74)33 (ao.=3.0) oa Yb(Cu0.30Al0.70)3 (ao.=2.28).

10. Aea/aia oaiia?aoo?ia caeaaei?noue ieoiiiai iii?o aeey niieoe
Dy(Ag0.48Al0.52)5 oa Dy2-x(Ag0.53Al0.47)17 a ?ioa?aae? 100-700 E.
Aeine?aeaeai? aethi?i?aee oa?aeoa?ecothoueny iaoae?/iei oeiii
i?ia?aeiino? oa ieoiiei aeeeo?iiii?ii ii?yaeeo 10-6 Iii.

Nienie i?aoeue, iioae?eiaaieo ii oai? aeena?oaoe??

1. Noaeueiaoiae/ A.I., Eocueia TH.A. Iia? niieoee RCuAl3 aea (R-Tb, Dy,
Ho, Er, Tm, Yb) oa ?o e?enoae?/ia no?oeoo?a// Aeii. AI O?N?. Na?. A,
1988. N 11. C. 38-41.

2. Noaeueiaoiae/ A.I., Eocueia TH.A., Aaeaiooea E.?. Niieoee LuAl,
Lu3Al2, Tm3Al2 oa ?o e?enoae?/ia no?oeoo?a// Aeii. AI O?N?. Na?.A, 1989.
N 10. C.41-43.

16

3. Noaeueiaoiae/ A.I., Eocueia TH.A. Iiaua eioa?iaoaeeeaeu Ln(Ag,Al)4 e
eo no?oeoo?a// Eca. AI NNN?. Iaoaeeu, 1990. N 5. C. 214-216.

4. Noaeueiaoiae/ A.I., Eocueia TH.A. Iia? niieoee Ln6(Cu,Al)23 oa ?o
e?enoae?/ia no?oeoo?a// Aeii. AI O?N?. Na?.A, 1990. N 6. C. 60-62.

5 Noaeueiaoiae/ A.I., Eocueia TH.A. Iiaue aethieieae Yb8Cu17Al49 e aai
no?oeoo?a// E?enoaeeia?aoey, 1991. O.36. Aui. 6. C. 1427-1430.

6 Noaeueiaoiae/ A.I., Eocueia TH.A. Iiaua niaaeeiaiey ni no?oeoo?ie
Th2Ni17 a nenoaiao ?aaeeicaiaeueiue iaoaee-na?aa?i-aethieiee// Aeiee. AI
ONN?, 1991. N 7. C. 135-137.

7 Noaeueiaoiae/ A.I. Nenoaia Ho-Cu-Al// A?niee Euea?anueeiai
oi?aa?neoaoo. Na?. o?i.1991, Aei. 31. C.20-24.

8 Noaeueiaoiae/ A.I., Eocueia TH.A., Aaeaiooea E.E. Oaciaua ?aaiiaaney e
e?enoaeee/aneay no?oeoo?a niaaeeiaiee a nenoaiao Lu-Al e Lu-Cu-Al//
Ecaanoey ?AI. Iaoaeeu, 1992. N 1. N. 216-221.

9 Noaeueiaoiae/ A.I., Eocueia TH.A. Iiaua niaaeeiaiey a nenoaiao
?.C.I.-Ag-Al e eo e?enoaeee/aneay no?oeoo?a// Ecaanoey ?AI. Iaoaeeu,
1992. N 3. C. 220-222.

10 Noaeueiaoiae/ A.I., Eocueia TH.A. Iiaia niaaeeiaiea DyAg2.3Al2.7 e
aai e?enoaeee/aneay no?oeoo?a// E?enoaeeia?aoey, 1992. O.37. Aui.5. C.
1334-1337.

11 Noaeueiaoiae/ A.I., Aaaeaeaoeeee A.N., Eocueia TH.A. Iiaua
niaaeeiaiey ni no?oeoo?ie PuNi3 a nenoaiao ?.C.I.-Cu-Al// Ecaanoey ?AI.
Iaoaeeu, 1992. N 3. C. 227-230.

12 Stel’makhovych B.M., Kuz’ma Yu.B., Babizhets’ky V.S. The
ytterbium-copper-aluminium system// J. of Alloys and Nompounds, 1993. V.
190. P. 161-164.

13 Noaeueiaoiae/ A.I., Aenaeue?oae E.A., Eocueia TH.A. Iiaua niaaeeiaiey
ni no?oeoo?ie YbMo2Al4 e Th2Zn17// Ecaanoey ?AI. Iaoaeeu, 1993.N 1. C.
210-213.

14 Noaeueiaoiae/ A.I., Eocueia TH.A. Ae?aa?aia oaciaeo ??aiiaaa nenoaie
Dy-Ag-Al i?e 870 E// Aeii. AI Oe?a?ie. 1994, N 3. N.86-89.

15 Noaeueiaoiae/ A.I., Aanthiue I.E., Eocueia TH.A. Oaciaua ?aaiiaaney e
e?enoaeee/aneay no?oeoo?a niaaeeiaiee nenoaiu Tb-Cu-Al a iaeanoe aei
0.50 iie. aeie. Tb// Ecaanoey ?AI ?innee. Iaoaeeu. 1995. N 5. C.162-169.

16 Stel’makhovych B.M., Akselrud L.G., Kuz’ma Yu.B. The
Tb2(Cu0.47Al0.53)17 and Tb(Cu0.58Al42)11 aluminides and their crystal
structure// J. of Alloys and Compounds, 1996. V 234. P. 167-170.

17

Aiioaoe?y

Noaeueiaoiae/ A.I. Aca?iiae?y eiiiiiaio?a o nenoaiao Ho, Yb, Lu-Cu-Al
oa Dy-Ag-Al (ae?aa?aie oaciaeo ??aiiaaa, e?enoae?/ia no?oeoo?a oa
o?ce/i? aeanoeaino? niieoe). -?oeiien.

Aeena?oaoe?y ia caeiaoooy iaoeiaiai nooiaiy eaiaeeaeaoa o?i?/ieo iaoe
ca niaoe?aeuei?noth 02.00.01. — iai?aai?/ia o?i?y. -Euea?anueeee
aea?aeaaiee oi?aa?neoao ?i. ?.O?aiea, Euea?a, 1999.

Aeena?oaoe?th i?enay/aii aeine?aeaeaiith oaciaeo ??aiiaaa, e?enoae?/ieo
no?oeoo? ?ioa?iaoae?/ieo niieoe oa ?o o?ce/ieo aeanoeainoae. Iiaoaeiaaii
?cioa?i?/i? ia?a??ce ae?aa?ai noaio i?e 870 E aeey iio??eieo nenoai
Tb,Ho,Yb,Lu-Cu-Al oa Dy-Ag-Al, anoaiiaeai? iaae? oaa?aeeo ?ic/ei?a ia
iniia? a?ia?ieo niieoe oa iaeano? aiiiaaiiino? oa?ia?ieo niieoe. Aia?oa
aeine?aeaeaii e?enoae?/io no?oeoo?o 4-o a?ia?ieo oa 48-ie oa?ia?ieo
?ioa?iaoae?ae?a ye? iaeaaeaoue aei 15-oe no?oeoo?ieo oei?a. Aeyaeaii
/ioe?e iiaeo no?oeoo?ieo oeie. Aeine?aeaeaii aaeaioiee noai aoii?a
?oa?a?th oa oaiia?aoo?io caeaaei?noue ieoiiiai aeaeo?iiii?o aeey aeaio
?ioa?iaoae?/ieo niieoe. I?iaiae?ciaaii caeiiii??iino? aca?iiae??
eiiiiiaio?a o nenoaiao Ln-Cu-Al oa Dy-Ag-Al.

Eeth/ia? neiaa: ae?aa?aia noaio, ?ioa?iaoae?/ia niieoea, e?enoae?/ia
no?oeoo?a, no?oeoo?iee oei, neioac, ?aioaai?anuee? iaoiaee, oaa?ae?
?ic/eie.

Summary

Stel’makhovych B.M. Interaction between components in the systems
Ho,Yb,Lu-Cu-Al and Dy-Ag-Al (phase diagrams, crystal structures and
physical properties of the compounds). Manuscript.

Thesis for obtaining the scientific degree of Candidate of Chemical
Sciences. Speciality 02.00.01. — inorganic chemistry. -Ivan Franko L’viv
State University. L’viv, 1998.

Thesis is devoted to investigation of phase equilibria, crystal
structures and physical properties of intermetallic compounds.
Isothermal sections of phase diagrams of ternary systems Tb,
Ho,Yb,Lu-Cu-Al and Dy-Ag-Al have been built and limit composition of
solid solutions on the base of binary compounds and homogeneity ranges
of ternary compounds have been determined. Crystal structure of 4 binary
and 48 ternary intermetallides, which belong to 15 structure types, have
been determined for the first time. Four new structure types have been
found. Valence state of Ytterbium atoms and temperature dependence of
electroresistance for two intermetallic compounds have been studied.
Regularities of the interaction in systems Ln-Cu-Al and Dy-Ag-Al have
been analized.

Keywords: phase diagram, intermetallic compound, crystal structure,
structure type, synthesis, X-ray method, solid solution.

18

Aiiioaoeey

Noaeueiaoiae/ A.I. Acaeiiaeaenoaea eiiiiiaioia a nenoaiao
Ho,Yb,Lu-Cu-Al e Dy-Ag-Al (aeeaa?aiiu oaciauo ?aaiiaanee, e?enoaee/aneay
no?oeoo?a e oece/aneea naienoaa niaaeeiaiee). -?oeiienue.

Aeenna?oaoeey ia nieneaiea o/aiie noaiaie eaiaeeaeaoa oeie/aneeo iaoe
ii niaoeeaeueiinoe 02.00.01. — iai?aaie/aneay oeiey. -Eueaianeee
ainoaea?noaaiiue oieaa?neoao ei. E.O?aiei, Eueaia, 1999.

Aeenna?oaoeey iinayuaia enneaaeiaaieth oaciauo ?aaiiaanee,
e?enoaeee/aneeo no?oeoo? eioa?iaoaeee/aneeo niaaeeiaiee e eo oece/aneeo
naienoa. Iino?iaiu ecioa?ie/aneea na/aiey aeeaa?aii ninoiyiey i?e 870 E
aeey iyoe o?ieiuo nenoai — Tb, Ho, Yb, Lu-Cu-Al e Dy-Ag-Al (?en.1-3).
Enneaaeiaaiiua nenoaiu oa?aeoa?ecothony ia?aciaaieai oaa?aeuo ?anoai?ia
caiauaiey ia iniiaa aeia?iuo niaaeeiaiee LnCu, DyAg, LnCu2, LnCu5,
LnAl2, a oaeaea iaeanoyie aiiiaaiiinoe oa?ia?iuo niaaeeiaiee:
Ln(Cu,Al)12, Ln2(Cu,Al)17, Ln(Cu,Al)5, Ln(Cu,Al)2, Dy(Ag,Al)12,
Dy2-x(Ag,Al)17, Dy(Ag,Al)5. A?aie/iua ninoaau oaa?aeuo ?anoai?ia
aeia?iuo niaaeeiaiee e iaeanoe aiiiaaiiinoe oa?ia?iuo niaaeeiaiee nenoai
Ln-Cu-Al ii?aaeaeyee ii eciaiaieyi ia?aiao?ia ?aoaoee niaaeeiaiey a
caaeneiinoe io aai ninoaaa. Ec-ca iaeiai ?acee/ey aaee/ei aoiiiuo
?aaeeonia na?aa?a e aethieiey, e, niioaaonoaaiii, ionoonoaey eciaiaiey
ia?aiao?ia ?aoaoee a i?aaeaeao iaeanoe aiiiaaiiinoe oaa?aeuo ?anoai?ia,
eo a?aie/iua ninoaau ii?aaeaeyee ooi/iaieai niiniaia caiieiaiey
e?enoaeeia?aoe/aneeo iiceoeee, caiyouo noaoenoe/aneie nianueth aoiiia, a
aeaoooaciuo ia?acoeao, niaea?aeaueo, eae iniiaioth oaco, a?aie/iue
ninoaa oaa?aeiai ?anoai?a.

Aia?aua iaia?oaeaii e enneaaeiaaia e?enoaeee/aneay no?oeoo?a 4-ao
aeia?iuo e 48-ie oa?ia?iuo eioa?iaoaeeeaeia, i?eiaaeeaaeaueo e 15-oe
no?oeoo?iuo oeiai (oaae. 1). Iaia?oaeaii 4-a iiauo no?oeoo?iuo oeia:

— Yb4(Cu0.26Al0.74)33 (?en. 4) — i?eiaaeeaaeeo e no?oeoo?iui oeiai n
eoae/aneie eii?aeeiaoeeae aoiiia iaiueoaai ?acia?a;

— Tb(Cu0.58Al0.42)11 (?en. 5) — no?oeoo?iue oei, i?iecaiaeiue io oeia
BaCd11, ia?aciaai ?iiae/aneie aeaoi?iaoeeae oao?aaiiaeueiie ?aoaoee
iineaaeiaai e oaaee/aieai ia?aiao?ia a e b ia aaee/eio 2. I?eiaaeeaaeeo
e no?oeoo?iui oeiai n eeinayae?e/aneie eii?aeeiaoeeae aoiiia iaiueoaai
?acia?a;

— Dy2-xAgy(Ag0.44Al0.56)17, x=0.26, y=0.25 (?en. 6) — no?oeoo?iue oei,
i?iecaiaeiue io oeia Th2Ni17, oa?aeoa?ecothueeny /anoe/iie
aeaoaeoiinoueth e?enoaeeia?aoe/aneie iiceoeee, caiyoie aoiiaie
aeeni?icey, e aiaae?aieai aeiiieieoaeueiuo aoiiia na?aa?a. I?eiaaeeaaeeo
e no?oeoo?iui oeiai n eeinayae?e/aneie eii?aeeiaoeeae aoiiia iaiueoaai
?acia?a;

19

— DyAg2.3Al2.7 (?en. 7) — no?oeoo?iue oei, i?iecaiaeiue io oeiia
Sc3Ni11Si4 e EuMg5, oa?aeoa?ecothueeny iaee/eai o?ao
acaeiieneeth/athueony iiceoeee, /anoe/ii caiieiaiiuo aoiiaie na?aa?a e
aethieiey. I?eiaaeeaaeeo e no?oeoo?iui oeiai n eeinayae?e/aneie
eii?aeeiaoeeae aoiiia iaiueoaai ?acia?a.

Inoaeueiua oa?ia?iua aethieieaeu i?eiaaeeaaeao e ?aiaa ecaanoiui
no?oeoo?iui oeiai ThMn12, YbMo2Al4, Th2Zn17, CaCu5, Th6Mn23, PuNi3,
La3Al11, p-CeNi2+xSb2-x, KHg2. No?oeoo?iua oeiu ThMn12, Th2Zn17,
Th2Ni17, PuNi3 aeecei?iaenoaaiiua n oeiii CaCu5 (?en. 8) e
oa?aeoa?ecothony iaee/eai o?aoaieueiuo, aaenaaiiaeueiuo e
aaenaaii-o?aoaieueiuo (Eaaiiy) naoie ec aoiiia iaeiai ?acia?a (Cu, Ag e
Al). A no?oeoo?ao inoaeueiuo niaaeeiaiee ia?acothony aieaa neiaeiua
naoee.

Ia iniiaa aiaeeca iaaeaoiiiuo ?annoiyiee a no?oeoo?ao enneaaeiaaiiuo
niaaeeiaiee e eo caaeneiinoe io ninoaaa noaoenoe/aneie niane
ii?aaeaeaiu yoaeoeaiua aoiiiua ?aaeeonu aoiiia iaaee e aethieiey aeey
eii?aeeiaoeeiiiiai /enea 12. Iie ninoaaeytho rCu=0.126 e rAl=0.138 ii.

Aiaeec caaeneiinoe ia?aiao?ia yeaiaioa?iuo y/aae a ?yaeao
ecino?oeoo?iuo niaaeeiaiee nenoai Ln-Cu-Al e Ln-Ag-Al oeacuaaao ia
aiciiaeioth i?iiaaeooi/ioth aaeaioiinoue aoiiia eooa?aey. Iaoiaeii
LIII-?aioaaiiaenie aaeni?aoeeiiiie niaeo?ineiiee enneaaeiaaio aaeaioiia
ninoiyiea aoiiia eooa?aey a niaaeeiaieyo Yb4(Cu0.26Al0.74)33 (ao.=3.0)
Yb(Cu0.30Al0.70)3 (ao.= 2.28) (?en. 9).

Aeey niaaeeiaiee Dy(Ag0.48Al0.52)5 (no?. oeia DyAg2.3Al2.7) e
Dy2-x(Ag0.53Al0.47)17 (no?. oeia Th2Ni17) eco/aia oaiia?aoo?iay
caaeneiinoue aeaeo?inii?ioeaeaiey a eioa?aaea oaiia?aoo? 100-700 E
(?en.10). Enneaaeiaaiiua aethieieaeu oa?aeoa?ecothony iaoaeee/aneei
oeiii yeaeo?ii?iaiaeeiinoe e oaeaeueiui yeaeo?inii?ioeaeaieai ii?yaeea
~10-6 Iii.

Eeth/aaua neiaa: aeeaa?aiia ninoiyiey, eioa?iaoaeee/aneia niaaeeiaiea,
e?enoaeee/aneay no?oeoo?a, no?oeoo?iue oei, ?aioaaiianeea iaoiaeu,
oaa?aeua ?anoai?u.

I?aeienaii aei ae?oeo 25.12.98 ?. Oi?iao 60o84 1/16

Ae?oe ionaoiee. Ae?oe. a?e. 1,0. Oe?aae 100. Cai. 530

Ae?oe. IOO ? 58. 290008. Euea?a ?a.Oaaei?iaa, 9

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