Phase transitions in intermetallic compounds of CrB-type structure during hydrogen sorption

1994 ◽  
Vol 209 (1-2) ◽  
pp. 93-97 ◽  
Author(s):  
I.E. Nemirovskaya ◽  
V.V. Lunin
Keyword(s):  
Phase Transitions ◽  
Intermetallic Compounds ◽  
Type Structure ◽  
Hydrogen Sorption

Hydrogen sorption properties of new magnesium intermetallic compounds with MgSnCu4 type structure

2021 ◽  
Author(s):  
Z.A. Matysina ◽  
N.A. Gavrylyuk ◽  
M.Т. Kartel ◽  
A. Veziroglu ◽  
T.N. Veziroglu ◽  
...  
Keyword(s):  
Intermetallic Compounds ◽  
Type Structure ◽  
Sorption Properties ◽  
Hydrogen Sorption

Phase transformations in hydrogen sorption-desorption by hydrides of intermetallic compounds of the CrB structural type

1992 ◽  
Vol 32 (5) ◽  
pp. 680-686 ◽  
Author(s):  
I. E. Nemirovskaya ◽  
A. N. Grechenko ◽  
A. M. Alekseev ◽  
V. V. Lunin
Keyword(s):  
Phase Transformations ◽  
Intermetallic Compounds ◽  
Structural Type ◽  
Hydrogen Sorption

Rare Earth-rich Cadmium Compounds RE4TCd (T = Ni, Pd, Ir, Pt)

2008 ◽  
Vol 63 (9) ◽  
pp. 1127-1130 ◽  
Author(s):  
Falko M. Schappacher ◽  
Ute Ch. Rodewald ◽  
Rainer Pöttgen
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Single Crystal ◽  
Intermetallic Compounds ◽  
Three Dimensional ◽  
Type Structure ◽  
Space Group ◽  
X Ray ◽  
Structure Space ◽  
Cadmium Compounds

New intermetallic compounds RE4TCd (RE = Y, La-Nd, Sm, Gd-Tm, Lu; T = Ni, Pd, Ir, Pt) were synthesized by melting of the elements in sealed tantalum tubes in a highfrequency furnace. They crystallize with the Gd4RhIn-type structure, space group F 4̄3m, Z = 16. The four gadolinium compounds were characterized by single crystal X-ray diffractometer data: a = 1361.7(1) pm, wR2 = 0.062, 456 F2 values, 19 variables for Gd4NiCd; a = 1382.1(2) pm, wR2 = 0.077, 451 F2 values, 19 variables for Gd4PdCd; a = 1363.6(2) pm, wR2 = 0.045, 494 F2 values, 19 variables for Gd4IrCd; a = 1379.0(1) pm, wR2 = 0.045, 448 F2 values, 19 variables for Gd4PtCd. The rare earth atoms build up transition metal-centered trigonal prisms which are condensed via common corners and edges, leading to three-dimensional adamantane-related networks. The cadmium atoms form Cd4 tetrahedra which fill voids left in the prisms’ network.

NEW INTERMETALLIC COMPOUNDS IN THE TERNARY SYSTEM Yb-T-Al (T=Ag, Au, Pd, Pt)

1993 ◽  
Vol 07 (01n03) ◽  
pp. 391-394 ◽  
Author(s):  
G. CORDIER ◽  
R. HENSELEIT
Keyword(s):  
Crystal Structure ◽  
Rare Earth ◽  
Transition Metal ◽  
Ternary System ◽  
Crystal Structures ◽  
Intermetallic Compounds ◽  
Structural Characteristics ◽  
Type Structure ◽  
Structural Elements ◽  
New Compounds

Structural characteristics of a number of ternary rare earth/transition metal/aluminium compounds are hexagonal nets of the AlB 2-type, Kagomé nets and tetragonal pyramides. Crystal structures of the new compounds in the ternary Yb-T-Al systems contain units and sections of them. Kagomé nets stacked in an ..ABAB.. sequence are observed in YbAg1.5Al0.5 ( MgZn 2-type). The crystal structure of Yb8Ag21Al45 is related to the BaHg 11-type. YbAu0.8Al3.2 ( CaZn 2 Al 2-type) contains tetragonal pyramides which are connected by common edges. Fragments of the AlB 2- and BaAl 4-type structure are present in Yb5Au15Al16. YbPdAl2 and YbPtAl2 ( YbPdAl 2-type) contain pentagonal prisms as the characteristic structural elements.

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