Calorimetric Investigations of Metal-Hydrogen Systems for Intermetallic Compounds of Laves Phase Type

2002 ◽  
pp. 59-68
Author(s):  
E. Yu. Anikina ◽  
V. N. Verbetsky
Keyword(s):  
Intermetallic Compounds ◽  
Laves Phase ◽  
Phase Type ◽  
Calorimetric Investigations ◽  
Hydrogen Systems

Local magnetic fields in ferromagnetic intermetallic compounds of cubic Laves-phase type

1986 ◽  
Vol 33 (1) ◽  
pp. 430-436 ◽  
Author(s):  
S. Barth ◽  
E. Albert ◽  
G. Heiduk ◽  
A. Möslang ◽  
A. Weidinger ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Intermetallic Compounds ◽  
Laves Phase ◽  
Phase Type ◽  
Local Magnetic Fields

Hyperfine Interactions and Relaxation Effects in Laves-Phase Intermetallic Compounds of Neptunium

1973 ◽  
Vol 8 (5) ◽  
pp. 1901-1911 ◽  
Author(s):  
J. Gal ◽  
Z. Hadari ◽  
U. Atzmony ◽  
E. R. Bauminger ◽  
I. Nowik ◽  
...  
Keyword(s):  
Intermetallic Compounds ◽  
Hyperfine Interactions ◽  
Laves Phase ◽  
Relaxation Effects ◽  
Phase Intermetallic

scholarly journals Structural and In Situ X-ray Diffraction Study of Hydrogenation of CaxMg1−xNi2 (0 ≤ x ≤ 1)

Crystals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 47
Author(s):  
Zia Ur Rehman ◽  
Mohsan Nawaz ◽  
Hameed Ullah ◽  
Pervaiz Ahmad ◽  
Mayeen Uddin Khandaker ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Powder Diffraction ◽  
Gas Flow ◽  
Hydrogen Gas ◽  
Laves Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Phase Type ◽  
Diffraction Patterns

In the quasi-binary system CaNi2-MgNi2 solid-solutions CaxMg1−xNi2 (0 ≤ x ≤ 1) were prepared from the elements. They crystallize in the hexagonal Laves phase type (MgNi2, C36) for x ≤ 0.33 (P63/mmc, a = 482.51(7) pm, c = 1582.1(3) pm for x = 0, a = 482.59 (3), c = 1583.1(1) for x = 0.33) and in the cubic Laves phase type (MgCu2, C15) for 0.33 < x (Fd−3m, a = 697.12(3) pm for x = 0.5, a = 705.11(2) pm for x = 0.67, a = 724.80(2) pm for x = 1). After hydrogenation in an autoclave the X-ray diffraction patterns changed completely. Reflections assigned to CaNiH3, and Ni and Rietveld refinement confirmed this. The hydrogenation properties of CaxMg1−xNi2 (0 ≤ x ≤ 1) compounds were also studied in situ by X-ray powder diffraction. In situ X-ray powder diffraction of CaxMg1−xNi2 (0 ≤ x ≤ 1) compounds under 0.3 MPa hydrogen gas flow (15 sccm), data collected on a Rigaku SmartLab diffractometer in an Anton Paar XRK 900 Reactor Chamber using Cu-Kα1 radiation. Scanning electron microscopy and EDX spectroscopy confirmed the entitled materials and elemental composition, respectively. From the Transmission electron microscopy and Selected area electron diffraction concluded that the CaxMg1−xNi2 (0 ≤ x ≤ 1) compounds were crystalline.

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