TY - JOUR
T1 - Mutual impact of crystal volume and heat of alloy formation on hydride stabilities in Zr(PdxCr1−x)2 and similar intermetallics
AU - Babai, D.
AU - Bereznitsky, M.
AU - Shneck, R. Z.
AU - Jacob, I.
N1 - Funding Information:
This research was supported by the Israel Science Foundation (grant No. 745/15 ). The authors acknowledge the support of Dr. Dmitry Mogilyanski and Prof. Giora Kimmel in the X-ray work, and are grateful to Dr. Ori Yeheskel for helpful discussions on the ultrasonic measurements. This work is dedicated to late Professor David Shaltiel.
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/1/25
Y1 - 2020/1/25
N2 - Hydrides of Zr(PdxCr1−x)2 pseudobinary compounds (x = 0.05, 0.1, 0.175) exhibit slight destabilization and more sloped hydrogen plateau pressures with the increase of the palladium content. The former feature conforms to the rule of reverse stability but violates the trend of increased hydride stability upon increasing the unit cell intermetallic volume. A combination of the two effects, the heat of alloy formation and the crystal volume, shows better correlation with the hydride stabilities than considering separately each property. Hydrogen absorption is found in ZrPd2 at ∼60 atm and associated with its moderate shear modulus.
AB - Hydrides of Zr(PdxCr1−x)2 pseudobinary compounds (x = 0.05, 0.1, 0.175) exhibit slight destabilization and more sloped hydrogen plateau pressures with the increase of the palladium content. The former feature conforms to the rule of reverse stability but violates the trend of increased hydride stability upon increasing the unit cell intermetallic volume. A combination of the two effects, the heat of alloy formation and the crystal volume, shows better correlation with the hydride stabilities than considering separately each property. Hydrogen absorption is found in ZrPd2 at ∼60 atm and associated with its moderate shear modulus.
KW - Correlation with heat of alloy formation and unit cell volume
KW - Hydrogen absorbing materials
KW - Hydrogen absorption in the “hydrogen-inert” ZrPd
KW - Zr(PdCr) pseudobinary intermetallic compounds
UR - http://www.scopus.com/inward/record.url?scp=85072552162&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.152268
DO - 10.1016/j.jallcom.2019.152268
M3 - Article
AN - SCOPUS:85072552162
VL - 814
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 152268
ER -