PHASE-TRANSITIONS IN NB-H SYSTEM

Authors
SOROKINA NI WLOCEWICZ D PLACKOWCKI T
Citation
Ni. Sorokina et al., PHASE-TRANSITIONS IN NB-H SYSTEM, International journal of hydrogen energy, 21(11-12), 1996, pp. 939-943
Citations number
18
Categorie Soggetti
Energy & Fuels","Environmental Sciences","Physics, Atomic, Molecular & Chemical
Journal title
International journal of hydrogen energy → ACNP
ISSN journal
03603199
Volume
21
Issue
11-12
Year of publication
1996
Pages
939 - 943
Database
ISI
SICI code
0360-3199(1996)21:11-12<939:PINS>2.0.ZU;2-H
Abstract
A number of phase transitions (PT) of NbHx (x > 0.7) were studied by c alorimetry and thermal expansion methods at 70-430 K. The pressure eff ect on low PT of NbH0.84 was investigated. The concentration effects o n heat and transport properties of alpha'-, beta-, gamma-phases were d etermined. Some of these anomalies have already been predicted, others -such as compressibility along (110)(c) at the beta double right arrow alpha' PT of NbH0.9, large hysteresis of thermal conductivity in the range gamma double right arrow beta PT of NbH0.9, need additional inve stigations. Copyright (C) 1996 International Association for Hydrogen Energy