Hydrogen induced phase transitions in amorphous alloys

✍ Scribed by V.A. Somenkov; S.S. Agafonov; V.P. Glazkov; G.F. Syrykh; V.N. Verbetsky; Yu.L. Yaropolov

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 438 KB
• Volume: 36
• Category: Article
• ISSN: 0360-3199
• DOI: 10.1016/j.ijhydene.2010.07.005

✦ Synopsis

Hydrogen induced structure transformations in amorphous alloys ZrPd, ZrRh and ZrRhBe were studied by neutron and X-ray-diffraction technique under gas pressure up to 2 kbar. It was shown that the amorphous alloy Zr 0.7 Pd 0.3 which was hydrogenated at temperature below the temperature of crystallization decomposes into metastable hyper-stoichiometric Pd-hydride with bcc lattice and amorphous hypo-stoichiometric Zr-hydride. The polyamorphous transition (transition between the amorphous phases) was reversible while the formation of metastable phase was not.