Szczegóły publikacji
Opis bibliograficzny
Hydrogen storage characteristics of $Ti_{45}Zr_{38}Ni_{17−x}Co_{x} (x = 4,8)$ alloy and quasicrystal powders produced by mechanical alloying / Akito Takasaki, A. ŻYWCZAK, Ł. GONDEK, H. FIGIEL // Journal of Alloys and Compounds ; ISSN 0925-8388. — 2013 — vol. 580 suppl. 1, s. S216–S218. — Bibliogr. s. S218, Abstr. — International symposium on Metal-Hydrogen Systems 2012 (MH 2012) : Kyoto City, Japan, October 21st to 26th, 2012
Autorzy (4)
- Takasaki Akito
- AGHŻywczak Antoni
- AGHGondek Łukasz
- AGHFigiel Henryk
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 77840 |
|---|---|
| Data dodania do BaDAP | 2013-12-19 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2013.03.145 |
| Rok publikacji | 2013 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
The effect of substitution of Co for Ni on hydrogen storage characteristics of Ti-Zr-Ni/Co powders (Ti-45- Zr38Ni17-xCox (x = 4, 8)) produced by mechanical alloying (MA) was investigated. The final product after MA was amorphous for all the powders, but subsequent annealing caused the formation of the icosahedral quasicrystal (i) phase with a Ti2Ni type crystal and a C14 like Laves phases. The amount of i-phase decreased, and reversely those of Ti2Ni and the Laves phases increased with increasing the amount of Co. After hydrogenation at 573 K and at an initial hydrogen pressure of 3.8 MPa, the maximum hydrogen concentration for the annealed powders reached was about 58 at%, and all the phases in the powders transformed to metallic hydrides ((Zr,Ti)H-2, Ni(Zr,Ti)H-3 and Co(Zr,Ti)H-3). Because of the formation of several hydrides, accelerated hydrogen desorption occurred at several temperatures. The activation energies for hydrogen desorption varied from about 70 kJ/mol to 180 kJ/mol. (C) 2013 Elsevier B.V. All rights reserved.
