Hydrogen storage characteristics of Ti-Zr-Cr-V alloys

Sung Wook Cho; Chang Suck Han; Choong Nyeon Park; Etsuo Akiba

doi:10.1016/S0925-8388(99)00162-0

Hydrogen storage characteristics of Ti-Zr-Cr-V alloys

Sung Wook Cho, Chang Suck Han, Choong Nyeon Park, Etsuo Akiba

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

The improvement of hydrogen storage characteristics by substituting zirconium for titanium in Ti-Cr-V alloys has been studied at 303 K. Zirconium substitution decreased the equilibrium pressure and the hysteresis of the P-C isotherm. However, it increased the slope of the P-C isotherm and decreased the hydrogen storage capacity by forming the ZrCr₂ phase. By modifying the composition ratio of titanium to chromium, thereby suppressing the formation of the ZrCr₂ phase, an alloy having very high hydrogen storage capacity was realized. Heat treatment of the alloys improved the flatness of the plateau greatly without a decrease in both the maximum and the effective hydrogen storage capacities.

Original language	English
Pages (from-to)	244-250
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	289
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(99)00162-0
Publication status	Published - Jul 20 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/S0925-8388(99)00162-0

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abstract = "The improvement of hydrogen storage characteristics by substituting zirconium for titanium in Ti-Cr-V alloys has been studied at 303 K. Zirconium substitution decreased the equilibrium pressure and the hysteresis of the P-C isotherm. However, it increased the slope of the P-C isotherm and decreased the hydrogen storage capacity by forming the ZrCr2 phase. By modifying the composition ratio of titanium to chromium, thereby suppressing the formation of the ZrCr2 phase, an alloy having very high hydrogen storage capacity was realized. Heat treatment of the alloys improved the flatness of the plateau greatly without a decrease in both the maximum and the effective hydrogen storage capacities.",

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AU - Cho, Sung Wook

AU - Han, Chang Suck

AU - Park, Choong Nyeon

AU - Akiba, Etsuo

PY - 1999/7/20

Y1 - 1999/7/20

N2 - The improvement of hydrogen storage characteristics by substituting zirconium for titanium in Ti-Cr-V alloys has been studied at 303 K. Zirconium substitution decreased the equilibrium pressure and the hysteresis of the P-C isotherm. However, it increased the slope of the P-C isotherm and decreased the hydrogen storage capacity by forming the ZrCr2 phase. By modifying the composition ratio of titanium to chromium, thereby suppressing the formation of the ZrCr2 phase, an alloy having very high hydrogen storage capacity was realized. Heat treatment of the alloys improved the flatness of the plateau greatly without a decrease in both the maximum and the effective hydrogen storage capacities.

AB - The improvement of hydrogen storage characteristics by substituting zirconium for titanium in Ti-Cr-V alloys has been studied at 303 K. Zirconium substitution decreased the equilibrium pressure and the hysteresis of the P-C isotherm. However, it increased the slope of the P-C isotherm and decreased the hydrogen storage capacity by forming the ZrCr2 phase. By modifying the composition ratio of titanium to chromium, thereby suppressing the formation of the ZrCr2 phase, an alloy having very high hydrogen storage capacity was realized. Heat treatment of the alloys improved the flatness of the plateau greatly without a decrease in both the maximum and the effective hydrogen storage capacities.

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

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ER -

Hydrogen storage characteristics of Ti-Zr-Cr-V alloys

Abstract

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