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Hydrogen absorption studies in Zr0.2Tb0.8Co3 and decrepitation and cyclic stabilities in Zr0.2Tb0.8Co3 and ZrMnFe
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Chakrapani Rao, Arun and Ramaprabhu, Sundara (1997) Hydrogen absorption studies in Zr0.2Tb0.8Co3 and decrepitation and cyclic stabilities in Zr0.2Tb0.8Co3 and ZrMnFe. Journal of Alloys and Compounds, 259 (1-2). pp. 254-259. doi:10.1016/s0925-8388(97)00111-4 ISSN 0925-8388.
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Official URL: http://dx.doi.org/10.1016/s0925-8388(97)00111-4
Abstract
Pressure-composition isotherms have been determined for a Zr0.2Tb0.8Co3 alloy in the ranges 10≤P (mbar)≤900 and 75≤T (°C)≤200. The hydrogen absorption study shows that the substitution cf Zr for Tb in TbCo3 results in the shift of the plateau region to higher equilibrium pressures with a reduction in the hydrogen capacity. An X-ray study on the hydrogenated Zr0.2Tb0.8Co3 alloy reveals that the alloy does not decompose upon hydrogenation. Particle size measurements in Zr0.2Tb0.8Co3 and ZrMnFe alloys before and after hydrogenation show that the decrepitation in Zr0.2Tb0.8Co3 is far less than that in the much harder material ZrMnFe. A plateau pressure of near 1 bar at a temperature suitable for practical applications can be conviniently obtained by appropriate replacement of Tb by Zr in TbCo3.
Item Type: | Journal Article | ||||||
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Subjects: | Q Science > Q Science (General) Q Science > QC Physics Q Science > QD Chemistry T Technology > TL Motor vehicles. Aeronautics. Astronautics |
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Journal or Publication Title: | Journal of Alloys and Compounds | ||||||
Publisher: | Elsevier BV | ||||||
ISSN: | 0925-8388 | ||||||
Official Date: | 22 August 1997 | ||||||
Dates: |
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Volume: | 259 | ||||||
Number: | 1-2 | ||||||
Page Range: | pp. 254-259 | ||||||
DOI: | 10.1016/s0925-8388(97)00111-4 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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