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arXiv · 1504.00956

Hydrogenation of Nd-Fe-B magnet powder under a high pressure of hydrogen

Y. Kataoka·Y. Kawamoto·T. Ono·M. Tsubota·J. Kitagawa
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Abstract

The hydrogenation of Nd2Fe14B under a high pressure of hydrogen has been investigated for the first time. At the heat-treatment temperature of 600 degree C, the almost complete decomposition of Nd2Fe14B into NdH2+x and alpha-Fe is observed, although a rather long heat-treatment time is necessary to achieve the sufficient hydrogenation. The desorption of hydrogen from NdH2+x does not occur in the furnace-cooling process.

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Y. Kataoka, Y. Kawamoto, T. Ono, M. Tsubota, J. Kitagawa. 2015-04-03. Hydrogenation of Nd-Fe-B magnet powder under a high pressure of hydrogen. https://arxiv.org/abs/1504.00956

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