Disintegration and fine powder preparation of Nb<sub>75</sub>Si<sub>25</sub> via hydrogenation期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Disintegration and fine powder preparation of Nb₇₅Si₂₅ via hydrogenation

Authors:	X G Li A Chiba S Takahashi

Affiliation:	Department of Materials Science and Engineering, Faculty of Engineering, Iwate University, 4-3-5, Ueda, Morioka 020, Japan

Abstract:	Hydrogenation of Nb₇₅Si₂₅ directly in an arc-melting chamber after arc-melting was investigated. A Nb₇₅Si₂₅ ingot absorbs hydrogen rapidly and simultaneously disintegrates into fine hydride powder. After dehydriding at 1073 K for 10.8 ks, fine Nb₇₅Si₂₅ particles with an irregular angular shape are obtained. The collecting efficiency of powder under 100 mesh is 56.1 wt.%.

Keywords:	Nb₇₅Si₂₅ alloy Hydriding-dehydriding Disintegration Powder
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