Ni-Al系メカニカルアロイング粉末のメカノケミカル反応
URI | http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/3739 | ||||||||||||
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ファイル |
kenkyuhen39043.pdf
( 503.0 KB )
公開日
:2009-02-17
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タイトル |
Ni-Al系メカニカルアロイング粉末のメカノケミカル反応
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別タイトル |
Mechanochemical Reaction of Mechanically Alloyed Powders in the Ni-Al System
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著者 |
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キーワード |
mechanical alloying
combustion synthesis
mechanochemical reaction
reactive diffusion
intermetallic compound
nickel aluminide
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NDC |
501.41
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抄録 |
Mechanochemical reaction by mechanical alloying (MA) was investigated for powder mixtures of Ni-33mol%Al. Exothermic reaction was striking in the MA powders of fine layered structures observed in an intermediate stage of the MA process, and the MA powders induced combustion synthesis in air (room temperature) and vacuum heating at a relatively low temperature (near 673K). The experimental results were discussed on the basis of the model created by Bhattacharya and Arzt. The reason for the activation of combustion synthesis by MA is considered to be extra diffusivity caused by ultrahigh dislocation density, such that the high reaction heat forms a liquid phase locally which induces combustion synthesis |
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掲載雑誌名 |
広島工業大学紀要. 研究編
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巻 |
39
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開始ページ |
43
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終了ページ |
48
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出版年月日 |
2005
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出版者 |
広島工業大学
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ISSN |
13469975
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NCID |
AA11599110
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本文言語 |
日本語
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資料タイプ |
紀要論文
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著者版フラグ |
出版社版
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旧URI | |||||||||||||
区分 |
it-hiroshima
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