Effect of Ambient Temperature on the Amorphization Process in Immiscible Cu-Ta System Subjected to Mechanical Alloying.
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- Lee Chung Hyo
- Graduate School, Nagoya University
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- Fukunaga Toshiharu
- Department of Crystalline Materials Science, Nagoya University
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- Mizutani Uichiro
- Department of Crystalline Materials Science, Nagoya University
Bibliographic Information
- Other Title
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- MA処理したCu‐Ta非固溶系のアモルファス化に及ぼす環境温度効果
- MA ショリシタ Cu Ta ヒ コヨウケイ ノ アモルファスカ ニ オヨボス
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Abstract
The ambient temperature effect on mechanical alloying was studied using a mixture of copper and tantalum powders at a composition ratio Ta:Cu=7:3. This system is characterized by a positive heat of mixing of 2kJ/mol. We confirmed that the higher the ambient temperature during milling, the faster the amorphization proceeds. This thermally assisted amorphization(TAA) becomes noticeable after 60 hours of milling. In addition, we found the evidence for the TAA by annealing a partially amorphized MA powders at temperatures below the crystallization temperature. These results were discussed in terms of thermodynamics.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 40 (1), 87-91, 1993
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390001206306118400
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- NII Article ID
- 130000818316
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3812476
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed