書誌事項
- タイトル別名
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- Rotating-Arm Reaction Ball Milling for Mechanical Alloying and Solid State Amorphization of Ceramics.
- セラミックス ノ MA ト コソウ アモルファスカ ノ タメ ノ メディア カクハンガタ ハンノウ ボールミリング
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抄録
Far from equilibrium rotating-arm reaction ball milling is developed for the mechanical alloying and solid state amorphization of ceramic materials. This processing provides peripheral equipments for the measurements of the temperature inside the PSZ tank and the torque applied to PSZ agitating-arms for the efficient and high quality production of amorphous (a) ceramic powders. We find that the mechanical alloying of powder mixture, PSZ-20mass%Al2O3 can produce the solid state amorphization in the multilayer (ml), according to a single reaction of ml-(PSZ/20mass%α-Al2O3)→a-(3mol%Y2O3-ZrO2)80(Al2O3)20. The reaction milling method can be used to determine the starting time (ts) of the exothermic amorphization at the plateau attrition temperature. The analysis of Johnson-Mehl-Avrami equation with X=1-exp{-k(t-ts)n} shows that the isothermal amorphization obeys an exponential growth law with n=0.5 by using volume fractions (X), as obtained by X-ray diffraction method, of amorphous (3mol%Y2O3-ZrO2)80(Al2O3)20. Furthermore, our dry attrition milling realizes free from the contamination of Iron incorporated in the amorphous ZrO2-20mol%Al2O3 particle, when compared with the previous result.
収録刊行物
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- 粉体および粉末冶金
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粉体および粉末冶金 46 (12), 1279-1283, 1999
一般社団法人 粉体粉末冶金協会
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詳細情報
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- CRID
- 1390001206309377280
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- NII論文ID
- 10005741827
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- NII書誌ID
- AN00222724
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- ISSN
- 18809014
- 05328799
- http://id.crossref.org/issn/05328799
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- NDL書誌ID
- 4942696
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可