| 铝基复合材料中颗粒在凝固界面的行为 |
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| 引用本文： | 吴树森,中江秀雄.铝基复合材料中颗粒在凝固界面的行为[J].金属学报,1998,34(9):939-944. |
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| 作者姓名： | 吴树森 中江秀雄 |
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| 作者单位： | 华中理工大学材料科学与工程系!武汉，430074(吴树森)，日本早稻田大学(中江秀雄) |
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| 摘 要： | 利用区域熔化定向凝固的方法，研究了Ａｌ／Ａｌ２Ｏ３及Ａｌ－Ｓｉ／Ａｌ２Ｏ３中颗粒在凝固界面的行为，通过在Ａｌ－Ｓｉ／Ａｌ２Ｏ３中添加微量元素，实现了颗粒被描捉并在固相中均匀分布的状态，提出了基于界面能的解释模型。
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| 关 键 词： | 铝基 复合材料 凝固界面 颗粒分布 接触角 陶瓷 |
| 收稿时间： | 1998-09-18 |
| 修稿时间： | 1998-09-18 |
BEHAVIOR OF PARTICLES AT SOLIDIFICATION INTERFACE OF ALUMINUM MATRIX COMPOSITES |
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| WU Shusen NAKAE Hideo Waseda Univeristy,Tokyo,Japan Correspondent: WU Shusen,associate professor Tel: ,Fax:.BEHAVIOR OF PARTICLES AT SOLIDIFICATION INTERFACE OF ALUMINUM MATRIX COMPOSITES[J].Acta Metallurgica Sinica,1998,34(9):939-944. |
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| Authors: | WU Shusen NAKAE Hideo Waseda Univeristy Tokyo Japan Correspondent: WU Shusen associate professor Tel: Fax: |
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| Affiliation: | WU Shusen (Department of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan )NAKAE Hideo Waseda Univeristy,Tokyo,Japan Correspondent: WU Shusen,associate professor Tel: ()(O),()(H),Fax: () |
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| Abstract: | The behavior of particles at solidification interface of Al/Al2O3 and Al-Si/Al2O3 composites was studied by using the zone-melting unidirectional solidification method. The particles were pushed by S/L interface in most of the composites, but the state of particle engulfment was realized by adding minute elements into an Al-Si/Al2O3 composite. An explanation model based on interfacial energies was proposed. If the contact angle between a solidification front and a particle is more than 90°, the particle can be engulfed into the solid. Otherwise the particle would be pushed. |
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| Keywords: | metal-matrix composite solidification particle distribution contact angle |
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