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| 低温制备微晶Al2O3-MgAlON复合材料的反应机理 | |
| 引用本文： | 原会雨,杨道媛,宋城,张锐.低温制备微晶Al2O3-MgAlON复合材料的反应机理[J].材料导报,2012,26(2):125-127,139. |
| 作者姓名： | 原会雨 杨道媛 宋城 张锐 |
| 作者单位： | 1. 郑州大学材料科学与工程学院,郑州,450001 2. 河南工业大学材料科学与工程学院,郑州,450007 3. 郑州大学材料科学与工程学院,郑州450001;郑州航空工业管理学院,郑州450015 |
| 基金项目： | 国家自然科学基金，河南省杰出青年基金 |
| 摘 要： | 采用热压烧结,以Al、Al2O3、MgO为原料,在850℃制备微晶Al2O3-MgAlON复合材料。通过XRD、SEM、粒度分析等表征手段对所制备的MgAlON刚玉复合材料进行机理研究发现:在压力存在的情况下,熔融的铝在低温反应过程中对物质的传输和反应的进行起到了"通道"作用,从而使反应能在较低的温度下顺利进行,并使MgAlON的晶粒随温度的升高不断长大。 |
| 关 键 词： | 热压烧结 微晶 Al2O3-MgAlON复合材料 反应机理 |
Reaction Mechanism of Al2O3-MgAlON Composite by Hot-pressing |
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| YUAN Huiyu , YANG Daoyuan , SONG Cheng , ZHANG Rui.Reaction Mechanism of Al2O3-MgAlON Composite by Hot-pressing[J].Materials Review,2012,26(2):125-127,139. | |
| Authors: | YUAN Huiyu YANG Daoyuan SONG Cheng ZHANG Rui |
| Affiliation: | 1,3(1 College of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001;2 School of Materials Scienceand Engineering,Henan University of Technology,Zhengzhou 450007;3 Zhengzhou Institute of Aeronautical IndustryManagement,Zhengzhou 450015) |
| Abstract: | Al2O3-MgAlON composite with microcrystal was prepared with raw materials(Al,Al2O3 and MgO) by hot-pressing sintering at 850℃.By means of XRD,SEM,particle size analysis,the formation mechanism of microcrystal structure of MgAlON was discussed.The ionic transmission and reaction were greatly encouraged during sintering because of the existence of melted Al and pressure,thus the synthesis of MgAlON phase could be completed at low temperature and the grains of the composite could be well developed. |
| Keywords: | hot-pressing sintering microcrystal Al2O3-MgAlON composite the reaction mechanism |
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