| 添加Y2O3-Dy2O3的AlN陶瓷的烧结特性及显微结构 |
| |
| 引用本文： | 许昕睿,庄汉锐,徐素英,李文兰,邬凤英. 添加Y2O3-Dy2O3的AlN陶瓷的烧结特性及显微结构[J]. 无机材料学报, 1999, 14(6): 989 |
| |
| 作者姓名： | 许昕睿 庄汉锐 徐素英 李文兰 邬凤英 |
| |
| 作者单位： | 中国科学院上海硅酸盐研究所; 上海 200050 |
| |
| 基金项目： | 国家自然科学基金!69836030 |
| |
| 摘 要： | 本文探索了以自蔓延高温（SHS）法合成并经抗水化处理的AlN粉为原料，以Y2O3－Dy2O3作为助烧结剂的AlN陶瓷的烧结特性及显微结构．结果表明，晶界处存在Dy4Al2O9、Y4Al2O9、DyAlO3、Dy2O3和DyN等第二相物质，随烧结温度变化，第二相的种类、数量和分布不同，显微结构也随之变化，从而影响AlN的热导率．在1850℃下，可获得热导率为148W／m·K的AlN陶瓷．
|
| 关 键 词： | AlN Y2O3－Dy2O3 烧结特性 显微结构 热导率 |
| 收稿时间： | 1998-11-11 |
| 修稿时间： | 1999-01-12 |
Sintering Characteristic and Microstructure of AlN-based Ceramics with the Addition of Y2O3-Dy2O3 |
| |
| XU Xin-Rui,ZHUANG Han-Rui,XU Su-Ying,LI Wen-Lan,WU Feng-Ying. Sintering Characteristic and Microstructure of AlN-based Ceramics with the Addition of Y2O3-Dy2O3[J]. Journal of Inorganic Materials, 1999, 14(6): 989 |
| |
| Authors: | XU Xin-Rui ZHUANG Han-Rui XU Su-Ying LI Wen-Lan WU Feng-Ying |
| |
| Affiliation: | Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China） |
| |
| Abstract: | Sintering characteristic and microstructure of Y2O3-Dy2O3- doped anti-hydrolysis AlN powders synthesized by SHS method were studied. The results show that all kinds of secondary phases, such as Dy4Al2O9, Y4Al2O9, DyAlO3, Dy2O3 and DyN, will appear in the grain boundaries. The sintering temperature affects the microstructure and the kinds, amount and distribution of secondary phases, and therefore influences the thermal conductivity. AlN ceramic s thermal conductivity obtained at 1850℃ is 148W/m·K. |
| |
| Keywords: | aluminum nitride yttrium oxide-dysprosium oxide sintering characteristic microstructure thermal conductivity |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《无机材料学报》浏览原始摘要信息 |
|
点击此处可从《无机材料学报》下载全文 |
