| AlN陶瓷低温烧结制备与性能研究 |
| |
| 引用本文： | 牛锛,王孙昊,李保平,王介强.AlN陶瓷低温烧结制备与性能研究[J].中国陶瓷工业,2010,17(2):1-4. |
| |
| 作者姓名： | 牛锛 王孙昊 李保平 王介强 |
| |
| 作者单位： | 济南大学材料科学与工程学院,济南,250022 |
| |
| 基金项目： | 山东省自然学科基金项目资助 |
| |
| 摘 要： | 采用两组复合烧结助剂Y2O3-CaF2,Y2O3-CaF2-Li2CO3在1600℃烧结AlN陶瓷,对AlN陶瓷烧结密度,热性能和电性能进行了测试,并分析了AlN陶瓷物相变化和微观结构。结果表明,复合烧结助剂在低温下能明显促进AlN陶瓷致密化及晶粒生长发育,尤其是添加3wt%Y2O3-2wt%CaF2作烧结助剂,1600℃常压烧结4h制备了结晶良好,相对密度为98.4%,热导率为133.62W/m.K,同时具有较低相对介电常数的AlN陶瓷。在低温常压条件下制备出性能较高的AlN陶瓷。
|
| 关 键 词： | AlN陶瓷 热导率 烧结助剂 低温烧结 |
PREPARATION AND PROPERTIES STUDY OF AlN CERAMICS SINTERED AT LOW TEMPERATURE |
| |
| Niu Ben,Wang Sunhao,Li Baopin,Wang Jieqiang.PREPARATION AND PROPERTIES STUDY OF AlN CERAMICS SINTERED AT LOW TEMPERATURE[J].China Ceramic Industry,2010,17(2):1-4. |
| |
| Authors: | Niu Ben Wang Sunhao Li Baopin Wang Jieqiang |
| |
| Affiliation: | Niu Ben Wang Sunhao Li Baopin Wang Jieqiang(Materials Science and Engineering School,University of Jinan,Jinan 250022) |
| |
| Abstract: | AlN ceramics doped with Y2O3-CaF2 and Y2O3-CaF2-Li2CO3 were sintered at 1600℃.The density,thermal and electrical properties,and AlN phase change and microstructure of sintered AlN ceramics were tested and analyzed.The results show that composite sintering additives promote AlN ceramic densification and grain development significantly.Especially dense AlN ceramics doped with 3wt%Y2O3-2wt%CaF2 and sintered at 1600℃ for 4h have good crystalline grains.The relative density of AlN ceramics is 98.4%,the thermal conductivity of AlN ceramics is 133.62W/m.K,and AlN ceramics have a low relative dielectric constant.The higher performance AlN ceramics are prepared by pressureless sintering at a lower temperature. |
| |
| Keywords: | AlN ceramics thermal conductivity sintering aids low-temperature sintering |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
