高纯度的氮气中,以Al-Mg-Y合金为母合金,利用Lanxide技术合成了含烧结助剂Y2O3的复合AIN粉体.通过扫描电镜、X射线衍射、粒径分析及化学成分分析等检测手段对氮化产物进行表征.实验结果表明,合金氮化反应完全,氮化产物疏松易于粉化.粉化后获得的复合AIN粉体具有纯度高,氧杂质含量低,粒度细小等优点.
Composite AlN powder, mixed with the sintering additive Y_2O_3, was synthesized by the direct
nitridation of molten Al-Mg-Y alloys. The character of products was determined by means of electron microscopy, X-ray diffraction,
granularmetric analysis and chemical composition analysis etc. The results show that the nitridation rate of the raw alloys is higher,
and the nitridation products are porous enough to be easily crushed. Composite AlN powder, obtained by the Lanxide method, has excellent
characters such as high purity, especially low oxygen content, and narrow well-distributed grain size and so on.
参考文献
| [1] | Slack G A, Transili R A, Pohl R O, et al. J. Phys. Chem. Solids, 1987, 48: 641--647. [2] Bail Y, Drew R A L. Key Eng. Mater., 1996, 122--124: 553. [3] Sheppard L M. Am. Ceram. Soc. Bull., 1990, 69 (11): 1801--1812. [4] 秦明礼, 曲选辉, 林健凉, 等. 稀有金属材料与工程, 2002, 31 (1): 8--12. [5] Terao R, Tatami J, Meguro T, et al. J. Eur. Ceram. Soc., 2002, 22: 1051--1059. [6] Jackson T B, Virkar A V, Karren L M, et al. J. Am. Ceram. Soc., 1997, 80 (6): 1421--1435. [7] Liu Yaocheng, Wu Yin, Zhou Heping. Mater. Lett., 1998, 35: 232--235. [8] Newkirk M S, Lesher H D. Ceram. Eng. Sci. Proc., 1987, 8 (7-8): 879--882. [9] Urquhart A W. Adv. Mater. Proc., 1991, 7: 25--29. [10] 王群, 林志浪, 周美玲. 氮化铝粉体的反应合成方法. 中国专利, C01B21/072, 00120742, 2000-12-06. [11] 梁英教, 车荫昌. 无机物热力学数据手册, 沈阳, 东北大学出版社, 1993. [12] 林志浪. 氮化铝材料的原位合成制备, 硕士学位论文, 北京工业大?学, 2001. [13] 王群. Lanxide AlN材料的合成机理, 博士学位论文, 大连理工大?学, 1994. [14] Juneja M. J. Chem. Thermodyn., 1980, 18: 1025--1029. [15] Kagawa Y, Khatri S C, Koczak M J. Ceram. Eng. Sci. Proc., 1993, 14 (9-10): 776--781. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%