为研究原位自生氮化铝的可行性，以及掺杂元素、温度等实验条件对氮化过程的影响，在１０００℃高纯氮气氛下，分别对不同成分的合金进行直接氮化实验．通过化学成分分析、Ｘ－ｒａｙ衍射分析等实验手段，从热力学角度分析了原位反应自生成ＡＩＮ的可能性．包括掺杂元素Ｍｇ、Ｓｉ的热力学行为，以及铝合金熔体的氮化反应过程分析．在恒温热重实验基础上，探讨了掺杂元素、氮化温度等条件对氮化反应速率影响．
The feasibility of fabricating AlN was demonstrated. The effects of additives and nitridation temperature on the behavior in direct nitridation of molten
Al-Si-Mg alloys were investigated. The experiments were carried out at different temperatures under high pure nitrogen atmosphere. The main role of additive elements,
and the nitridation process of molten aluminium alloys were also discussed on the base of thermodynamic analysis. Moreover, the effects of temperature and additives
in raw alloys on the nitridation rate were investigated by TG experiments.
参考文献
| [1] | |
| [2] | Urquhart A W. Advanced Materials and Processes, 1991, 7: 25--29. [2] Newkirk M S, Lesher H D. Ceram. Eng. Sci. Proc., 1987, (7--8): 879--882. [3] Antolin S, Nagelberrg A S. J. Am. Ceram. Soc., 1992, 75 (2): 447--452. [4] Breval E, Aghajanian M K, Biel J P, et al. J. Am. Ceram. Soc., 1993, 76: 1865--1868. [5] Scholz H, Greil P. J. Mater. Sci., 1991, 26: 669--677. [6] Lou V L K, Mitchell T E, Heller A H. J. Am. Ceram. Soc., 1985, 68 (2): 49--58. [7] Juneja M. J. Chem. Thermodynamics, 1980, 18: 1025--1029. [8] 丁学勇, 王文忠. 金属学报, 1994 |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%