摘要
根据Tallon的普遍化方法和热压力功对温度的导数为常数的近似,给出一个新的计算碱卤化物高温下的弹性常数的简单关系式.对NaCl和KCl晶体的检验及与同类研究的比较表明,由该关系式给出的计算结果与实验数据符合很好,本文的方法优于同类关系式.此外,指出一些文献对Tallon普遍化方法的不适当的应用.
A new simple relation for the determination of elastic constants of alkali halides at high temperatures is developed based on Tallon＇ s method of generalization and the approximation that the temperature derivative of the work clone by the thermal pressure is a constant at high temperatures. The tests on NaCl and KCl crystals demonstrate that the agreement between the calculated results obtained by this relation and the corresponding experimental data is very good. It has been shown that the present method is far better as compared with the earlier similar investigations. In addition, the improper application of Tallon＇ s method of generalization in the literature is also pointed out.
出处
《安徽师范大学学报（自然科学版）》
CAS
2007年第3期244-249,共6页
Journal of Anhui Normal University(Natural Science)
基金
Supported by the Natural Science Foundation of Anhui Provincial Educational Board(project No 2006kj073A)
关键词
弹性常数
热膨胀
碱卤晶体
elastic constants
thermal expansion
alkali halide crystals
