梯度功能材料物性参数的推定方法  

Determination of the physical properties of functional gradient materials

作　　者：张雁[1] 刘霓生[1] 陈林泉[1] 王书贤[1] 刘勇琼[1] 

机构地区：[1]中国航天科技集团公司四院,西安710025

出　　处：《固体火箭技术》2004年第1期77-80,83,共5页Journal of Solid Rocket Technology

基　　金：国家自然科学基金资助项目(批准号50276056)。

摘　　要：分析和评价了现有的估算梯度功能材料(FGM)物性参数的几种方法,提出了实测法和复合法则法相结合估算FGM物性参数的方法———参数修正法,以及根据若干实测点推定物性参数的方法。用这些方法对新研制的碳陶梯度功能材料C/C/Al2O3的热导率和比热容进行了分析计算,并通过比较计算结果,找出了实用性和可操作性较强的方法。Based on appraisal of several methods used to estimate the physical properties of functional gradient materials(FGM),the parameter correction method combining the measuring method with the law of compound average was put forward,and other method determining physical properties of FGM according to several measuring points was also obtained.The thermal conductivity and the specific heat capacity of a new C-ceramic material of FGM-C/C/Al_2O_3 were calculated .Through comparing the calculated results,it is shown that the methods have better practicability and disposibility.

关 键 词：梯度功能材料 物理性质 参数修正法 陶瓷基复合材料 实测法 

分 类 号：TB34[一般工业技术—材料科学与工程]