基于反射率的动高压加载下温度测量方法

项目名称： 基于反射率的动高压加载下温度测量方法

项目编号： No.11302204

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 张永强

作者单位： 中国工程物理研究院流体物理研究所

项目金额： 25万元

中文摘要： 金属材料的光反射特性由电导率、介电常数等物理量决定。在动高压加载下，金属材料的电导率、介电常数等将发生变化，使得材料的光反射特性也随之变化。研究金属材料在动高压加载下的光反射特性，进行材料温度与反射率关系的准确标定，极有可能发展一种适用于冲击加载下室温到1500K温度范围内，以及准等熵压缩下材料温度的测试技术。本项目将从理论和实验两方面研究金属材料在动高压加载下的光反射特性，建立理论模型，制备样品进行温度与反射率关系的定标实验，给出温度与反射率的定标关系，开展材料动高压加载实验，基于定标关系获取温度数据。

中文关键词： 动高压；准等熵压缩；温度测量；反射率；

英文摘要： The light reflective characteristics of metal material are determined by electrical conductivity, dielectric constant and so on. Under dynamic high pressure, electric conductivity and dielectric constant of metal material will be changed, therefore the light reflective characteristics of metal will also be changed. Research on the reflective characteristics of metal material under dynamic high pressure，and performing the calibration experiments on the relation between temperature and reflectivity,it is very capable of developing a new method for the temperature measurement, which is used from room temperature to 1500K in shock loading condition, and the quasi-isentropic compression condition.In this project, the light reflective characteristics of metal material under dynamic high pressure loading will be studied both theoretically and experimentally. It includes to build theoretic model, to prepare experimental samples, to perform the calibration experiments, to establish the relation between temperature and reflectivity, to perform the dynamic high pressure loading experiments, and to obtain the temperature data based on the relation between temperature and reflectivity.

英文关键词： Dynamic high pressure；Quasi isentropic compression；Temperature measurement；Reflectivity；