AN EXPERIMENTAL-METHOD FOR STUDYING THERMAL TRANSPORT IN CONDENSED MATTER

被引：2

作者：

HIKI, Y ^{[1
]}

TAKAHASHI, H ^{[1
]}

KOGURE, Y ^{[1
]}

机构：

[1] NISHI TOKYO UNIV,FAC SCI & ENGN,YAMANASHI 40901,JAPAN

来源：

PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES | 1993年 / 69卷 / 03期

关键词：

THERMAL CONDUCTIVITY; THERMAL DIFFUSIVITY; DYNAMIC MEASURING METHOD; SUPERIONIC CONDUCTING GLASS; PHONON CONDUCTION;

D O I：

10.2183/pjab.69.51

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A method called the ''multicurrent'' transient hot-wire method has been developed for measuring thermal conductivity and diffusivity simultaneously and with accuracy. The method can be applied to specimen materials in liquid and solid states, and can be used with a wide range of temperatures. The principle of the hot-wire method is to measure the time variation in the temperature of an electrically heated wire enclosed in a specimen by utilizing the wire as a resistance thermometer. By using various electric heating current values, the convenience and accuracy of the method are greatly improved. As an example of this type of measurement, superionic conducting glass (AgI)0.5(AgPO3)0.5 was chosen as specimen material, and the thermal conductivity and diffusivity were measured in a temperature range including the glass transition. The experimental results are analyzed and briefly discussed on the basis of the gas kinetics theory of phonon conduction in solids.

引用

页码：51 / 54

页数：4

共 4 条

[1]

Carslaw H. S., 1986, CONDUCTION HEAT SOLI

[2]

HIKI Y, 1993, IN PRESS 7TH P INT C

[3]

KOGURE Y, 1973, JPN J APPL PHYS, V12, P814, DOI 10.1143/JJAP.12.814

[4] LOW-TEMPERATURE THERMAL-DIFFUSIVITY MEASUREMENT BY LASER-FLASH METHOD [J].