TRANSIENT HOT-STRIP METHOD FOR SIMULTANEOUSLY MEASURING THERMAL-CONDUCTIVITY AND THERMAL-DIFFUSIVITY OF SOLIDS AND FLUIDS

被引:306
作者
GUSTAFSSON, SE [1 ]
KARAWACKI, E [1 ]
KHAN, MN [1 ]
机构
[1] QUAID I AZAM UNIV,DEPT PHYS,ISLAMABAD,PAKISTAN
关键词
D O I
10.1088/0022-3727/12/9/003
中图分类号
O59 [应用物理学];
学科分类号
摘要
A transient hot-strip method has been developed for use with solids and fluids with low electrical conductivity. The hot strip (thin metal foil) is used both as a constant plane heat source and a sensor of the temperature increase. The accuracy of the method is so good that it might even be used for the measurement of the specific heat especially under difficult experimental conditions when the standard methods cannot be used or would be very inconvenient. This method has been tested in measurements on fused quartz, glycerine and Araldite at room temperature. The experimental conditions that cause deviations from the mathematical solution of the thermal conductivity equation are discussed and estimates for their maximum influence on the measured quantities are given.
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页码:1411 / 1421
页数:11
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