Thermal conductivity, thermal diffusivity, and specific heat of thin samples from transient measurements with hot disk sensors
作者:
Mattias Gustavsson,
Ernest Karawacki,
Silas E. Gustafsson,
期刊:
Review of Scientific Instruments
(AIP Available online 1994)
卷期:
Volume 65,
issue 12
页码: 3856-3859
ISSN:0034-6748
年代: 1994
DOI:10.1063/1.1145178
出版商: AIP
数据来源: AIP
摘要:
Transient measurements of thermal conductivity, thermal diffusivity, and specific heat capacity have been performed with hot disk sensors in thin samples of metallic materials. With this new variation of the hot disk method the sample size can be reduced to a volume less than ten cubic centimeters for copper at room temperature. It is also shown that the specific heat capacity can be conveniently measured in transient recordings of slightly longer duration. On comparing with standard values the accuracy turns out to be better than 1% while the precision (standard deviation of the mean from six measurements) on the average is about 0.5% for all values recorded. ©1994 American Institute of Physics.
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