Thermal conductivity, thermal diffusivity, and specific heat of thin samples from transient measurements with hot disk sensors

Review of Scientific Instruments - Tập 65 Số 12 - Trang 3856-3859 - 1994
Mattias Gustavsson1, Ernest Karawacki1, Stefan Gustafsson1
1Department of Physics, Chalmers Institute of Technology, University of Gothenburg, S-412 96 Gothenburg, Sweden

Tóm tắt

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.

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Tài liệu tham khảo

1991, Meas. Sci. Technol., 2, 744, 10.1088/0957-0233/2/8/007

1992, Rev. Sci. Instrum., 63, 4390, 10.1063/1.1143739

1991, High Temp.-High Press., 23, 215

1991, Rev. Sci. Instrum., 62, 797, 10.1063/1.1142087

1991, High Temp.-High Press., 23, 289

1979, J. Phys. D: Appl. Phys., 12, 1411, 10.1088/0022-3727/12/9/003

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Thông tin xuất bản

Review of Scientific Instruments

Tập 65 Số 12

3856-3859

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