Thermal Diffusivity Measurement of Abrasive Paper Using Photoacoustic Technique
Measurements of thermal diffusivity of two types of abrasive papers are reported. We have chosen silicon carbide and aluminium oxide abrasive papers as our samples. Thermal diffusivity of silicon carbide abrasive paper with the grit size of 320,360,400, 600, 800, 1000, 1200, and 1500 were measure...
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| 格式: | Article |
| 語言: | English English |
| 出版: |
Universiti Putra Malaysia Press
2003
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| 在線閱讀: | http://psasir.upm.edu.my/id/eprint/3831/1/Thermal_Diffusivity_Measurement_of_Abrasive_Paper.pdf |
| 總結: | Measurements of thermal diffusivity of two types of abrasive papers are reported.
We have chosen silicon carbide and aluminium oxide abrasive papers as our
samples. Thermal diffusivity of silicon carbide abrasive paper with the grit size
of 320,360,400, 600, 800, 1000, 1200, and 1500 were measured. On the other
hand, only two grit size (120 and 240) of aluminium oxide abrasive papers were
chosen in the present experiments. All the measurements were carried out at
room temperature with the abrasive surface facing the laser beam. The
effective thermal diffusivity values obtained for silicon carbide are in the range
of (5.1 - 8.9) x 10-2 cm2/s, which is lower than the value of thermal diffusivity
of pellet ceramic silicon carbide prepared from silicon carbide powder. For
aluminium oxide abrasive papers the effective value of thermal diffusivity
(0.18 cm2/s dan 0.35 cm2/s) is higher than the value reported for aluminium
oxide ceramic. The surface structure of the sample was investigated using SEM
with the magnification of 100X. |
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