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Torsion Pendulum Method in Viscosity Measurement of Melts |
HONG Xinguo1;LU Kunquan2 |
1Research and Development Laboratory of Scientific Instrument, OSTC, Academia Sinica, Beijing 100081
2Institute of Physics, Academia Sinica, Beijing
100080
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Cite this article: |
HONG Xinguo, LU Kunquan 1995 Chin. Phys. Lett. 12 641-644 |
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Abstract In this paper we present the results of our preliminary study on the improvements of torsion pendulum in order to make it suitable for the viscosity measurement of melt at high temperature. The amplitude features of conventional torsion pendulum and our method have been compared at room temperature and at high temperature, respectively. The relationship between the damping factor and the kinematical viscosity is derived and discussed. The viscous properties of molten KNbO3 and molten Li2B8O13 at high temperatures in air are measured with this method.
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Keywords:
06.20.Dk
51.20.+d
61.50.Cj
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Published: 01 November 1995
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