Torsion Pendulum Method in Viscosity Measurement of Melts

Chin. Phys. Lett.

1995, Vol. 12

Issue (11): 641-644 DOI:

Original Articles

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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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.

Keywords: 06.20.Dk 51.20.+d 61.50.Cj

Published: 01 November 1995

PACS:	06.20.Dk	(Measurement and error theory)
	51.20.+d	(Viscosity, diffusion, and thermal conductivity)
	61.50.Cj

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1995/V12/I11/0641

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