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Application of ring method to measure surface tensions of liquids in high magnetic field
Chuanjun Li1, Long Chen, Zhongming Ren
1Shanghai Key Laboratory of Modern Metallurgy & Materials Processing and School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China.
Abstract:
The high-magnetic-field tensiometer (HMFT) has been developed to measure surface tensions of liquids in high magnetic field based on the ring method. The HMFT was composed of three parts: weighing system, liquid circulatory system, and supporting system. Some improvements for the conventional tensiometer were made in order to overcome the magnetic effects. The surface tension of acetone was measured using the HMFT. The results showed that the surface tension of acetone linearly varied with the magnetic field intensity and increased by 0.69 mN m(-1) or 2.9% in the magnetic field of 10 T. The HMFT could better determine the surface tension of liquids with and without the magnetic field and it provided a simple and practical way to measure the surface tension of liquids at room temperature in a high magnetic field.
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