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Advanced Real Time Imaging II pp 3–11Cite as

A Novel Method of Surface Tension Test for Melt Slags Based on Hot Thermocouple Technique

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Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

Abstract

Currently, the sessile drop method and the maximum bubble method are widely used to measure the surface tension of melt slags. For the above methods, the slow heating rate of furnace decreases the test efficiency. The hot thermocouple technique is widely used in the measurement of the high-temperature performance of molten slags. The slag will form droplets on the thermocouple due to the capillarity, and based on the rapid heating-up and Young’s equation, this study used the Single Hot Thermocouple Technique (SHTT) for the test of CaO–SiO2–Al2O3 (CSA) and the CaO–SiO2–Al2O3–MgO (CSAM) slag systems. The results show that the interfacial tension between the CSA, CSAM slags and the thermocouple is 2117.76–2131.89 mN/m at 1500 °C. The surface tension of the CSA, CSAM slags can be obtained by Young’s equation. Compared with the surface tension measured by the standard test, the SHTT surface tension test error is within 5%.

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Acknowledgements

The authors greatly appreciate the funding from the National Natural Science Foundation of China (Grant No. 51574050).

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Authors and Affiliations

  1. College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, People’s Republic of China

    Zhe Wang, Guanghua Wen, Ping Tang & Zibing Hou

Authors
  1. Zhe Wang
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  2. Guanghua Wen
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  3. Ping Tang
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  4. Zibing Hou
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Corresponding author

Correspondence to Guanghua Wen .

Editor information

Editors and Affiliations

  1. National Energy Technology Laboratory/Leidos, Albany, OR, USA

    Jinichiro Nakano

  2. Carnegie Mellon University, Pittsburgh, PA, USA

    P Chris Pistorius

  3. The University of Kansas, Lawrence, KS, USA

    Candan Tamerler

  4. Kyoto University, Kyoto, Japan

    Hideyuki Yasuda

  5. South University of Science and Technology, Shenzhen, China

    Zuotai Zhang

  6. McMaster University, Hamilton, ON, Canada

    Neslihan Dogan

  7. Central South University, Changsha, Hunan, China

    Wanlin Wang

  8. Kyushu University, Fukuoka, Japan

    Noritaka Saito

  9. Carnegie Mellon University, Pittsburgh, PA, USA

    Bryan Webler

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© 2019 The Minerals, Metals & Materials Society

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Wang, Z., Wen, G., Tang, P., Hou, Z. (2019). A Novel Method of Surface Tension Test for Melt Slags Based on Hot Thermocouple Technique. In: Nakano, J., et al. Advanced Real Time Imaging II. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-06143-2_1

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