Measurement of the surface tension of liquid Ga, Bi, Sn, in and Pb by the constrained drop method

Toshihiro Tanaka, Masashi Nakamoto, Ryosuke Oguni, Joonho Lee, Shigeta Hara

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The effect of the droplet size on the accuracy of surface tension measurement by the sessile drop method is discussed for liquid metals through a simulation by using the Laplace equation. It is found that with increasing size of the droplet, a higher accuracy of the measured value of the surface tension can be obtained. In order to make a large droplet of liquid metals, the constrained drop method with a special crucible shape was applied to measure the surface tension of liquid Ga, Sn, Bi, In, and Pb. The uncertainty of the measured surface tension was within 1 %. The temperature dependences of the surface tension of liquid Ga, Sn, Bi, In, and Pb were obtained in the present experiment as follows: Ga: σGa = 737 - 0.062T mN/m (823 ≤ T ≤ 993K) Sn: σSn = 579 - 0.066T mN/m (723 ≤ T ≤ 993K) Bi: σBi = 417 - 0.070T mN/m (773 ≤ T ≤ 873K) In: σIn = 600 - 0.082T mN/m (673 ≤ T ≤ 993K) Pb: σPb = 499 - 0.089T mN/m (757 ≤ T ≤ 907K).

Original languageEnglish
Pages (from-to)818-822
Number of pages5
JournalZeitschrift fuer Metallkunde/Materials Research and Advanced Techniques
Volume95
Issue number9
Publication statusPublished - 2004 Sep 1
Externally publishedYes

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Surface tension
interfacial tension
Liquids
liquids
liquid metals
Liquid metals
Laplace equation
Crucibles
crucibles
temperature dependence
simulation
Experiments
Temperature

Keywords

  • Capillary constant
  • Large drop method
  • Sessile drop method

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Measurement of the surface tension of liquid Ga, Bi, Sn, in and Pb by the constrained drop method. / Tanaka, Toshihiro; Nakamoto, Masashi; Oguni, Ryosuke; Lee, Joonho; Hara, Shigeta.

In: Zeitschrift fuer Metallkunde/Materials Research and Advanced Techniques, Vol. 95, No. 9, 01.09.2004, p. 818-822.

Research output: Contribution to journalArticle

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AU - Nakamoto, Masashi

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AU - Hara, Shigeta

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