2005•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access

Surface Tension of Molten Ni and Ni-Co Alloys

FengXIAO, LiangFANG, KiyoshiNOGI

Abstract

Surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys was measured at the temperature range of 1773～1873 K using an improved sessile drop method with an alumina substrate in an Ar+3％H2 atmosphere. The error of the data obtained was analyzed. The surface tension of molten Ni and Ni-Co (5 and 10 mass fraction) alloys decreases with increasing temperature. The influence of Co on the surface tension of Ni-Co alloys is little in the studied Co concentration range.

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Key concepts: Surface tension, Materials science, Metallurgy, Drop (telecommunication), Mass fraction, Atmospheric temperature range, Maximum bubble pressure method, Sessile drop technique