Surface Tension Measurement of Molten Metal using A Falling Droplet in A Short Drop Tube

Matsumoto Taihei, Fujii Hidetoshi, Ueda Takaharu, Kamai Masayoshi, Nogi Kiyoshi

doi:10.18910/7099

Description

A drop tube-type short time microgravity system was developed to measure the surface tension of high temperature melts using an oscillating drop method. The oscillation of a falling droplet was precisely recorded using the combination of a line sensor and a laser backlight. The surface oscillation of the droplet was quite simple during the falling, and consequently, the surface tension was calculated using Rayleigh's equation. The measurements were carried out over a wide temperature range including the undercooling state. The obtained surface tension of copper is expressed as below. γ=1257-0.20 (T-1356) (mN/m) (T:1287K-1998K)

Journal

Transactions of JWRI

Transactions of JWRI 34 (2), 29-33, 2005-12

Joining and Welding Research Institute, Osaka University

Keywords

Details 詳細情報について

CRID: 1390294252778950528

NII Article ID: 120004841294

NII Book ID: AA00867058

DOI: 10.18910/7099

HANDLE: 11094/7099

ISSN: 03874508

Text Lang: en

Article Type: departmental bulletin paper

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