발간논문

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Vol.15, No.1, 24 ~ 30, 1977
Title
The Activated Sintering of Tungsten
안상호Sang Ho Ahn, 이동녕Dong Nyung Lee
Abstract
Sintering of wire was performed to define the material transport path in nickel activated sintering of tungsten. After sintering at the temperature range of 1000℃ to 1200℃ in a hydrogen atmosphere the neck growth was measured and the inverse slope of log (r/a) vs. log t plot was turned out to be approximately 7.7, where r, a and t are the neck radius, and wire radius, and sintering time respectively. The activation energy for the sintering was estimated to be about 40 ㎉/mole which is considerably less than that for sintering of pure tungsten. The present results seem to support grain boundary diffusion mechanism in nickel activated sintering.
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