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Correlation between microstructure of tungsten and solid state reaction rate with amorphous carbon film

Miyuki Takamori, Yuji Hatano, Kuniaki Watanabe
unpublished

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Correlation between microstructure of tungsten and rate of carbide formation was investigated at 800 by examining the reaction between amorphous carbon films and tungsten specimens fabricated in different conditions. The carbide formed was W 2 C, and no WC was observed. The growth rate of W 2 C showed no significant dependence on the size and shape of crystal grains. A clear correlation, however, was observed between the hardness of tungsten and the rate of W 2 C growth, and the reaction rate decreased with hardness.
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Miyuki Takamori, Yuji Hatano, Kuniaki Watanabe. "Correlation between microstructure of tungsten and solid state reaction rate with amorphous carbon film."