Volatility and oxygen content of tungsten oxide in cemented carbide balls
Volatility and oxygen content of tungsten oxide in cemented carbide balls:
The volatility and oxygen content of tungsten oxide increase together: tungsten trioxide begins to volatilize at 400C, and it volatilizes significantly at 850-950C, with a loss of 0.4%-0.6% per hour; while tungsten dioxide only evaporates at 1050C. Significantly volatile. As we all know, the higher the reduction temperature, or the finer the tungsten trioxide particles at the same temperature, the greater the vapor pressure and the greater the tendency for the particles to grow.
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