| 摘要 |
PURPOSE:To surely pulverize a ceramic powder raw material and to obtain fine particles by enclosing the ceramic powder and a highly volatile polar compound into hermetically closed pulverizing vessel and executing dry pulverization by using the pulverizing medium. CONSTITUTION:The ceramic powder and the highly volatile polar substance are enclosed into the hermetically closed pulverization vessel housing the pulverizing medium and executing dry pulverization by using the pulverizing medium. As the highly volatile polar compound, an alcohol such as methanol, ethanol, isopropyl alcohol or an ether such as dimethyl ether, diethyl ether is used. Addition of 0.001-10wt. part highly volatile polar substance per 100wt. part ceramic powder is preferable. By this means, the ceramic powder is surely pulverized into fine particles. |
