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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 7    No. 1    March 1997

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FABRICATION OF Al2O3 BASED CERAMIC MOLD FOR CERAMIC PROCESSING
Liu Yong; Huang Baiyun; Zhou Kechao; He Yuehui

Powder Metallurgy Research Institute; Central South University of Technology; Changsha 410083

Abstract:Fabrication of Al2O3 based ceramic mold was discussed in details. Powder additives(TiO 2 and MgO) and fine Al2O3 powders were used to decrease sintering temperature, special dewaxing method and careful control on sintering were explored to prevent cracking and distortion of ceramic mold. Through those efforts, qualified Al2O3 ceramic mold with complex inside shape was successfully fabricated, in addition, this process can also be applied to the fabrication of other ceramic component with complex inside shape.

 

Key words: aluminia near net shaping powder metallurgy

ISSN 1672-7029
CN 43-1423/U

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