DONG Weixia , BAO Qifu , GU Xingyong , HU Keyan , ZHOU Xiuhua

( School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Key Laboratory of Advanced Ceramics of Jiangxi Province, Jingdezhen Jiangxi 333001, China)

Abstract: Anorthite/mullite composites were prepared by solid phase reaction method using anorthite and as -prepared mullite.Effects of process conditions were explored. Results show that sintering at 1400℃ and soaking at 1000℃ for 1h are critical to the bending strength of the composites and that the bending strength of the composites sintered twice is higher than that of the once sintered. XRD and SEM indicate that the composites of anorthite and mullite closely bonded by glass have improved mechanical properties.

Key words: preparation process; mullite/anorthite composite; mechanical properties