Preparation and Properties of Al2O3/Ti3SiC2 Multilayer Materials

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Journal of Materials Engineering ›› 2003, Vol. 0 ›› Issue (9) : 15-17,21.

Preparation and Properties of Al₂O₃/Ti₃SiC₂ Multilayer Materials

ZAN Qing-feng, WANG Chang-an, HUANG Yong, LI Cui-wei, ZHAO Shi-ke

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Abstract

The Al₂O₃/Ti₃SiC₂ multilayer materials were prepared by two methods. One is the in situ HP that means the Ti₃SiC₂ layer is in situ synthesized from the Ti, SiC and C powders during the preparation of the multilayer materials; the other is multistep that the pre-synthesized Ti₃SiC₂ powders are used to prepare multilayer materials. For the Al₂O₃/Ti₃SiC₂ multilayer materials by the two methods, work of fracture was improved by over tenfold than Al₂O₃ materials as well flexural strength keeping above 450MPa. Moreover,the different composition and microstructure was obtained by different preparation procedure, and of course some difference in mechanical properties also existed, such as the flexural strength of the multilayer materials by in situ HP was higher and the toughness was lower.

Key words

Al₂O₃/Ti₃SiC₂ / multilayer / in situ / hot pressing

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ZAN Qing-feng, WANG Chang-an, HUANG Yong, LI Cui-wei, ZHAO Shi-ke. Preparation and Properties of Al₂O₃/Ti₃SiC₂ Multilayer Materials[J]. Journal of Materials Engineering, 2003, 0(9): 15-17,21

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