Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Microstructure of in Situ Produced TiC/Ti5Si3 Nanocomposite

LI Jian-Lin; JIANG Dong-Liang; TAN Shou--Hong   

  1. State Key Lab of High Perfoumance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:1999-03-29 Revised:1999-07-21 Published:2000-04-20 Online:2000-04-20

Abstract: The microstructure of in situ produced TiC/Ti5Si3 nanocomposite was studied. The results show
that TiC/Ti5Si3 nanocomposite can be fabricated by reactively hot pressing the mixed powders of SiC and Ti. Almost TiC grains are nanosized, and
there is a small amount of Ti3SiC2 in this nanocomposite. Some elongated Ti3SiC2 grains are located in Ti5Si3 matrix and the rest
Ti3SiC_2 grains in TiC grains. There is no amorphous phase on the grain boundaries of TiC and Ti5Si3 or TiC and Ti3SiC2.
Some monatomic steps can be observed at the grain boundary of TiC and Ti5Si3.

Key words: in situ, TiC, Ti5Si3, nanocomposite

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