Journal of Inorganic Materials

• Research Paper • Previous Articles     Next Articles

Rapid Fabrication of Nano-structured Ti5Si3-TiC Composites by Spark Plasma Sintering

WANG Lian-Jun; JIANG Wan; BAI Sheng-Qiang; WANG Gang; CHEN Li-Dong   

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China
  • Received:2003-11-23 Revised:2004-03-31 Published:2004-11-20 Online:2004-11-20

Abstract: Nano Ti5Si3-TiC composites were in situ fabricated through spark plasma sintering (SPS) technique using Ti and SiC powders
without any additive. The phase constituent of the samples was analyzed by X-ray diffraction techniques and microstructures
were observed by scanning electron microscope and transmission electron microscope. The fracture toughness at room temperature
was also measured by indentation tests. The results show that the Ti5Si3-TiC composite can be fabricated by means of the
reactive sintering method in a relatively short time (8 min) and at a lower temperature (1260℃), with a fine microstructure (TiC grain size <200nm).

Key words: nano-structured, in situ reactive sintering, composites

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