High Temperature Behaviour of Liquid Phase Sintered Silicon Carbide

  1. Prof. Dr. G. Müller
  1. Giuseppe Magnani,
  2. Gian Loris Minoccari and
  3. Luigi Pilotti

Published Online: 27 APR 2006

DOI: 10.1002/3527607293.ch32

Ceramics - Processing, Reliability, Tribology and Wear, Volume 12

Ceramics - Processing, Reliability, Tribology and Wear, Volume 12

How to Cite

Magnani, G., Minoccari, G. L. and Pilotti, L. (2000) High Temperature Behaviour of Liquid Phase Sintered Silicon Carbide, in Ceramics - Processing, Reliability, Tribology and Wear, Volume 12 (ed G. Müller), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527607293.ch32

Editor Information

  1. Fraunhofer-Institut für Silicatforschung, Neunerplatz 2, 97082 Würzburg, Germany

Author Information

  1. ENEA-Innovation Department–Faenza Research Centre, Faenza (RA), Italy

Publication History

  1. Published Online: 27 APR 2006
  2. Published Print: 27 JUN 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301942

Online ISBN: 9783527607297

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Keywords:

  • ceramics;
  • liquid phase sintered silicon carbide;
  • high temperature behavior

Summary

Liquid phase sintering process of silicon carbide allows to obtain dense sample at lower temperature than solid state process with reduced grain growth and improved mechanical properties. In this paper mechanical properties at RT and at high temperature of liquid phase sintered silicon carbide (LPSSC) was determined. Flexural strength measurements were conducted by means of four-point bend tests in the range RT-1400 °C. Flexural strength changed from 532 MPa at RT to 240 MPa at 1400 °C. SEM analysis showed that this behaviour is due to superficial oxidation of SiC and formation of yttrium silicate which create bubbles and cavities.