Chapter 8. Microstructure and Properties of Al and Si Infiltrated RBSN Composites

  1. John B. Wachtman Jr.
  1. N. A. Travitzky and
  2. N. Claussen

Published Online: 26 MAR 2008

DOI: 10.1002/9780470310557.ch8

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8

How to Cite

Travitzky, N. A. and Claussen, N. (1989) Microstructure and Properties of Al and Si Infiltrated RBSN Composites, in A Collection of Papers Presented at the 13th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 10, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470310557.ch8

Author Information

  1. Technische Universität Hamburg-Harburg Advanced Ceramics Group D-2100 Hamburg 90, FRG

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1989

ISBN Information

Print ISBN: 9780470374863

Online ISBN: 9780470310557

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Keywords:

  • chemical vapor infiltration;
  • high fracture toughness;
  • carbon-carbon composites;
  • fiber-reinforced ceramic composites;
  • thermal gradient-forced flow techniques

Summary

Commercial RBSN has been infiltrated with various metals and metal alloys by a recently developed technique. TEM analyses or composites with Al and Si reveal that practically all open pores >10 nm are filled with metal without detectable reaction with the Si3N4 matrix. Strength Kk and hardness are increased to >500 MPa, >5 MPa · m1/2 and >15 GPa. Wear and corrosion resistance are especially enhanced by nitride or carbide surface sealing.