Chapter 21. The Effect of Oxide Additives in Filler Materials during Directed Melt Oxidation Process

  1. John B. Wachtman Jr.
  1. Sung Lee and
  2. Do Kyung Kim

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313008.ch21

A Collection of Papers Presented at the 14th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 7/8

A Collection of Papers Presented at the 14th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 7/8

How to Cite

Lee, S. and Kim, D. K. (1990) The Effect of Oxide Additives in Filler Materials during Directed Melt Oxidation Process, in A Collection of Papers Presented at the 14th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 11, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313008.ch21

Author Information

  1. Materials Development Center Agency for Defense Development Taejon, 300-600 Korea

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1990

ISBN Information

Print ISBN: 9780470374924

Online ISBN: 9780470313008

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Keywords:

  • SiC;
  • oxidation;
  • ceramic-matrix composites;
  • potential;
  • oxidation

Summary

Two filler materials (SiC and Al2O3 particulate)-reinforced Al2O3/Al ceramic-matrix composites are formed by directed oxidation of a molten Al alloy. The process involves the directed oxidation reaction of a molten commercial Al alloy (Lanxide®) with filler materials containing oxide additives (SiO2 and SnO2 to yield an Al2O3/Al matrix material. Oxide additives are reduced to metal phases in the resultant matrix of composites and accelerate the oxidation process. Microstructures and phase constitutions of the composites fabricated with different filler materials and additives are presented.