Chapter 75. Controlled Combustion Synthesis in the Ti-B System

  1. J. P. Singh
  1. Z. X. Peng and
  2. S. B. Bhaduri

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch75

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Peng, Z. X. and Bhaduri, S. B. (1997) Controlled Combustion Synthesis in the Ti-B System, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch75

Author Information

  1. Department Metallurgical and Mining Engineering, University of Idaho, Moscow, ID 83844-3024, USA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

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Keywords:

  • thermodynamic;
  • x-ray diffraction;
  • combustion;
  • consolidation;
  • exothermic

Summary

Controlled combustion synthesis in the propagating mode was carried out in the Ti-B binary system. Compositions of 82, 85 and 88 wt.% Ti (the rest being boron) were studied. Thermodynamic calculations were performed to investigate theoretically how the exothermicity of such reactions can be controlled. Pellets were pressed from the constituent powders, degassed and ignited in a reaction chamber. Differential thermal analyses (DTA) were performed on these compositions. The as-reacted pellets were examined using scanning electron microscopy (SEM) and x-ray diffraction (XRD). The results showed that the microstructure contained free Ti along with various Ti-borides, particularly TiB. It is believed that the presence of molten Ti during the SHS-process leads to low porosity and potential for net shape processing.