Chapter 90. SiC-Skeleton Cemented Diamond a Novel Engineering Material with Unique Properties

  1. Todd Jessen and
  2. Ersan Ustundag
  1. Sergey K. Gordeev1,
  2. Sergey G. Zhukov1,
  3. Liya V. Danchukova1,
  4. Thommy Ekström2 and
  5. Jie Zheng2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294628.ch90

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3

How to Cite

Gordeev, S. K., Zhukov, S. G., Danchukova, L. V., Ekström, T. and Zheng, J. (2000) SiC-Skeleton Cemented Diamond a Novel Engineering Material with Unique Properties, in 24th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: A: Ceramic Engineering and Science Proceedings, Volume 21, Issue 3 (eds T. Jessen and E. Ustundag), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294628.ch90

Author Information

  1. 1

    Central Research Institute for Materials 8 Paradnaya Street, Saint Petersburg, 191014, Russia

  2. 2

    Dept. of Materials Science and Engineering, Royal Institute of Technology, S-100 44 Stockholm, Sweden

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2000

ISBN Information

Print ISBN: 9780470375686

Online ISBN: 9780470294628

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Keywords:

  • cemented diamond;
  • composite material;
  • chemical reactions;
  • microstructure;
  • sintered

Summary

SiC-skeleton cemented diamond (ScD) is a new type of composite material prepared by means of chemical reactions with a superb combination of properties. The research has shown that depending on concentration of diamond and SiC (which are controllable) Elastic modulus ranges within 550–700 GPa at overall low densities 3.1–3.3 g/ccm can be obtained. The materials have Knoop hardness 50–55 GPa. The thermal conductivity of the composite is up to 500 W/mK, which is superior to that of copper. The explanation for this combination of good properties is found in the microstructure of the materials, which comprises a rigid SiC matrix reinforced by diamond particles. In tests the apparent abrasion and erosion wear resistance is greater than SiC ceramics. The production technology of ScD is net shaping, which provides for easy large-scale production of parts, not only with very complex shapes, but also with large sizes. That is why we claim that it is an example of new group of materials: Engineering Diamond Materials.