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Article
Normal-pressure Hot-pressing of Α-alumina-diamond Composites
Journal of the American Ceramic Society
  • J. Liu
  • P. D. Ownby, Missouri University of Science and Technology
Abstract
α-Alumina-diamond composites have been developed by normal hot-pressing procedures using a conventional pressure of 32 MPa and 1250°C. Heretofore this type of composite has required a pressure of 6 GPa (60 kbar) to prevent the transformation of diamond to graphite. the mechanical properties, density, and thermal expansion coefficient of these composites have been characterized. the fracture toughness (KIc) of alumina shows a considerable increase with the addition of diamond particles. Diamond additions tend to decrease the thermal expansion coefficient of these composites. the composite properties are dependent on the volume fraction of diamond particles.
Department(s)
Materials Science and Engineering
Keywords and Phrases
  • Diamond,
  • Alumina,
  • Composites,
  • Thermal Expansion,
  • Fracture Toughness
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 1991 Wiley-Blackwell, All rights reserved.
Publication Date
1-1-1991
Citation Information
J. Liu and P. D. Ownby. "Normal-pressure Hot-pressing of Α-alumina-diamond Composites" Journal of the American Ceramic Society (1991)
Available at: http://works.bepress.com/p_ownby/163/