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Structural Ceramic Incorporating Boron Carbide Whiskers for the Strengthening Thereof
Materials Science and Engineering Faculty Research & Creative Works
  • P. D. Ownby, Missouri University of Science and Technology
  • J. Liu
Abstract
Ceramic composites, and in particular structural ceramic composites, have enhanced strength, toughness and abrasion resistance due to the presence of up to about 40 volume percent of relatively large boron carbide whiskers. Although whiskers of various sizes were studied, those of particular interest are whiskers having an average diameter greater than about 3 micrometers, and particularly about 5 to about 8 micrometers, with an average aspect ratio of about 50. Due to the larger size, which had been predicted to be detrimental, there is less respiratory health risk when using these whiskers in the manufacturing of thse improved ceramic composites. Since boron carbide whiskers have many properties superior to silicon carbide whiskers, the most common strengthening agent, the findings should lead to several improved ceramic composites.
Department(s)
Materials Science and Engineering
Patent Application Number
07/750,490
Patent Number
5162270
Document Type
Patent
Document Version
Citation
File Type
text
Language(s)
English
Publication Date
11-1-1992
Citation Information
P. D. Ownby and J. Liu. "Structural Ceramic Incorporating Boron Carbide Whiskers for the Strengthening Thereof" (1992)
Available at: http://works.bepress.com/p_ownby/183/