Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 527, Issue 18-19, Pages 4723-4726Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2010.04.034
Keywords
cBN; beta-SiAlON; Composites; Spark plasma sintering; Microstructure; Mechanical properties
Categories
Funding
- National Natural Science Foundation of China [50632020]
- Science Fund for Distinguished Young Scholars of Heilongjiang Province [JC200603]
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cBN/beta-SiAlON composites with different cBN contents were fabricated by spark plasma sintering (SPS) process. The densification, thermal stability of cBN, microstructure and mechanical properties of the resultant composites were investigated. The addition of cBN particles to beta-SiAlON could increase the Vickers hardness, flexural strength and fracture toughness of beta-SiAlON. It is attributed to the high density, no obvious cBN to hBN transformation and good interface bonding between cBN grains and beta-SiAlON matrix. (C) 2010 Elsevier B.V. All rights reserved.
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