The Mechanical Properties of AlN/BN Laminated Ceramic Composites

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AlN/BN laminated ceramic composites were fabricated using tape-casting and hot-pressing by optimizing the designs of the structure and geometry of AlN/BN laminated ceramic composites. The results showed that the fracture toughness and bending strength for AlN/BN laminated ceramics reached 9.1MPa.m1/2 and 378MPa respectively. The fracture toughness is two times higher than that of AlN monolithic ceramics. The excellent fracture toughness of AlN/BN laminated ceramics could be mainly attributed to crack deflection, delaminating, branching, parallel propagation and crack laminate pilling out at the AlN/BN weak interface.

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Periodical:

Edited by:

Byungsei Jun, Hyungsun Kim, Chanwon Lee, Soo Wohn Lee

Pages:

97-100

DOI:

10.4028/www.scientific.net/MSF.569.97

Citation:

T. Zhang et al., "The Mechanical Properties of AlN/BN Laminated Ceramic Composites ", Materials Science Forum, Vol. 569, pp. 97-100, 2008

Online since:

January 2008

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$35.00

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