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Reinforcement of Hydroxyapatite Bioceramic by Addition of Ti 3 SiC 2
Author(s) -
Shi Sui Lin,
Pan Wei,
Fang Ming Hao,
Fang Zhen Yi
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00764.x
Subject(s) - materials science , spark plasma sintering , fracture toughness , composite material , bioceramic , microstructure , flexural strength , vickers hardness test , ceramic , sintering , indentation hardness
Ti 3 SiC 2 /HAp composites with different Ti 3 SiC 2 volume fractions were fabricated by spark plasma sintering (SPS) at 1200°C. The effects of Ti 3 SiC 2 addition on the mechanical properties and microstructures of the composites were investigated. The bending strength and fracture toughness of the composites increased with increasing of Ti 3 SiC 2 content, whereas the Vickers hardness decreased. The bending strength and fracture toughness reached 252±10 MPa and 3.9±0.1 MPa·m 1/2 , respectively, with the addition of 50 vol% Ti 3 SiC 2 . The increases in the mechanical properties were attributed to the matrix strengthening and interactions between cracks and the Ti 3 SiC 2 platelets.