Reinforcement of Hydroxyapatite Bioceramic by Addition of Ti3SiC2

• Published in: Journal of the American Ceramic Society Vol. 89; no. 2; pp. 743 - 745
• Main Authors: Shi, Sui Lin, Pan, Wei, Fang, Ming Hao, Fang, Zhen Yi
• Format: Journal Article
• Language: English
• Published: Malden, USA Blackwell Science Inc 01.02.2006; Blackwell; Wiley Subscription Services, Inc
• Subjects: Applied sciences; Biological and medical sciences; Building materials. Ceramics. Glasses; Ceramic industries; Ceramics; Cermets, ceramic and refractory composites; Chemical industry and chemicals; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Materials science; Mechanical properties; Medical sciences; Miscellaneous; Other materials; Physics; Plasma sintering; Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects); Specific materials; Technical ceramics; Technology. Biomaterials. Equipments. Material. Instrumentation; Ceramic matrix composite; Scanning electron microscopy; Plasma; Property composition relationship; Mechanical properties; Ceramic biomaterials; Hydroxyapatite; Dispersion reinforced material; Experimental study; Oxide ceramics; Composite material; Titanium carbide; Calcium Hydroxides phosphates; Silicon Titanium Carbides Mixed; Spark discharge; Silicon carbide; Sintering; Technical ceramics; Biomaterial; Manufacturing; Microstructure
• ISSN: 0002-7820; 1551-2916
• DOI: 10.1111/j.1551-2916.2005.00764.x

Ti3SiC2/HAp composites with different Ti3SiC2 volume fractions were fabricated by spark plasma sintering (SPS) at 1200°C. The effects of Ti3SiC2 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 Ti3SiC2 content, whereas the Vickers hardness decreased. The bending strength and fracture toughness reached 252±10 MPa and 3.9±0.1 MPa·m1/2, respectively, with the addition of 50 vol% Ti3SiC2. The increases in the mechanical properties were attributed to the matrix strengthening and interactions between cracks and the Ti3SiC2 platelets.