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《Chinese Journal of Dental Materials and Devices》 1993-04
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A Study on the Mechanical Properties of Hydroxyapatite Ceramics

Chen Demin, Liu Yirong, Xue Miao, Shanghai Biomaterial Research & Test Center  
Hydroxyapatite is the main component of bone and tooth minerals. In this work, hydroxyapatite powders were prepared by dry process from intimate mixtures of Ca_3 (PO_4)_2 and CaCO_3 with molecular fraction ratios of 3:1.2at 1 100~1200℃in steam. After passing through a sieve, this powder was mid--pressed and then sintered in air at 1340~1400℃ for 3 hours. The relative density of obtained ceramics was 96.9%. The Young's modulus, the three -point bending strength and compressive strength of the sintered hydroxyapatite ceramics were 63.4 GPa,62.7 MPa,309.5 MPa respectively. Tile Knoop hardness and Vickers hardness value were 432.2 and 532.2 2 res-pectively.
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【References】
Chinese Journal Full-text Database 1 Hits
1 Zhu Zhongli (Dept. of stomatology in the Second Affiliated Hospital to Zhejiang Medical University, Hangzhou, 310009);Application of Hydroxyapatite Artificial Bones to Operation on Apical Areas[J];BULLETIN OF SCIENCE AND TECHNOLOGY;1996-06
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 Xu Xiaoliang,Tong zhi qin,Wang Kunzhen et al.Department of Orthopedics,The Second Affiliated Hospital of Xi'an Medical University,Xi'an,710004.;Experimental Study of bBMP/Collagen/Coral Composited Bone Substitute in Repairing of Bone Defect of Femoral Head[J];The Journal of Bone and Joint Injury;2000-03
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