Glass reinforced hydroxyapatite for hard tissue surgery--part 1: Mechanical properties.
作者： G. Georgiou , J.C. Knowles
DOI: 10.1016/S0142-9612(01)00025-4
关键词:
摘要: Commercial hydroxyapatite (HA) was reinforced by adding 2.5 and 5wt% of a Na2O-CaO-P2O5 glass then sintered. The resulting composites have chemical compositions that are similar to the inorganic constituent mineral part bone, closely related trace elements present, in this case Na. X-ray diffraction showed no decomposition HA secondary phases; however, reinforced-HA contained phase variable amounts tricalcium phosphate phase, depending on sintering temperature amount added. HA-composite material exhibited higher flexural strength overall compared sintered HA. presence phases beta- alpha -tricalcium microstructure has major influence mechanical properties. Additionally, porosity also bearing properties material. (C) 2001 Elsevier Science Ltd. All rights reserved.
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