▎ 摘　　要

Graphene oxide (GO) reinforced hydroxyapatite (HA) composites with various contents of GO (HA/GO-C) were synthesized with addition of cetyltrimethyl ammonium bromide (CTAB) by a wetchemical precipitation method using diammonium hydrogen phosphate ((NH4)(2)HPO4) and calcium nitrate (Ca(NO3)(2).4H(2)O) as the initial reactants, and their structure, morphology, crystallization, specific surface area were studied by FT-IR, SEM, Raman spectroscopy, XRD and BET. Particularly, the influence of GO addition and appiled load on the friction coefficient of the obtained composites was investigated. Also, the influence of GO addition on microhardness of the composite was evaluated. The results suggested that HA successfully grafted over GO nanosheets whose structure was preserved. The layer spacing of HA/GO-C composite was enlarged by addition of CTAB in synthesis process. The friction coefficient of the composite gradually decreased with increase of GO content in composite and increased with increase in applied load. The microhardness of the composites increased with increase of GO content. The obtained HA/GO-C composites may have a potential application in biomedical engineering.