| 摘要 |
<p>A synthetic bioceramic composition is disclosed which comprises calcium phosphosilicate (CPS, Ca10(PO4)4(SiO4)2), where the CPS phase is the predominant phase. The secondary phases may be one of hydroxyapatite, silicate-substituted hydroxyapatite, alpha-tricalcium phosphate, beta-tricalcium phosphate, brushite, monetite, tetracalcium phosphate, octacalcium phosphate, calcium pyrophosphate, calcium silicate, calcium oxide, calcium carbonate, amorphous calcium phosphate glass, amorphous calcium silicate glass or amorphous calcium phosphor-silicate glass. Also disclosed is a process for forming a bioceramic composition which comprises an aqueous precipitation step or steps involving mixing calcium or a calcium-containing compound, a phosphorus-containing compound and a silicon-containing compound at an alkali pH; and heating the collected product produced by the aqueous precipitation step or steps.</p> |
