| 摘要 |
Calcium-strontium-hydroxyphosphate (strontium-apatite-) cement preparations are described, comprising a powder mixture, which contains molar quantities of the components calcium (Ca), strontium (Sr) and phosphate (P) in the mixture in the ranges 1.00<Ca/P<=1.50 and 0<Sr/P<1.5, together with an alkali salt or an ammonium salt of phosphoric acid, and with water and/or an aqueous solution. The powder mixture particularly contains, as the Ca-component, Ca<SUB>3</SUB>(PO<SUB>4</SUB>)<SUB>2 </SUB>(TCP), and as the Sr-component SrHPO<SUB>4 </SUB>and/or Sr<SUB>3</SUB>(PO<SUB>4</SUB>)<SUB>2 </SUB>and optionally additional SrCO<SUB>3</SUB>. As the aqueous mixing solution for the formation of the strontium-apatite cement, an aqueous solution of an alkali salt or an ammonium salt of the phosphoric acid is suitable.
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