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Tetracalcium phosphate: Synthesis, properties and biomedical applications.

机译:磷酸四钙:合成,性质和生物医学应用。

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Monoclinic tetracalcium phosphate (TTCP, Ca(4)(PO(4))(2)O), also known by the mineral name hilgenstockite, is formed in the (CaO-P(2)O(5)) system at temperatures>1300 degrees C. TTCP is the only calcium phosphate with a Ca/P ratio greater than hydroxyapatite (HA). It appears as a by-product in plasma-sprayed HA coatings and shows moderate reactivity and concurrent solubility when combined with acidic calcium phosphates such as dicalcium phosphate anhydrous (DCPA, monetite) or dicalcium phosphate dihydrate (DCPD, brushite). Therefore it is widely used in self-setting calcium phosphate bone cements, which form HA under physiological conditions. This paper aims to review the synthesis and properties of TTCP in biomaterials applications such as cements, sintered ceramics and coatings on implant metals.
机译:在(CaO-P(2)O(5))系统中,在温度>的条件下,形成了单斜晶磷酸四钙(TTCP,Ca(4)(PO(4))(2)O),也被称为矿物名称hilgenstockite。 1300摄氏度。TTCP是唯一的Ca / P比大于羟磷灰石(HA)的磷酸钙。它在等离子喷涂HA涂料中作为副产物出现,当与酸性磷酸钙(如无水磷酸氢二钙(DCPA,三菱沸石)或磷酸氢二钙二水合物(DCPD,透钙磷石))结合使用时,具有适度的反应性和同时溶解性。因此,它被广泛用于自固化的磷酸钙骨水泥,在生理条件下形成HA。本文旨在综述TTCP在生物材料应用中的合成和性能,例如水泥,烧结陶瓷和植入金属上的涂层。

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