Abstract—

Si-containing calcium phosphates have been synthesized. The synthesized solid phases have been investigated by X-ray diffraction analysis, IR spectroscopy, and optical microscopy. SThe specific surface areas of the samples are determined by the Brunauer–Emmett–Teller (BET) method. It is shown that an increase in the concentration of silicate ions in the starting reaction solution decreases the content of phosphate ions in the composition of synthesized samples (which is indicative of possible isomorphic substitution by silicate ions). Dynamic dissolution is carried out, and the dissolution rates of solid phases with different contents of silicate ions before and after thermal treatment are compared. It is established that heat treatment of the samples leads to the formation of a mixture of Si-containing hydroxylapatite and β-tricalcium phosphate.

中文翻译：

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含硅磷酸钙的合成及热稳定性

摘要-

已经合成了含硅的磷酸钙。合成的固相已通过X射线衍射分析，IR光谱和光学显微镜进行了研究。S样品的比表面积通过Brunauer-Emmett-Teller（BET）方法确定。结果表明，起始反应溶液中硅酸根离子浓度的增加降低了合成样品组合物中磷酸根离子的含量（这表明可能被硅酸根离子同构取代）。进行动态溶解，并比较热处理前后具有不同硅酸根离子含量的固相的溶解速率。已经确定，样品的热处理导致形成含硅的羟基磷灰石和β-磷酸三钙的混合物。