AMORPHOUS MATERIALS BASED ON CALCIUM PHOSPHATES.

Autor: Sinyayev, Vladimir A., Shystikova, Elena S., Batyrbayeva, Aigul A., Sharipov, Kamalidin O.
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Zdroj: Journal of Chemical Technology & Metallurgy; 2019, Vol. 54 Issue 3, p643-649, 7p
Abstrakt: The composition and structure of calcium phosphate substances formed from aqueous solutions as a result of the exchange reactions between sodium monohydrogen phosphate and calcium chloride in the presence of the inhibitor of hydroxyapatite crystallization - sodium diphosphate are studied. The behavior and the transformations of the materials under heating up to 1000°C are studied. The optimal conditions of amorphous materials formation are established. A maximum amount of amorphized substances is formed in case calcium chloride is used together with solutions containing both monohydrogen phosphate and 20% - 40 mol % of diphosphate at pH 7 - 8. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index