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Meeting Materials Science & Technology 2020
Symposium Next Generation Biomaterials
Presentation Title Biocompatible Ceramics Based on Hydrated Calcium Phosphates
Author(s) Tatiana Viktorovna Safronova, Gilyana Kazakova, Otabek Toshev, Andrey Kiselev, Tatyana Shatalova, Irina Selezneva, Vladimir Zaitsev
On-Site Speaker (Planned) Gilyana Kazakova
Abstract Scope Materials based on calcium pyrophosphate Са2Р2О7 with a molar ratio Ca/P=1 and calcium polyphosphate Са(РО3)2 (in an amount up to 50%), having a molar ratio Ca/P=0.5 meet the requirements that necessary for application in regenerative medicine. Calcium phosphates with a molar ratio Ca/P=1 (Са2Р2О7.хН2О, СаНРО4.2Н2О, СаНРО4) synthesized from solutions, in pastes, or in conditions of mechanical activation were used as precursors of calcium pyrophosphate Са2Р2О7. Calcium phosphates with a molar ratio Ca/P=0.5 (Са(РО3)2.хН2О, Са(Н2РО4).Н2О, Са(NH4)2P2O7, СаH2P2O7) were used as precursors of calcium polyphosphate Са(РО3)2. Powder mixture comprising precursors of the calcium pyrophosphate and polyphosphate phases at a given molar ratio in the range 0.5<Ca/P<1 were used for production of ceramic materials in the system Са2Р2О7-Са(РО3)2. The target phases are formed as a result of thermal conversion and as a result of heterophase interaction in the investigated mixtures. The work was supported by RFBR, projects # 18-29-11079, # 20-03-00550.


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