Powders Mixtures Based on Ammonium Pyrophosphate and Calcium Carbonate for Preparation of Biocompatible Porous Ceramic in the CaO–P2O5 System
- Authors: Safronova T.V.1, Putlyaev V.I.2, Ivanov V.K.2, Knot’ko A.V.1, Shatalova T.B.1
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Affiliations:
- FGBOU VPO M. V. Lomonosov Moscow State University
- FGBUN N. S. Kurnakov Russian Academy of Sciences Institute of General and Inorganic Chemistry
- Issue: Vol 56, No 5 (2016)
- Pages: 502-509
- Section: Article
- URL: https://journals.rcsi.science/1083-4877/article/view/247942
- DOI: https://doi.org/10.1007/s11148-016-9877-x
- ID: 247942
Cite item
Abstract
Powder mixtures are considered containing ammonium hydrophosphate and calcium carbonate intended for preparing biocompatible porous ceramic in the CaO–P2O5 system. Pore formation on heating in workpieces based on the powder mixtures in question occurs due to occurrence of gas liberation in the presence of melt in the NH3–H2O–CO2–CaO–P2O5 or CO2–CaO–P2O5 systems. Gas phase formation is due to liberation of gaseous water and ammonia, thermal hydrolysis of calcium polyphosphate, decomposition of calcium carbonate, and oxidation of carbonized organic compounds remaining within a powder mixture in the form of associated calcium carbonate synthesis reaction product.
About the authors
T. V. Safronova
FGBOU VPO M. V. Lomonosov Moscow State University
Author for correspondence.
Email: t3470641@yandex.ru
Russian Federation, Moscow
V. I. Putlyaev
FGBUN N. S. Kurnakov Russian Academy of Sciences Institute of General and Inorganic Chemistry
Email: t3470641@yandex.ru
Russian Federation, Moscow
V. K. Ivanov
FGBUN N. S. Kurnakov Russian Academy of Sciences Institute of General and Inorganic Chemistry
Email: t3470641@yandex.ru
Russian Federation, Moscow
A. V. Knot’ko
FGBOU VPO M. V. Lomonosov Moscow State University
Email: t3470641@yandex.ru
Russian Federation, Moscow
T. B. Shatalova
FGBOU VPO M. V. Lomonosov Moscow State University
Email: t3470641@yandex.ru
Russian Federation, Moscow