Synthesis and Phase Transformations of Compounds in the Mg4Na(PO4)3–Mg3(PO4)2 System as Promising Phases for the Fabrication of Bioceramics

— Phase transformations of the magnesium sodium double phosphates Mg 4 Na(PO 4 ) 3 and MgNaPO 4 in the Mg 4 Na(PO 4 ) 3 –Mg 3 (PO 4 ) 2 system have been studied by thermal analysis and X-ray diffraction. Optimal conditions for the preparation of phase-pure MgNaPO 4 are ensured by solid-state synthes...

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Bibliographic Details
Published in:Inorganic materials 2022, Vol.58 (4), p.349-355
Main Authors: Preobrazhenskiy, I. I., Putlyaev, V. I.
Format: Article
Language:English
Subjects:
Bioceramics
Biomedical materials
Chemistry
Chemistry and Materials Science
Heat treatment
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Magnesium phosphate
Materials Science
Phase transitions
Polymorphism
Synthesis
Thermal analysis
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Summary:— Phase transformations of the magnesium sodium double phosphates Mg 4 Na(PO 4 ) 3 and MgNaPO 4 in the Mg 4 Na(PO 4 ) 3 –Mg 3 (PO 4 ) 2 system have been studied by thermal analysis and X-ray diffraction. Optimal conditions for the preparation of phase-pure MgNaPO 4 are ensured by solid-state synthesis with heat treatment at 900°C, followed by additional firing at 600°C, which is related to the polymorphic transformations of this phase at temperatures of 893 and 727°C. The polymorphism of Mg 4 Na(PO 4 ) 3 has been studied in detail. It has been shown that this compound undergo a polymorphic transformation at 1025°C and decompose incongruently at 1141°C. The synthesized compounds can be used as a basis for the fabrication of bioceramic materials for osteoplasty.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168522030128