Synthesis of calcium phosphate bioceramics by citrate gel pyrolysis method

Hydroxyapatite granules have been prepared by the pyrolysis of an amorphous polymeric precursor compound containing calcium–phosphate–nitrate–citrate species. The precursor phase on heating at around 550–650 °C turned into crystalline phase. The thermogravimetrical analysis (TGA/DTA) study revealed...

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Published in:Ceramics international 2005, Vol.31 (1), p.109-114
Main Authors: Varma, H.K., Suresh Babu, S.
Format: Article
Language:English
Subjects:
Applied sciences
Bioceramic
Biological and medical sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Citrate precursor
Exact sciences and technology
Hydroxyapatite
Medical sciences
Miscellaneous
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Synthesis
Technical ceramics
Technology. Biomaterials. Equipments. Material. Instrumentation
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container_title Ceramics international
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creator Varma, H.K.
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description Hydroxyapatite granules have been prepared by the pyrolysis of an amorphous polymeric precursor compound containing calcium–phosphate–nitrate–citrate species. The precursor phase on heating at around 550–650 °C turned into crystalline phase. The thermogravimetrical analysis (TGA/DTA) study revealed that the decomposition and crystallization is completed below 650 °C. Fourier transform infrared spectroscopy (FTIR) studies conducted on the precursor phase heated at various temperatures showed that the carbonate substitution occurred in the phosphate moieties at lower temperatures of heating. The X-ray diffractometry (XRD) revealed that the hydroxyapatite formation is highly uniform with respect to apatite phase. The scanning electron microscopy (SEM) showed that the product is highly porous.
doi_str_mv 10.1016/j.ceramint.2004.03.041
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subjects Applied sciences
Bioceramic
Biological and medical sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Citrate precursor
Exact sciences and technology
Hydroxyapatite
Medical sciences
Miscellaneous
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Synthesis
Technical ceramics
Technology. Biomaterials. Equipments. Material. Instrumentation
title Synthesis of calcium phosphate bioceramics by citrate gel pyrolysis method
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