Oriented growth of surface grains in sintered β tricalcium phosphate bioceramics

Preferential orientation of sintered surface grains of beta tricalcium phosphate (β TCP) ceramic was studied by X-ray diffraction (XRD) method and scanning electron microcopy (SEM). The β TCP powder was prepared by calcining the precipitate at 800°C, obtained by precipitation method involving calciu...

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Bibliographic Details
Published in:Materials letters 2001-06, Vol.49 (2), p.83-85
Main Authors: Varma, H.K, Sureshbabu, S
Format: Article
Language:English
Subjects:
Applied sciences
Bioceramics
Biological and medical sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Hydroxyapatite
Medical sciences
Miscellaneous
Precipitation
Sintering
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technical ceramics
Technology. Biomaterials. Equipments
β Tricalcium phosphate orientation
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Summary:Preferential orientation of sintered surface grains of beta tricalcium phosphate (β TCP) ceramic was studied by X-ray diffraction (XRD) method and scanning electron microcopy (SEM). The β TCP powder was prepared by calcining the precipitate at 800°C, obtained by precipitation method involving calcium nitrate and ammonium dihydrogen orthophosphate. The powder was compacted and sintered at 1150°C to ∼95% density. The surface grains of the above ceramic were found to preferentially orient with respect to a–b plane by XRD study. High grain growth was observed to the surface grains compared to the bulk grains.
ISSN:0167-577X
1873-4979
DOI:10.1016/S0167-577X(00)00346-3