Novel sol-gel calcium phosphate ceramic coatings and method...

Details Novel sol-gel calcium phosphate ceramic coatings and method... Novel sol-gel calcium phosphate ceramic coatings and method...

C - Chemistry, Metallurgy

01

B

C01B 25/32 (2006.01) A61L 27/12 (2006.01) C23C 18/12 (2006.01)

Patent

CA 2345552

This invention relates to novel sol-gel calcium phosphate, in particular hydroxyapatite ceramic coatings and processes of making same at low temperature. Such coatings are useful, inter alia, for dental implants and bone-metal contact appliances. A sol-gel process for preparing a crystallized hydroxyapatite which comprises: (a) hydrolysing a phosphor precursor in a water based medium; (b) adding a calcium salt precursor to the medium after the phosphite has been hydrolysed to obtain a hydroxyapatite gel; and (c) calcining the crystallized hydroxyapatite at a suitable elevated temperature.

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