Whitlockite ceramic

C - Chemistry – Metallurgy – 04 – B

Patent

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C04B 35/00 (2006.01) A61L 27/12 (2006.01) C01B 25/32 (2006.01) C04B 35/447 (2006.01) A61F 2/00 (2006.01)

Patent

CA 1120961

ABSTRACT OF THE DISCLOSURE A novel, polycrystalline whitlockite ceramic in either pore-free or porous form, in particular, a poly- crystalline ceramic which is translucent, isotropic and sub- stantially pore-free, said ceramic comprising whitlockite containing within the crystal lattice thereof about 0.1 to 2.2 per cent by weight sulfite ion and having an average crystallite size in the approximate range 0.3 to 3 microns and a density greater than about 99 per cent of the theore- tical density of .beta.-whitlockite, said ceramics being useful as biological implant materials. The preparation of said ceramics as well as related non-ceramic whitlockite are dis- closed.

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