Method for bonding a calcium phosphate coating to stainless stee

Coating processes – Medical or dental purpose product; parts; subcombinations;... – Implantable permanent prosthesis

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427252, 4273767, 427380, 427405, 205191, 2041802, 2041815, A61F 228

Patent

active

054827310

ABSTRACT:
This document discloses a method for bonding a calcium phosphate coating to stainless steels or cobalt base alloys for bioactive fixation of artificial implants. The method consists essentially of the following successive steps: applying and thermally diffusing a layer of titanium or its alloys into the stainless steel or cobalt base alloy substrates, applying a calcium phosphate coating and thermally diffusing Ca.sup.2+ and PO.sub.4.sup.-3 ions of the calcium phosphate into the intermediate layer of the titanium or its alloys and finally, the hydrothermal processing of the calcium phosphate coating.

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