| The number of ceramic used
in coatings is almost inexhaustible. Frequently a combination
of materials further increases the performance of the coating.
Generally, ceramic coatings can be categorised into three
groups including oxides, carbides and nitrides. Plasma spraying can
produce oxides (Al2O3, Cr2O3, TiO2…)
and a few carbides coatings (WC, Cr2C3…).
High purity metals or alloys such as tantalum,
chromium, copper, molybdenum, stainless steel, M-Cr-Al-X
alloys and so on can be sprayed.
The calcium phosphates ceramics like hydroxyapatite
show a great ability to form a physical-chemical bond with
human bone.
HAP (Hydroxyapatite : Ca10(PO4)6(OH)2)
coated implants are widely used in orthopaedic surgery because
of their good biocompatibility related to the osteoconductive
properties of calcium phosphate coating.
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