Patent ID: 8877283

Claim:
A method for preparing a porous hydroxyapatite coating through suspension plasma spraying, said method comprising: adding a pore-forming agent to a hydroxyapatite suspension having a solids content of 16%-45% to form a liquid feedstock, wherein the pore-forming agent comprises at least one member selected from the group consisting of ammonium carbonate and ammonium bicarbonate and is added to the hydroxyapatite suspension in an amount of 5%-65% based on a solids content of the suspension being referred to as 100%, and optionally further comprises at least one additional pore-forming agent selected from the group consisting of ethanol, hydrogen peroxide and deionized water; injecting into a central plasma flame the liquid feedstock so as to produce a plasma spray; and depositing onto a substrate surface of a biomedical material the porous hydroxyapatite coating from the plasma spray.