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US 5,089,195 AGranted
Method for producing calcium phosphate-based material
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorsTakeshi Ichitsuka, Yasuhiko Hirayama, Tetsuro Ogawa
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Abstract
A method for producing a calcium phosphate-based material comprising: (a) molding a calcium phosphate powder; (b) preliminarily calcining the resulting molding in a vacuum or under a reduced pressure until the relative density is 95% or more; and (c) firing the molding in air, an inert gas, or nitrogen gas.
Claims8
A method for producing a calcium phosphate-based material comprising:
- (a) molding a calcium phosphate powder;
- (b) preliminarily calcining the resulting molding until closed pores are formed;
- and
- (c) firing said molding in air, an inert gas, or nitrogen gas, wherein said preliminary calcining is carried out under a pressure of less than 1 Torr and at a temperature of from 950.degree. to 1,000.degree. C.
1 more element
Dependencies are inferred from the claim text.