Claims
- 1. A process for producing a calcium phosphate coated-composite material which comprises coating a coating solution containing one or more metals selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, tin, cobalt, aluminum, chromium, molybdenum and tugsten on the surface of a metallic substrate, converting the one or more metals into a corresponding oxide by heating in a oxidizing atmosphere to form an oxide layer, and then forming a coating of calcium phosphate on the surface of the oxide layer.
- 2. The process as claimed in claim 1, wherein the metallic substrate is made of titanium or a titanium alloy.
- 3. The process as claimed in claim 1, wherein the metallic substrate is made of a corrosion resistant iron alloy and the coating solution is a solution containing neither halogen ions nor halogen compounds.
- 4. The process as claimed in claim 1, wherein the formation of the oxide layer by heat treatment is carried out by calcinating at a temperature not less than 300.degree. C.
- 5. The process as claimed in claim 2, wherein the formation of the oxide layer by heat treatment is carried out by calcinating at a temperature not less than 300.degree. C.
- 6. The process as claimed in claim 3, wherein the formation of the oxide layer by heat treatment is carried out by calcinating at a temperature not less than 300.degree. C.
- 7. The process as claimed in claim 1, 2, 3, 4, 5 or 6, wherein the coating of calcium phosphate is carried out by plasma spray coating of calcium phosphate and/or apatite hydroxide power.
- 8. The process as claimed in claim 1, 2, 3, 4, 5 or 6, wherein the coating of calcium phosphate is carried out by coating a nitric acid aqueous solution of apatite hydroxide as a coating solution on the surface of the oxide layer, and then calcining the coating solution at a temperature not less than 300.degree. C.
Priority Claims (1)
Number |
Date |
Country |
Kind |
61-247160 |
Oct 1986 |
JPX |
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Parent Case Info
This is a division of application Ser. No. 07/109,887, filed Oct. 19, 1987 now U.S. Pat. No. 4,847,163.
US Referenced Citations (3)
Divisions (1)
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Number |
Date |
Country |
Parent |
109887 |
Oct 1987 |
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