Claims
- 1. A structural component consisting essentially of a super alloy having a high temperature protective coating, said coating, essentially consists of a ceramic material of 93-42 mole % of the oxide of zirconium, mixed with 2-8 mole % of yttrium oxide, for forming a stabilized zirconium oxide crystal combination, said combination, additionally being mixed with 5-50 mole % of zirconium silicate, said mixture being ground and sintered at a temperature between 1450.degree. C. and 1500.degree. C. to form a corrosion-resistant envelope around the stabilized zirconium oxide crystals and coated onto said super alloy substrate.
- 2. A structural component consisting essentially of a super alloy having a high temperature protective coating, essentially consisting of 92-40 mole % of the oxide of zirconium, mixed with 3-10 mole % of magnesium oxide for forming a stabilized zirconium oxide crystal combination, said combination additionally being mixed with 5-50 mole % of zirconium silicate, said mixture being ground and sintered at a temperature between 1450.degree. C. and 1500.degree. C. to form a corrosion-resistant envelope around the stabilized zirconium oxide crystals and coated onto said super alloy substrate.
- 3. A structural component consisting essentially of a super alloy having a high temperature protective coating, essentially consisting of 93-62 mole % of the oxide of zirconium, mixed with 2-8 mole % of yttrium oxide for forming a stabilized zirconium oxide and yttrium oxide combination, said combination being additionally mixed with an amount of an aluminum titanate, wherein the amount of Al.sub.2 O.sub.3 is between 3 and 18 mole % and the amount of TiO.sub.2 is between 2 and 12 mole %, and being sufficient to impart corrosion-resistance to said combination, said mixture being ground and sintered at a temperature between 1450.degree. C. and 1500.degree. C. to form a corrosion-resistant aluminum titanate envelope around the stabilized zirconium oxide combination and coated onto said super alloy substrate.
- 4. A structural component consisting essentially of a super alloy having a high temperature protective coating, essentially consisting of a ceramic material of 92-55 mole % zirconium oxide, mixed with 3-15 mole % of magnesium oxide, for forming a stabilized zirconium oxide and magnesium oxide combination, said combination being additionally mixed with an amount of corrosion-resistant aluminum titanate, wherein the amount of Al.sub.2 O.sub.3 is between 3 and 18 mole % and the amount of TiO.sub.2 is between 2 and 12 mole %, and being sufficient to impart corrosion resistance to said combination said mixture being ground and sintered at a temperature between 1450.degree. C. and 1500.degree. C. to form a corrosion-resistant envelope substantially surrounding said stabilized zirconium oxide combination and coated onto said super alloy substrate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3543802 |
Dec 1985 |
DEX |
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BACKGROUND OF THE INVENTION
1. Field of the Invention
This application is a continuation of application Ser. No. 183,388 filed Apr. 13, 1988, now abandoned, which is a continuation of application Ser. No. 939,565, filed Dec. 9, 1986, now abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (2)
Number |
Date |
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121966 |
Sep 1980 |
JPX |
0077406 |
May 1985 |
JPX |
Continuations (2)
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Number |
Date |
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Parent |
183388 |
Apr 1988 |
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Parent |
939565 |
Dec 1986 |
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