IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0049691
(2005-02-04)
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발명자
/ 주소 |
- Walker,Terence B.
- Golecki,Ilan
- Booker,Laurie A.
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출원인 / 주소 |
- Honeywell International Inc.
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대리인 / 주소 |
Birch, Stewart, Kolasch &
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인용정보 |
피인용 횟수 :
9 인용 특허 :
37 |
초록
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Coated articles (19) that comprise components, made of carbon fiber or carbon-carbon composites which may be configured, for example, as aircraft landing system brake discs. The components (10 ) are coated with a system that includes a phosphorus-containing undercoating (11) having a specified formu
Coated articles (19) that comprise components, made of carbon fiber or carbon-carbon composites which may be configured, for example, as aircraft landing system brake discs. The components (10 ) are coated with a system that includes a phosphorus-containing undercoating (11) having a specified formulation and a boron-containing overcoating (12) having specified characteristics. The coated articles of the invention, e.g., aircraft brake discs, are protected against catalytic oxidation when the article is subjected to temperatures of 800째 C. (1472째 F.) or greater. Also, a method of protecting a component made of a carbon fiber or carbon-carbon composite simultaneously against catalytic oxidation (e.g., catalyzed by de-icer compositions) and high temperature non-catalytic oxidation.
대표청구항
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What is claimed is: 1. A coated article comprising a component made of carbon fiber or carbon-carbon composite annealed at a temperature in the range of 1600-2600째 C. (2912-4712째 F.), said component being covered by a phosphorus-containing undercoating comprising ions formed from 10-80 wt % H20, 20
What is claimed is: 1. A coated article comprising a component made of carbon fiber or carbon-carbon composite annealed at a temperature in the range of 1600-2600째 C. (2912-4712째 F.), said component being covered by a phosphorus-containing undercoating comprising ions formed from 10-80 wt % H20, 20-70 wt % H3PO4, 0.1-25 wt % alkali metal mono-, di-, or tri-basic phosphate, 0-2 wt % B2O3, and 0-25 wt % MnHPO4.1.6H2O, 0-30 wt % AlPO4, and 0-10 wt % Zn3(PO4)2, provided that at least one of AlPO4, MnHPO4.1.6H2O, and Zn 3(PO4)2 is present, said undercoating having a thickness of approximately 1-10 mil, said undercoating being covered by a boron-containing glass overcoating comprising boron nitride and also at least one of boron carbide and elemental boron, said undercoating having a thickness of approximately 1-10 mil, wherein said coated article is protected against catalytic oxidation when the article is subjected to temperatures of 800째 C. (1472째 F.) or greater. 2. The coated article of claim 1, configured as an aircraft landing system brake disc. 3. The coated article of claim 1, wherein the phosphorus-containing undercoating comprises ions formed from 20-50 wt % H2 0, 30-55 wt % H3PO4, 0-15 wt % MnHPO4.1.6H 2O, 2-15 wt % AlPO4, 0.5-2 wt % B2O3, 1-7 wt % Zn3(PO4)2, and 10-20 wt % KH2 PO4. 4. The coated article of claim 1, wherein the formulation used to make the boron-containing glass overcoating comprises ions formed from 20-60 wt % H20, 25-50 wt % H3PO4, 2-20 wt % alkali metal hydroxide, 1-10 wt % alkali or alkaline earth metal mono-, di-, or tri-basic phosphate, 1-10 wt % boron nitride, and one or both of 1-10 wt % elemental boron and/or 1-10 wt % boron carbide. 5. The article of claim 1, wherein the undercoating is annealed to the carbon composite at a temperature in the range of 250-900째 C. (482-1652째 F.). 6. The article of claim 1, wherein the glass overcoating is annealed to the undercoating at a temperature in the range of 250-650째 C. (482-1202째 F.).
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