EP0434299A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Multi-layer coatings for reinforcements in high temperature composites
Assignee: Standard Oil Co
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Filing: 1990-12-13
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Granted: —
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Expires: 2010-12-13
Abstract
Abstract The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having a coating of at least three layers, wherein the layers are alternately A-material layers of the general formula: Al x O y N z wherein x is up to about 60 atomic% of the coating; y is from about 15 atomic% to about 55 atomic% of the coating; and z is from about 5 atomic% to about 45 atomic% of the coating, with the proviso that x+y+z-100 , and B-material layers comprising a metal alloy, such that the first and last layers of the coating are A-material layers. The invention further relates to a high stength, high temperature performance composite containing the above-specified coated reinforcement.
Inventors
- 👤 D. Lukco
- 👤 M. A. Tenhover
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 04:26
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C14/00; C03C14/002; C04B35/00; C04B35/01; C04B35/03; C04B35/04; C04B35/053; C04B35/10; C04B35/111; C04B35/117; C04B35/14; C04B35/16; C04B35/18; C04B35/19; C04B35/195; C04B35/22; C04B35/515; C04B35/56; C04B35/565; C04B35/573; C04B35/58; C04B35/58085; C04B35/58092; C04B35/622; C04B35/626; C04B35/62605; C04B35/62645; C04B35/62675; C04B35/6268; C04B35/628; C04B35/62844; C04B35/62857; C04B35/6286; C04B35/62863; C04B35/62865; C04B35/62876; C04B35/62884; C04B35/62894; C04B35/62897; C04B35/71; C04B35/74; C04B35/76; C04B35/78; C04B35/80; C04B41/45; C04B41/4584; C04B41/52; C04B41/80; C04B41/81; C04B41/89; C22; C22C; C22C49/00; C22C49/14; B; B22; B22F; B22F2998/00; C03C2214/00; C03C2214/02; C03C2214/03; C03C2214/04; C03C2214/06; C03C2214/07; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/38; C04B2235/3817; C04B2235/3826; C04B2235/50; C04B2235/52; C04B2235/5208; C04B2235/5216; C04B2235/524; C04B2235/5244; C04B2235/5276; C04B2235/5292; C04B2235/70; C04B2235/74; C04B2235/79; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2918; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/2949; Y10T428/2956; Y10T428/2958
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
A coated reinforcement material comprising a SiC reinforcement having a coating of at least three layers, wherein said layers are alternately A-material layers of the general formula: Al x O y N z wherein x is up to about 60 atomic % of the coating; y is from about 15 atomic % to about 55 atomic % of the coating; and z is from about 5 atomic % to about 45 atomic % of the coating, with the proviso that x+y+z-100 , and B-material layers comprising a metal alloy, said alloy containing at least one element selected from the group consisting of Ni, Fe, Co, Mo, B, Nb, W, Ta, Ti and Zr, such that the first and last layers of said coating are said A-material layers.
Claim 2
Dependent Claim
26 words
The coated reinforcement material as in claim 1 wherein said SiC reinforcement is selected from the group consisting of continuous fibres, chopped fibres, whiskers and platelets.
Claim 3
Dependent Claim
30 words
The coated reinforcement material as claimed in claim 1 or claim 2 wherein said B-material layer metal alloys are selected from the group consisting of NiFe₃, Ni₃Al, NbTi and Fe₉₀V₁₀.
Claim 4
Dependent Claim
29 words
The coated reinforcement material as claimed in claim 1, 2 or 3 wherein said SiC reinforcement is pretreated prior to the addition of said coating to said SiC reinforcement.
Claim 5
Dependent Claim
24 words
The coated reinforcement material as claimed in any one of claims 1 to 4 wherein said SiC reinforcement is deposited on a core material.
Claim 6
Dependent Claim
24 words
The coated reinforcement material as claimed in claim 5 wherein said core material is selected from the group consisting of W, Mo and Ti.
Claim 7
Dependent Claim
62 words
A high strength, high temperature performance composite comprising a SiC reinforcement material having an at least three layer coating, wherein said layers alternately comprise A-material layers of aluminum, oxygen, nitrogen and B-material layers of metal alloys, such that the first and last layers of said coating are said A-material layers, said coated SiC reinforcement material being in combination with a matrix material.
Claim 8
Dependent Claim
24 words
The composite as claimed in claim 7 wherein said matrix material is selected from the group consisting of ceramic, glass and intermetallic matrix composites.
Claim 9
Dependent Claim
70 words
The composite as claimed in claim 7 wherein said A-material layers are of the general formula:- Al x O y N z wherein x is up to about 60 atomic % of said coating; y is from about 15 atomic % to about 55 atomic % of said coating; and z is from about 5 atomic % to about 45 atomic % of said coating; with proviso that x+y+z=100 .
References Cited (Backward Citations)
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