US5290333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-ceramic structure with intermediate high temperature reaction barrier layer
Assignee: General Electric Co
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Filing: 1992-12-02
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Granted: 1994-03-01
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Expires: 2012-12-02
Abstract
Abstract A Si--SiC ceramic layer is bonded to a non-porous SiC substrate with the Si etched from the layer to form a relatively porous surface on the otherwise non-porous high strength SiC substrate. A quartz layer is softened by heating and forced into the pores of the porous layer to form a mechanical bond to the SiC substrate. A refractory metal layer is bonded to the quartz layer to complete the joint. A refractory metal support component is then bonded to the refractory layer whereby the quartz serves as a high strength, high temperature reaction barrier between the metal of the refractory layer and the silicon of the SiC substrate.
Inventors
- 👤 Herman F. Nied
- 👤 Richard L. Mehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:07
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B35/00; C04B35/622; C04B35/626; C04B35/62605; C04B35/62645; C04B35/62665; C04B37/025; F; F28; F28F; F28F21/00; F28F21/04; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/062; C04B2237/08; C04B2237/083; C04B2237/10; C04B2237/12; C04B2237/122; C04B2237/30; C04B2237/32; C04B2237/36; C04B2237/365; C04B2237/368; C04B2237/40; C04B2237/403; C04B2237/50; C04B2237/52; C04B2237/54; C04B2237/58; C04B2237/64; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/765; C04B2237/82; C04B2237/84; C04B2237/88; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/13; Y10T428/131; Y10T428/1317; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249956; Y10T428/249957; Y10T428/249967; Y10T428/249969; Y10T428/24997; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
52 words
A method of making a ceramic-metal structure comprising the steps of: etching a surface of a silicon based ceramic substrate to effect removal of surface silicon therefrom, thereby producing a porous surface; bonding a layer of glass to said porous surface; and bonding a refractory metal member to said layer of glass.
Claim 2
Independent Claim
52 words
A method of making a ceramic-metal structure comprising the steps of: etching a surface of a silicon based ceramic substrate to effect removal of surface silicon therefrom, thereby producing a porous surface; bonding a layer of glass to said porous surface; and bonding a refractory metal member to said layer of glass.
Claim 3
Dependent Claim
35 words
The method of claim 1 wherein said step of bonding a layer of glass to said porous surface includes heating glass to its softening temperature and then compressing the softened glass against said porous surface.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein said layer of glass comprises a glass having a softening temperature of at least about 750° C.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein said layer of glass comprises fused silica.
Claim 6
Independent Claim
81 words
A method of making a ceramic-metal structure comprising the steps of: bonding a layer of a silicon-silicon based ceramic composite to a silicon based ceramic substrate; etching a surface of said layer of a silicon-silicon based ceramic composite to effect removal of surface silicon therefrom, thereby producing a porous surface; bonding a layer of glass to said porous surface; bonding a layer of refractory metal to said layer of glass; and bonding a metal member to said layer of refractory metal.
Claim 7
Independent Claim
81 words
A method of making a ceramic-metal structure comprising the steps of: bonding a layer of a silicon-silicon based ceramic composite to a silicon based ceramic substrate; etching a surface of said layer of a silicon-silicon based ceramic composite to effect removal of surface silicon therefrom, thereby producing a porous surface; bonding a layer of glass to said porous surface; bonding a layer of refractory metal to said layer of glass; and bonding a metal member to said layer of refractory metal.
Claim 8
Dependent Claim
35 words
The method of claim 5 wherein said step of bonding a layer of glass to said porous surface includes heating glass to its softening temperature and then compressing the softened glass against said porous surface.
Claim 9
Dependent Claim
23 words
The method of claim 5 wherein said layer of glass comprises a glass having a softening temperature of at least about 750° C.
Claim 10
Dependent Claim
13 words
The method of claim 5 wherein said layer of glass comprises fused silica.
References Cited (Backward Citations)
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