US4532179A
Expired / Lapsed
US
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Metal-ceramic bonded material
Assignee: Niterra Co Ltd
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Filing: 1983-04-08
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Granted: 1985-07-30
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Expires: 2003-04-08
Abstract
Abstract A metal-ceramic bonded material is described wherein a metal member comprising a metal film and an oxide film as an upper layer is bonded to a ceramic member by a heat-resistant adhesive so that the surface of the oxide film of said metal member faces the surface of the ceramic member.
Inventors
- 👤 Akio Takami
- 👤 Toshitaka Matsuura
- 👤 Kazutoshi Tanaka
- 👤 Toshifumi Sekiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:18
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/025; C04B37/026; C04B37/028; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/06; C04B2237/064; C04B2237/12; C04B2237/123; C04B2237/124; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/405; C04B2237/406; C04B2237/50; C04B2237/62; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/765; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
80 words
A metal-ceramic bonded material, wherein a metal member consisting essentially of a base material, a metal film and an oxide film of a thickness less than about 50μ as an upper layer is bonded to a ceramic member by a heat-resistant inorganic adhesive so that the surface of the oxide film of said metal member faces the surface of the ceramic member and the oxide film acts to provide a sliding function between the metal film and the heat-resistant adhesive.
Claim 2
Dependent Claim
80 words
A metal-ceramic bonded material, wherein a metal member consisting essentially of a base material, a metal film and an oxide film of a thickness less than about 50μ as an upper layer is bonded to a ceramic member by a heat-resistant inorganic adhesive so that the surface of the oxide film of said metal member faces the surface of the ceramic member and the oxide film acts to provide a sliding function between the metal film and the heat-resistant adhesive.
Claim 3
Dependent Claim
44 words
A metal-ceramic bonded material according to claim 1, wherein the oxide film is formed by utilizing a thermal treatment in air at from 200 to 500° C. in a bonding step using a heat-resistant adhesive for adhering the ceramic member to the metal member.
Claim 4
Dependent Claim
42 words
A metal-ceramic bonded material according to claim 1, wherein the oxide film is formed by subjecting to a thermal treatment of the metal member comprising metal film in air, or chemically oxidizing the same by oxidizing agent prior to a bonding step.
Claim 5
Dependent Claim
26 words
A metal-ceramic bonded material according to claim 1, wherein the heat-resistant adhesive is selected from a group consisting of phosphoric acid cement and water glass cement.
Claim 6
Dependent Claim
30 words
A metal-ceramic bonded material according to claim 1, wherein the heat-resistant adhesive is a mixture of aluminum phosphate solution as an adhesive and aluminum oxide powder as a reinforcing agent.
Claim 7
Dependent Claim
20 words
A metal-ceramic bonded material according to claim 1, wherein the oxide film has a thickness of from 1μ to 50μ.
Claim 8
Dependent Claim
44 words
A metal-ceramic bonded material according to claim 6, wherein the oxide film is formed by utilizing a thermal treatment in air at from 200 to 500° C. in a bonding step using a heat-resistant adhesive for adhering the ceramic member to the metal member.
Claim 9
Dependent Claim
42 words
A metal-ceramic bonded material according to claim 6, wherein the oxide film is formed by subjecting to a thermal treatment of the metal member comprising metal film in air or chemically oxidizing the same by oxidizing agent prior to a bonding step.
Claim 10
Dependent Claim
18 words
A metal-ceramic bonded material according to claim 1, wherein the metal film is composed of copper or nickel.
Claim 11
Dependent Claim
44 words
A metal-ceramic bonded material according to claim 9, wherein the oxide film is formed by utilizing a thermal treatment in air at from 200 to 500° C. in a bonding step using a heat-resistant adhesive for adhering the ceramic member to the metal member.
Claim 12
Dependent Claim
42 words
A metal-ceramic bonded material according to claim 9, wherein the oxide film is formed by subjecting to a thermal treatment of the metal member comprising metal film in air or chemically oxidizing the same by oxidizing agent prior to a bonding step.
Claim 13
Dependent Claim
20 words
A metal-ceramic bonded material according to claim 9, wherein the oxide film has a thickness of from 1μ to 50μ.
Claim 14
Dependent Claim
44 words
A metal-ceramic bonded material according to claim 12, wherein the oxide film is formed by utilizing a thermal treatment in air at from 200 to 500° C. in a bonding step using a heat-resistant adhesive for adhering the ceramic member to the metal member.
Claim 15
Dependent Claim
42 words
A metal-ceramic bonded material according to claim 12, wherein the oxide film is formed by subjecting to a thermal treatment of the metal member comprising metal film in air or chemically oxidizing the same by oxidizing agent prior to a bonding step.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |