US3874069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding silicon carbide body to a metal part
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1974-03-12
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Granted: 1975-04-01
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Expires: 1994-03-12
Abstract
Abstract To bond a self-bonded silicon carbide body to a metal part the self-bonded silicon carbide body is treated to remove free silicon from its surface, and electroplated with a metal. The electroplating is then bonded to the metal part.
Inventors
- 👤 Bryan Edward Ingleby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:39
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/54
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
50 words
A PROCESS FOR JOINING A METAL PART TO A SELF-BONDED SILICON CARBIDE BODY, THE PROCESS COMPRISING THE STEPS OF TREATING THE SILICON CARBIDE BODY TO REMOVE FREE SILICON FROM THE SURFACE OF THE BODY, ELECTROPLATING THE TREATED BODY WITH A METAL AND BONDING THE METAL PLATING TO A METAL PART.
Claim 2
Dependent Claim
50 words
A PROCESS FOR JOINING A METAL PART TO A SELF-BONDED SILICON CARBIDE BODY, THE PROCESS COMPRISING THE STEPS OF TREATING THE SILICON CARBIDE BODY TO REMOVE FREE SILICON FROM THE SURFACE OF THE BODY, ELECTROPLATING THE TREATED BODY WITH A METAL AND BONDING THE METAL PLATING TO A METAL PART.
Claim 3
Dependent Claim
24 words
A process for joining a metal part to a self-bonded silicon carbide body as claimed in claim 1 wherein the electroplated metal is nickel.
Claim 4
Dependent Claim
24 words
A process of joining a metal part to a self-bonded silicon carbide body as claimed in claim 1 wherein the electroplated metal is copper.
Claim 5
Dependent Claim
32 words
A process of joining a metal part to a self-bonded silicon carbide body as claimed in claim 1 wherein the free silicon is removed by immersion of the body in caustic alkali.
Claim 6
Dependent Claim
35 words
A process of joining a metal part to a self-bonded silicon carbidE body as claimed in claim 1 wherein the free silicon is removed by immersion of the body in a hydrofluoric acid/nitric acid mixture.
Claim 7
Dependent Claim
26 words
A process of joining a metal part to a self-bonded silicon carbide body as claimed in claim 1 wherein the metal part is of stainless steel.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |