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US4142869A
Expired / Lapsed
US
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Compact-grained diamond material
Assignee: Individual
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Filing: 1977-03-22
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Granted: 1979-03-06
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Expires: 1997-03-22
Abstract
Abstract The proposed compact-grained diamond material consisting of powdered diamond particles is characterized in that the diamond particles therein are coated with a titanium carbide or zirconium carbide film, which film forms a cellular structure over the entire body of the material, and are bound with copper-titanium intermetallides filling the spacing between said diamond particles.
Inventors
- 👤 Leonid F. Vereschagin
- 👤 Aik A. Semerchan
- 👤 Tamara T. Gankevich
- 👤 Mikhail E. Dmitriev
- 👤 Vitaly P. Modenov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:56
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/628; C04B35/62802; C04B35/62828; C04B35/62831; B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B24; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; B24D3/08; C09; C09K; C09K3/00; C09K3/14; C09K3/1436; C22; C22C; C22C26/00; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/062; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/0685; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/42; C04B2235/422; C04B2235/427
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
Method of producing a diamond based compact abrasive material consisting essentially of diamond particles all of which are coated with a titanium carbide or zirconium carbide film, which film forms an uninterrupted cellular structure throughout the entire volume of the diamond particles, the thus carbide-coated diamond particles being bound into a compact mass by substantially stoichiometric copper-titanium or copper-zirconium intermetallides filling the spacing between said carbide-coated diamond particles, which comprises subjecting diamond particles and a compact body of said intermetallide in a container to a temperature of 1000°-1200° C and a pressure of 10-30 kilobars to melt said intermetallide, whereby the intermetallide impregnates the diamond particles and is simultaneously saturated with the diamond carbon forming a film of the corresponding titanium or zirconium carbide on the diamond, and gradually reducing the temperature and pressure, thus obtaining said diamond based compact abrasive material.
Claim 2
Dependent Claim
142 words
Method of producing a diamond based compact abrasive material consisting essentially of diamond particles all of which are coated with a titanium carbide or zirconium carbide film, which film forms an uninterrupted cellular structure throughout the entire volume of the diamond particles, the thus carbide-coated diamond particles being bound into a compact mass by substantially stoichiometric copper-titanium or copper-zirconium intermetallides filling the spacing between said carbide-coated diamond particles, which comprises subjecting diamond particles and a compact body of said intermetallide in a container to a temperature of 1000°-1200° C and a pressure of 10-30 kilobars to melt said intermetallide, whereby the intermetallide impregnates the diamond particles and is simultaneously saturated with the diamond carbon forming a film of the corresponding titanium or zirconium carbide on the diamond, and gradually reducing the temperature and pressure, thus obtaining said diamond based compact abrasive material.
Claim 3
Dependent Claim
21 words
Method according to claim 1, wherein the cubic content of said diamond particles is equal to or higher than 65 percent.
Claim 4
Dependent Claim
16 words
Method according to claim 1, wherein the diamond particles have sizes between 1 and 400 microns.
Claim 5
Dependent Claim
18 words
Method according to claim 1 wherein the volume of the diamond particles is between 70 and 80 percent.
Claim 6
Dependent Claim
10 words
Method according to claim 1 wherein said intermetallide is copper-titanium.
Claim 7
Dependent Claim
10 words
Method according to claim 1 wherein said intermetallide is copper-zirconium.
Claim 8
Dependent Claim
14 words
The diamond based compact abrasive material produced according to the method of claim 1.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |