US4186022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superhard composite material
Assignee: Vsesojuzny Nauchni-Issledovatelsky Institut Abrazivov I Shlifovania
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Filing: 1978-06-15
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Granted: 1980-01-29
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Expires: 1998-06-15
Abstract
Abstract A superhard composite material comprises cubic boron nitride and a binder nsisting of carbide and diboride of a metal selected from the group IV-V of the periodic system, taken in eutectic ratio, the components being contained therein in the following amounts, in percent by weight: cubic boron nitride: 28 to 80 carbide and diboride of a metal selected from the group IV-V of the periodic system, taken in eutectic ratio: 72 to 20 The proposed material has high heat, and electrical conductivity, as well as high wear resistance and low brittleness.
Inventors
- 👤 Sergei S. Ordanian
- 👤 Vladislav S. Lysanov
- 👤 Viktor V. Digonsky
- 👤 Vadim A. Blinkov
- 👤 Ljubov A. Pekelis
- 👤 Vera I. Denisova
- 👤 Vladimir I. Unrod
- 👤 Sergei V. Sinelnikov
- 👤 Marina P. Chestnokova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:47
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/58; C04B35/583; C04B35/5831; B; B23; B23B; B23B27/00; B23B27/14; B23B27/148
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
83 words
A superhard composite material consisting essentially of cubic boron nitride and a binder consisting essentially of a carbide and a diboride of one metal selected from the group IV and V metals of the periodic system, said carbide and diboride present in eutectic ratio, said components being present in the following amounts: ______________________________________
Per cent by
weight
______________________________________
cubic boron nitride 28 to 80
carbide and diboride [of a metal
selected from the group IV-V of
the periodic system] 72 to 20
______________________________________
Claim 2
Dependent Claim
83 words
A superhard composite material consisting essentially of cubic boron nitride and a binder consisting essentially of a carbide and a diboride of one metal selected from the group IV and V metals of the periodic system, said carbide and diboride present in eutectic ratio, said components being present in the following amounts: ______________________________________
Per cent by
weight
______________________________________
cubic boron nitride 28 to 80
carbide and diboride [of a metal
selected from the group IV-V of
the periodic system] 72 to 20
______________________________________
Claim 3
Dependent Claim
49 words
A superhard composite material as claimed in claim 1, wherein the components are contained in the following ratio: ______________________________________
Per cent by
weight
______________________________________
cubic boron nitride 50 to 70
carbide and diboride [of a metal
selected from the group IV-V of
the periodic system] 50 to 30
______________________________________
Claim 4
Dependent Claim
16 words
A superhard composite material as claimed in claim 1, in which said one metal is titanium.
Claim 5
Dependent Claim
16 words
A superhard composite material as claimed in claim 1, in which said one metal is vanadium.
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) | 1983-01-28 | 1983-07-30 | 1984-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-28 | 1987-07-30 | 1988-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-28 | 1991-07-30 | 1992-01-29 | $7700.00 | Window Closed / Lapsed |