US5855996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive compact with improved properties
Assignee: Diamond Innovations Inc
•
Filing: 1995-12-12
•
Granted: 1999-01-05
•
Expires: 2015-12-12
Abstract
Abstract Metal carbide supported polycrystalline diamond (PCD) compacts having improved abrasion/impact resistance properties and a method for making the same under high temperature/high pressure (HT/HP) processing conditions. The PCD compact is characterized as having a mixture of submicron sized diamond particles and large sized diamond particles.
Inventors
- 👤 Francis Raymond Corrigan
- 👤 Henry Samuel Marek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:36
CPC Classifications
B; B22; B22F; B22F7/00; B22F7/06; B24; B24C; B24C3/00; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B24D; B24D3/00; B24D3/02; B24D3/04; B24D3/06; C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/622; C04B35/64; C04B35/645; C04B37/00; C04B37/02; C04B37/021; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/062; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/0685; B22F2999/00; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/42; C04B2235/422; C04B2235/427; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2235/5445; C04B2235/5463; C04B2235/5472; C04B2237/00; C04B2237/30; C04B2237/32; C04B2237/36; C04B2237/363; C04B2237/40; C04B2237/401; C04B2237/50; C04B2237/61; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/25; Y10T428/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
103 words
A metal carbide supported polycrystalline diamond (PCD) compact comprising: a sintered PCD compact layer; and a cemented metal carbide support layer bonded to said PCD compact layer, said cemented metal carbide support layer comprising particles of a metal carbide; wherein said sintered PCD compact layer is characterized as having a mixture of submicron sized diamond particles having particle sizes ranging from about 0.01 to about 1 micron and large sized diamond particles having particle sizes ranging from about 6 to about 100 microns; and wherein said sintered PCD compact layer comprises from about 2 to about 15 weight percent submicron sized diamond particles.
Claim 2
Dependent Claim
103 words
A metal carbide supported polycrystalline diamond (PCD) compact comprising: a sintered PCD compact layer; and a cemented metal carbide support layer bonded to said PCD compact layer, said cemented metal carbide support layer comprising particles of a metal carbide; wherein said sintered PCD compact layer is characterized as having a mixture of submicron sized diamond particles having particle sizes ranging from about 0.01 to about 1 micron and large sized diamond particles having particle sizes ranging from about 6 to about 100 microns; and wherein said sintered PCD compact layer comprises from about 2 to about 15 weight percent submicron sized diamond particles.
Claim 3
Dependent Claim
39 words
The metal carbide supported PCD compact of claim 1 wherein said metal carbide of said cemented metal carbide support layer is selected from the group consisting of tungsten carbide, titanium carbide, tantalum carbide, and molybdenum carbide, and mixtures thereof.
Claim 4
Dependent Claim
44 words
The metal carbide supported PCD compact of claim 1 wherein said cemented metal carbide support further comprises a binder metal selected from the group consisting of cobalt, nickel, iron, ruthenium, rhodium, palladium, platinum, chromium, manganese, tantalum, osmium, and iridium, and mixtures and alloys thereof.
Claim 5
Dependent Claim
28 words
The metal carbide supported PCD compact of claim 3 wherein said cemented metal carbide support layer comprises between about 6% to 25% by weight of said binder metal.
Claim 6
Dependent Claim
26 words
The metal carbide supported PCD compact of claim 1, wherein said subrnicron sized diamond particles have particle sizes ranging from about 0.05 to about 1 micron.
Claim 7
Dependent Claim
26 words
The metal carbide supported PCD compact of claim 5, wherein said submicron sized diamond particles have particle sizes ranging from about 0.1 to about 1 micron.
Claim 8
Dependent Claim
25 words
The metal carbide supported PCD compact of 1, wherein the large sized diamond particles have particle sizes ranging from about 10 to about 100 microns.
Claim 9
Dependent Claim
25 words
The metal carbide supported PCD compact of 1, wherein the large sized diamond particles have particle sizes ranging from about 10 to about 100 microns.
Claim 10
Dependent Claim
26 words
The metal carbide supported PCD compact of claim 7, wherein the large sized diamond particles have particle sizes ranging from about 40 to about 100 microns.
Claim 11
Dependent Claim
28 words
The metal carbide supported PCD compact of claim 1, wherein said sintered PCD compact layer comprises from about 2 to about 8 weight percent submicron sized diamond particles.
Claim 12
Dependent Claim
28 words
The metal carbide supported PCD compact of claim 9, wherein said sintered PCD compact layer comprises from about 4 to about 8 weight percent submicron sized diamond particles.
References Cited (Backward Citations)
US4311490A
Cited
US5106392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-01-04 | 2002-07-06 | 2003-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-01-04 | 2006-07-06 | 2007-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-01-04 | 2010-07-06 | 2011-01-05 | $7700.00 | Window Closed / Lapsed |