US5358741A
Expired / Lapsed
US
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Composite fibers having a diamond surface
Assignee: Case Western Reserve University
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Filing: 1992-09-23
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Granted: 1994-10-25
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Expires: 2012-09-23
Abstract
Abstract The present invention relates to composite fibers having a diamond surface which can be produced using a substrate such as graphite, or other non-diamond inorganic fiber. These substrates produced in the manner described, give rise to improved diamond deposits producing composite fibers having properties not heretofore available.
Inventors
- 👤 Roy Gat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:55
CPC Classifications
B; B24; B24D; B24D11/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2927; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
96 words
The method of forming a composite of a diamond deposit on an inorganic fiber substrate which comprises the steps of: disposing an inorganic fiber in a reactor suitable for diamond deposition; providing an atmosphere of gaseous hydrocarbon and hydrogen atoms in said reactor at a temperature of from about 700° C. to about 1400° C. and a pressure of from about 5 to about 150 Torr; causing diamond crystals to be deposited as a film on the surface of said inorganic fiber to provide a composite fiber having a diamond surface and an inorganic fiber core.
Claim 2
Independent Claim
96 words
The method of forming a composite of a diamond deposit on an inorganic fiber substrate which comprises the steps of: disposing an inorganic fiber in a reactor suitable for diamond deposition; providing an atmosphere of gaseous hydrocarbon and hydrogen atoms in said reactor at a temperature of from about 700° C. to about 1400° C. and a pressure of from about 5 to about 150 Torr; causing diamond crystals to be deposited as a film on the surface of said inorganic fiber to provide a composite fiber having a diamond surface and an inorganic fiber core.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein said inorganic fiber is graphite.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein said inorganic fiber is formed in situ in said reactor prior to deposition of said diamond crystals.
Claim 5
Dependent Claim
23 words
The method of claim 2 wherein said inorganic fiber is formed in situ in said reactor prior to deposition of said diamond crystals.
Claim 6
Dependent Claim
58 words
The method of claim 1 wherein said inorganic fiber is at least one member selected from the group consisting of carbon fibers, silicon carbide (SIC), boron (B), boron carbide (BC), titanium diboride (TiB 2 ), boron nitride (BN), zirconia (ZrO 2 ), beryllium (Be), silica (SiO 2 ), alumina (Al 2 O 3 ), aluminum borate and glasses.
Claim 7
Dependent Claim
12 words
The method according to claim 1 wherein said inorganic fiber is zirconia.
Claim 8
Dependent Claim
12 words
The method according to claim 3 wherein said inorganic fiber is zirconia.
Claim 9
Dependent Claim
13 words
The method according to claim 1 wherein said inorganic fiber is titanium dioxide.
Claim 10
Dependent Claim
13 words
The method according to claim 3 wherein said inorganic fiber is titanium dioxide.
Claim 11
Dependent Claim
13 words
The method according to claim 1 wherein said inorganic fiber is titanium diboride.
Claim 12
Dependent Claim
13 words
The method according to claim 3 wherein said inorganic fiber is titanium diboride.
Claim 13
Dependent Claim
13 words
The method according to claim 1 wherein said inorganic fiber is boron nitride.
Claim 14
Dependent Claim
13 words
The method according to claim 3 wherein said inorganic fiber is boron nitride.
Claim 15
Dependent Claim
12 words
The method according to claim 1 wherein said inorganic fiber is alumina.
Claim 16
Dependent Claim
12 words
The method according to claim 3 wherein said inorganic fiber is alumina.
Claim 17
Dependent Claim
12 words
The method according to claim 1 wherein said inorganic fiber is boron.
Claim 18
Dependent Claim
12 words
The method according to claim 3 wherein said inorganic fiber is boron.
Claim 19
Dependent Claim
13 words
The method according to claim 1 wherein said inorganic fiber is silicon carbide.
Claim 20
Dependent Claim
13 words
The method according to claim 3 wherein said inorganic fiber is silicon carbide.
Claim 21
Dependent Claim
13 words
The method according to claim 1 wherein said inorganic fiber is boron carbide.
Claim 22
Dependent Claim
13 words
The method according to claim 3 wherein said inorganic fiber is boron carbide.
Claim 23
Dependent Claim
12 words
The method according to claim 1 wherein said inorganic fiber is beryllium.
Claim 24
Dependent Claim
12 words
The method according to claim 3 wherein said inorganic fiber is beryllium.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-10-24 | 1998-04-25 | 1998-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-24 | 2002-04-25 | 2002-10-25 | $3760.00 | Window Closed / Lapsed |
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