Patent US466761A successfully refreshed from Google Patents.
Patent US4919718A successfully refreshed from Google Patents.
US4919718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ductile Ni3 Al alloys as bonding agents for ceramic materials
Assignee: Dow Chemical Co
•
Filing: 1988-01-22
•
Granted: 1990-04-24
•
Expires: 2008-01-22
Abstract
Abstract An improved ceramic-metal composite comprising a mixture of a ceramic material with a ductile intermetallic alloy, preferably Ni 3 Al.
Inventors
- 👤 Terry N. Tiegs
- 👤 Robert R. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:54
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; C22C29/08; C22C29/067; B; B22; B22F; B22F2998/00; B22F2998/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
34 words
A composition consisting essentially of a ceramic material and a ductile metal alloy selected from the group consisting of alloys of Ni 3 Al, TiSi 2 , NiSi, MoSi 2 , and mixtures thereof.
Claim 2
Dependent Claim
34 words
A composition consisting essentially of a ceramic material and a ductile metal alloy selected from the group consisting of alloys of Ni 3 Al, TiSi 2 , NiSi, MoSi 2 , and mixtures thereof.
Claim 3
Dependent Claim
22 words
The composition of claim 1 comprising from about 5 to about 20 weight percent metal alloy, the balance being a ceramic material.
Claim 4
Dependent Claim
16 words
The composition of claim 2 wherein the ceramic material is a metal carbide, nitride or oxide.
Claim 5
Dependent Claim
12 words
The composition of claim 3 wherein the ceramic material is a carbide.
Claim 6
Dependent Claim
11 words
The composition of claim 4 wherein the ceramic material is WC.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein the alloy comprises a ductile Ni 3 Al alloy.
Claim 8
Dependent Claim
17 words
The composition of claim 1 wherein the alloy contains a sufficient amount of boron to increase ductility.
Claim 9
Dependent Claim
26 words
The composition of claim 1 wherein the alloy contains a sufficient amount of iron, or a rare earth element or mixtures thereof to increase hot fabricability.
Claim 10
Dependent Claim
25 words
The composition of claim 1 wherein the alloy contains a sufficient amount of a Group IVB element or mixtures thereof to increase high temperature strength.
Claim 11
Dependent Claim
9 words
An article prepared from the composition of claim 1.
Claim 12
Dependent Claim
9 words
An article prepared from the composition of claim 5.
Claim 13
Dependent Claim
9 words
An article prepared from the composition of claim 6.
Claim 14
Dependent Claim
14 words
The composition of claim 6 wherein the ceramic material is a refractory metal carbide.
Claim 15
Dependent Claim
9 words
An article prepared from the composition of claim 13.
Claim 16
Dependent Claim
118 words
A cemented carbide consisting essentially of: (a) from about 80 to about 95 weight percent of a refractory metal carbide; and (b) from about 5 to about 20 weight percent of a ductile Ni 3 Al alloy consisting essentially of from about 15 to about 24 atomic percent Al; from about 0 to about 10 atomic percent Cr; from about 0.05 to about 0.4 atomic percent B; from about 0 to about 16 atomic percent of at least one of the metals selected from Fe and rare earth elements; from about 0 to about 2.0 atomic percent of at least one Group IBV element; and from about 0 to about 0.5 atomic percent Mo, the balance being nickel.
Claim 17
Dependent Claim
118 words
A cemented carbide consisting essentially of: (a) from about 80 to about 95 weight percent of a refractory metal carbide; and (b) from about 5 to about 20 weight percent of a ductile Ni 3 Al alloy consisting essentially of from about 15 to about 24 atomic percent Al; from about 0 to about 10 atomic percent Cr; from about 0.05 to about 0.4 atomic percent B; from about 0 to about 16 atomic percent of at least one of the metals selected from Fe and rare earth elements; from about 0 to about 2.0 atomic percent of at least one Group IBV element; and from about 0 to about 0.5 atomic percent Mo, the balance being nickel.
Claim 18
Dependent Claim
19 words
The cemented carbide of claim 15 wherein the Group IVB element is selected from Hf, Zr, and mixtures thereof.
Claim 19
Dependent Claim
13 words
The cemented carbide of claim 15 wherein the rare earth element is cerium.
Claim 20
Dependent Claim
53 words
A composition comprising a ceramic material and a ductile metal alloy selected from the group consisting of alloys of Ni 3 Al, TiSi 2 , NiSi, MoSi 2 , and mixtures thereof, said metal alloy containing a sufficient amount of iron, or a rare earth element, or mixtures thereof to increase hot fabricability.
Claim 21
Dependent Claim
53 words
A composition comprising a ceramic material and a ductile metal alloy selected from the group consisting of alloys of Ni 3 Al, TiSi 2 , NiSi, MoSi 2 , and mixtures thereof, said metal alloy containing a sufficient amount of iron, or a rare earth element, or mixtures thereof to increase hot fabricability.
References Cited (Backward Citations)
CA910087A
Cited
US2974039A
Cited
US2957232A
Cited
US2823988A
Cited
US3000734A
Cited
US2884688A
Cited
US3524744A
Cited
US3520675A
Cited
US3723092A
Cited
US3591362A
Cited
US3785801A
Cited
US3728088A
Cited
US3676161A
Cited
CA931982A
Cited
US3623849A
Cited
US3809545A
Cited
US3660049A
Cited
US3809546A
Cited
US3914507A
Cited
US3778249A
Cited
US3916497A
Cited
US3954419A
Cited
US4140528A
Cited
US4226644A
Cited
US4275124A
Cited
US4497660A
Cited
US4362696A
Cited
US4342595A
Cited
US4377553A
Cited
US4466829A
Cited
US4572738A
Cited
US4461741A
Cited
US4494987A
Cited
US4478791A
Cited
US4557893A
Cited
US4711761A
Cited
US4722828A
Cited
US4612165A
Cited
US4612165B1
Cited
US4606888A
Cited
US4731221A
Cited
US4596354A
Cited
US4609528A
Cited
US4613480A
Cited
US4613368A
Cited
US4839140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |