US4916029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composites having an intermetallic containing matrix
Assignee: Lockheed Martin Corp
•
Filing: 1987-09-29
•
Granted: 1990-04-10
•
Expires: 2007-09-29
Abstract
Abstract This invention relates to a composite material comprising an in-situ precipitated second phase in an intermetallic matrix, and to the process for making such a composite.
Inventors
- 👤 Dennis C. Nagle
- 👤 John M. Brupbacher
- 👤 Leontios Christodoulou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/05; C22C1/051; B; B22; B22F; B22F3/00; B22F3/23; B22F9/00; B22F9/02; B22F9/14; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/327; B23K35/40; B82; B82Y; B82Y30/00; C22C1/10; C22C1/1005; C22C1/1015; C22C1/1036; C22C1/1047; C22C1/1052; C22C1/1068; C22C29/00; C22C32/00; C22C32/0047; C22C32/0078; C22C47/00; C22C47/02; C22C47/06; C22C47/08; C22C49/00; C22C49/14; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
63 words
A composite material comprising a dispersion of in-situ precipitated second phase particles selected from the group consisting of borides, carbides, nitrides, and sulfides, in an intermetallic containing matrix selected from the group consisting of the aluminides, silicides, and beryllides of nickel, copper, titanium, cobalt, iron, platinum, gold, silver, niobium, tantalum, zinc, molybdenum, hafnium, tin, tungsten, lithium, magnesium, thorium, chromium, vanadium, zirconium, and manganese.
Claim 2
Dependent Claim
63 words
A composite material comprising a dispersion of in-situ precipitated second phase particles selected from the group consisting of borides, carbides, nitrides, and sulfides, in an intermetallic containing matrix selected from the group consisting of the aluminides, silicides, and beryllides of nickel, copper, titanium, cobalt, iron, platinum, gold, silver, niobium, tantalum, zinc, molybdenum, hafnium, tin, tungsten, lithium, magnesium, thorium, chromium, vanadium, zirconium, and manganese.
Claim 3
Dependent Claim
33 words
A composite as set forth in claim 1, wherein said second phase contains at least one metal selected from the group consisting of titanium, molybdenum, tungsten, vanadium, zirconium, niobium, hafnium, tantalum, and chromium.
Claim 4
Dependent Claim
22 words
A composite as set forth in claim 2, wherein said intermetallic containing matrix is an aluminide of nickel, cobalt, titanium, or iron.
Claim 5
Dependent Claim
19 words
A composite as set forth in claim 2, wherein said intermetallic containing matrix comprises a mixture of intermetallic materials.
Claim 6
Dependent Claim
17 words
A composite as set forth in claim 1, wherein at least two second phase precipitates are present.
Claim 7
Dependent Claim
18 words
A composite as set forth in claim 5, wherein at least one of said precipitates is a nitride.
Claim 8
Dependent Claim
23 words
A composite as set forth in claim 1, wherein said matrix is characterized by a grain size of less than about 5 microns.
Claim 9
Dependent Claim
26 words
A composite as set forth in claim 7, wherein said second phase is present in a concentration of from about 0.5 to about 25% by volume.
Claim 10
Dependent Claim
23 words
A composite as set forth in claim 8, wherein said second phase is ZrB 2 , and said intermetallic is Ni 3 Al.
Claim 11
Dependent Claim
23 words
A composite as set forth in claim 8, wherein said second phase is TiB 2 , and said intermetallic is Ti 3 Al.
Claim 12
Dependent Claim
54 words
A composite material comprising a dispersion of in-situ precipitated second phase particles selected from the group consisting of borides, carbides, nitrides, and sulfides, in an intermetallic containing matrix wherein said intermetallic is selected from the group consisting of aluminides of titanium, nickel, iron, cobalt, niobium, zirconium, tantalum, vanadium, molybdenum, hafnium, tungsten, chromium, and manganese.
Claim 13
Dependent Claim
54 words
A composite material comprising a dispersion of in-situ precipitated second phase particles selected from the group consisting of borides, carbides, nitrides, and sulfides, in an intermetallic containing matrix wherein said intermetallic is selected from the group consisting of aluminides of titanium, nickel, iron, cobalt, niobium, zirconium, tantalum, vanadium, molybdenum, hafnium, tungsten, chromium, and manganese.
Claim 14
Dependent Claim
27 words
A composite as set forth in claim 11, wherein said second phase is TiB 2 and said intermetallic is Ti 3 Al, TiAl, or a combination thereof.
Claim 15
Dependent Claim
27 words
A composite as set forth in claim 11, wherein said second phase is TiB 2 and said intermetallic is TiAl, TiAl 3 , or a combination thereof.
Claim 16
Dependent Claim
27 words
A composite as set forth in claim 11, wherein said second phase is ZrB 2 and said intermetallic is NiAl, Ni 3 Al, or a combination thereof.
Claim 17
Dependent Claim
27 words
A composite as set forth in claim 11, wherein said second phase is TiB 2 and said intermetallic is NiAl, Ni 3 Al, or a combination thereof.
References Cited (Backward Citations)
US3726643A
Cited
US3758298A
Cited
FR2109184A5
Cited
GB1382026A
Cited
US3961995A
Cited
US4161512A
Cited
JPS54130417A
Cited
JPS5665954A
Cited
US4431448A
Cited
US4444603A
Cited
US4478791A
Cited
JPS6089544A
Cited
US4540546A
Cited
US4661316A
Cited
US4668470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-09 | 1993-10-09 | 1994-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-09 | 1997-10-09 | 1998-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-09 | 2001-10-09 | 2002-04-10 | $7700.00 | Window Closed / Lapsed |