US4774052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composites having an intermetallic containing matrix
Assignee: Lockheed Martin Corp
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Filing: 1986-06-13
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Granted: 1988-09-27
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Expires: 2006-06-13
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
2026-10-26 02:41
CPC Classifications
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; C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/65; C22; C22C; C22C1/00; C22C1/10; C22C1/1005; C22C1/1015; C22C1/1036; C22C1/1047; C22C1/1052; C22C1/1068; C22C29/00; C22C32/00; C22C47/00; C22C47/02; C22C47/06; C22C47/08; C22C49/00; C22C49/14
Claims Analysis
Total Claims: 70
Claim 1
Independent Claim
102 words
A method for the preparation of intermetallic-second phase composite materials, said method comprising: contacting reactive precursors of a second phase material and a solvent matrix material comprising an intermetallic or precursors thereof at a temperature sufficient to permit diffusion of said second phase precursors into said solvent matrix materials and to initiate the exothermic reaction of said second phase precursors; permitting the temperature to rise as a result of said reaction to enable solvent assisted formation of the second phase in said solvent matrix material; and recovering a composite comprising an intermetallic containing matrix having particles of said second phase dispersed therein.
Claim 2
Independent Claim
102 words
A method for the preparation of intermetallic-second phase composite materials, said method comprising: contacting reactive precursors of a second phase material and a solvent matrix material comprising an intermetallic or precursors thereof at a temperature sufficient to permit diffusion of said second phase precursors into said solvent matrix materials and to initiate the exothermic reaction of said second phase precursors; permitting the temperature to rise as a result of said reaction to enable solvent assisted formation of the second phase in said solvent matrix material; and recovering a composite comprising an intermetallic containing matrix having particles of said second phase dispersed therein.
Claim 3
Dependent Claim
52 words
A method as set forth in claim 1, wherein said reactive precursors of said intermetallic are aluminum, nickel, copper, titanium, cobalt, iron, platinum, gold, silver, niobium, tantalum, boron, lead, zinc, molybdenum, yttrium, hafnium, tin, tungsten, lithium, magnesium, beryllium, thorium, silicon, chromium, vanadium, zirconium, manganese, scandium, lanthanum, rare earth elements, or alloys thereof.
Claim 4
Dependent Claim
21 words
A method as set forth in claim 2, wherein said second phase comprises an intermetallic material other than the matrix intermetallic.
Claim 5
Dependent Claim
15 words
A method as set forth in claim 1, wherein said second phase comprises a ceramic.
Claim 6
Dependent Claim
23 words
A method as set forth in claim 1, wherein the reactive second phase precursors and intermetallic precursors are each provided as individual elements.
Claim 7
Dependent Claim
21 words
A method as set forth in claim 1, wherein said reactive second phase precursors and intermetallic precursors are provided as alloys.
Claim 8
Dependent Claim
33 words
A method as set forth in claim 1, wherein at least one reactive precursor of said second phase material is a transition metal of the third to sixth group of the Periodic Table.
Claim 9
Dependent Claim
54 words
A method as set forth in claim 1, wherein at least one second phase precursor is aluminum, titanium, silicon, boron, carbon, sulfur, molybdenum, tungsten, vanadium, zirconium, niobium, cobalt, nitrogen, oxygen, nickel, iron, magnesium, beryllium, manganese, zinc, lithium, yttrium, hafnium, tantalum, chromium, thorium, a refractory metal, a rare earth metal, or a reactive compound thereof.
Claim 10
Dependent Claim
24 words
A method as set forth in claim 8, wherein at least one intermetallic precursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 11
Dependent Claim
23 words
A method as set forth in claim 9, wherein said second phase precursors are titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, or carbon.
Claim 12
Dependent Claim
15 words
A method as set forth in claim 10, wherein the intermetallic is Ti 3 Al.
Claim 13
Dependent Claim
17 words
A method as set forth in claim 11, wherein the second phase precursors are titanium and boron.
Claim 14
Dependent Claim
17 words
A method as set forth in claim 11, wherein the second phase precursors are titanium and carbon.
Claim 15
Dependent Claim
13 words
A method as set forth in claim 10, wherein the intermetallic is TiAl.
Claim 16
Dependent Claim
17 words
A method as set forth in claim 14, wherein the second phase precursors are titanium and boron.
Claim 17
Dependent Claim
17 words
A method as set forth in claim 14, wherein the second phase precursors are titanium and carbon.
Claim 18
Dependent Claim
15 words
A method as set forth in claim 10, wherein the intermetallic is TiAl 3 .
Claim 19
Dependent Claim
17 words
A method as set forth in claim 17, wherein the second phase precursors are titanium and boron.
Claim 20
Dependent Claim
17 words
A method as set forth in claim 17, wherein the second phase precursors are titanium and carbon.
Claim 21
Dependent Claim
13 words
A method as set forth in claim 10, wherein the intermetallic is NiAl.
Claim 22
Dependent Claim
15 words
A method as set forth in claim 10, wherein the intermetallic is Ni 3 Al.
Claim 23
Dependent Claim
17 words
A method as set forth in claim 21, wherein the second phase precursors are titanium and boron.
Claim 24
Dependent Claim
17 words
A method as set forth in claim 21, wherein the second phase precursors are zirconium and carbon.
Claim 25
Dependent Claim
17 words
A method as set forth in claim 21, wherein the second phase precursors are zirconium and boron.
Claim 26
Dependent Claim
15 words
A method as set forth in claim 1, wherein plural second phase materials are produced.
Claim 27
Dependent Claim
24 words
A method as set forth in claim 25, wherein the second phase precursors are compounds selected from boron carbide, boron nitride, and boron oxide.
Claim 28
Dependent Claim
21 words
A method as set forth in claim 25, wherein one of said second phase materials is an oxide or a nitride.
Claim 29
Dependent Claim
23 words
A method as set forth in claim 27, wherein said oxide is an oxide of yttrium, cerium, erbium, or a rare earth element.
Claim 30
Dependent Claim
19 words
A method as set forth in claim 1, wherein said intermetallic containing matrix comprises a mixture of intermetallic materials.
Claim 31
Dependent Claim
25 words
A method as set forth in claim 1, wherein said reactive second phase precursors and said solvent matrix material are added to molten intermetallic material.
Claim 32
Dependent Claim
23 words
A method as set forth in claim 30, wherein said molten intermetallic material is other than the intermetallic of the solvent matrix material.
Claim 33
Dependent Claim
25 words
A method as set forth in claim 1, wherein said reactive second phase precursors and said solvent matrix material are added to molten intermetallic precursor.
Claim 34
Dependent Claim
19 words
A method as set forth in claim 1, wherein at least one of said intermetallic precursors is a compound.
Claim 35
Dependent Claim
18 words
A method as set forth in claim 1, wherein at least one second phase precursor is a hydride.
Claim 36
Independent Claim
136 words
A method for forming an intermetallic material having a finely divided second phase material precipitated in-situ therein, said method comprising the steps of: contacting reactive precursors of second phase material, in the presence of reactive precursors of intermetallic material in which said second phase material precursors are more soluble than said second phase material; raising the temperature of said reactive precursors to a temperature at which sufficient diffusion of said precursors of said second phase materials into at least one of said reactive precursors of said intermetallic material occurs to cause the initiation of a solvent assisted exothermic reaction of the precursors of said second phase, thereby forming second phase particles in-situ; forming the intermetallic material from the precursors thereof; and recovering a composite comprising an intermetallic containing matrix with said second phase particles dispersed therein.
Claim 37
Independent Claim
136 words
A method for forming an intermetallic material having a finely divided second phase material precipitated in-situ therein, said method comprising the steps of: contacting reactive precursors of second phase material, in the presence of reactive precursors of intermetallic material in which said second phase material precursors are more soluble than said second phase material; raising the temperature of said reactive precursors to a temperature at which sufficient diffusion of said precursors of said second phase materials into at least one of said reactive precursors of said intermetallic material occurs to cause the initiation of a solvent assisted exothermic reaction of the precursors of said second phase, thereby forming second phase particles in-situ; forming the intermetallic material from the precursors thereof; and recovering a composite comprising an intermetallic containing matrix with said second phase particles dispersed therein.
Claim 38
Dependent Claim
24 words
A method as set forth in claim 35, wherein at least one intermetallic precursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 39
Dependent Claim
29 words
A method as set forth in claim 36, wherein at least one of said second phase precursors is selected from titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, and carbon.
Claim 40
Dependent Claim
18 words
A method as set forth in claim 35, wherein said reactive precursors are added to molten intermetallic material.
Claim 41
Dependent Claim
24 words
A method as set forth in claim 38, wherein said molten intermetallic material is other than the intermetallic formed by the reactive intermetallic precursors.
Claim 42
Dependent Claim
18 words
A method as set forth in claim 35, wherein said reactive precursors are added to molten intermetallic precursor.
Claim 43
Independent Claim
91 words
A method for making intermetallic-second phase composites, said method comprising: contacting second phase forming constituents and an intermetallic material in which said second phase forming constituents are more soluble than the second phase; heating to a temperature at which sufficient diffusion of said reactive second phase forming constituents into an intermetallic derived solvent material occurs to cause an exothermic solvent assisted reaction of said constituents, thereby precipitating second phase particles in-situ in said intermetallic derived solvent; and recovering a material comprising finely divided second phase particles in an intermetallic containing matrix.
Claim 44
Independent Claim
91 words
A method for making intermetallic-second phase composites, said method comprising: contacting second phase forming constituents and an intermetallic material in which said second phase forming constituents are more soluble than the second phase; heating to a temperature at which sufficient diffusion of said reactive second phase forming constituents into an intermetallic derived solvent material occurs to cause an exothermic solvent assisted reaction of said constituents, thereby precipitating second phase particles in-situ in said intermetallic derived solvent; and recovering a material comprising finely divided second phase particles in an intermetallic containing matrix.
Claim 45
Dependent Claim
22 words
A method as set forth in claim 41, wherein the temperature is at least about the melting temperature of said intermetallic material.
Claim 46
Dependent Claim
24 words
A method as set forth in claim 41, wherein at least one intermetallic precursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 47
Dependent Claim
30 words
A method as set forth in claim 43, wherein at least one of said second phase forming constituents is selected from titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, and carbon.
Claim 48
Dependent Claim
20 words
A method as set forth in claim 41, wherein said constituents and said intermetallic material are added to molten intermetallic.
Claim 49
Dependent Claim
21 words
A method as set forth in claim 41, wherein said constituents and said intermetallic material are added to molten intermetallic precursor.
Claim 50
Dependent Claim
25 words
A method as set forth in claim 41, wherein said second phase forming constituents and said intermetallic material are provided as premixed and compacted powders.
Claim 51
Independent Claim
134 words
A method for making intermetallic-second phase composites, said method comprising: contacting a reaction mixture consisting of second phase forming constituents and a first precursor of an intermetallic material, said second phase forming constituents being more soluble in said intermetallic precusor than said second phase; heating said reaction mixture to a temperature at which sufficient diffusion of said second phase forming constituents into said first intermetallic precursor occurs to initiate an exothermic solvent assisted reaction of said constituents and to form a second phase precipitate in-situ in said first intermetallic precursor; adding said second phase precipitate in said first intermetallic precursor to a molten mass of a second intermetallic precursor to thereby form an intermetallic having second phase particles therein; and recovering a material comprising finely divided second phase particles in an intermetallic containing matrix.
Claim 52
Independent Claim
134 words
A method for making intermetallic-second phase composites, said method comprising: contacting a reaction mixture consisting of second phase forming constituents and a first precursor of an intermetallic material, said second phase forming constituents being more soluble in said intermetallic precusor than said second phase; heating said reaction mixture to a temperature at which sufficient diffusion of said second phase forming constituents into said first intermetallic precursor occurs to initiate an exothermic solvent assisted reaction of said constituents and to form a second phase precipitate in-situ in said first intermetallic precursor; adding said second phase precipitate in said first intermetallic precursor to a molten mass of a second intermetallic precursor to thereby form an intermetallic having second phase particles therein; and recovering a material comprising finely divided second phase particles in an intermetallic containing matrix.
Claim 53
Dependent Claim
23 words
A method as set forth in claim 48, wherein the temperature is at least about the melting temperature of said first intermetallic precursor.
Claim 54
Dependent Claim
23 words
A method as set forth in claim 48, wherein said second phase precipitate in said first intermetallic precursor is added to molten intermetallic.
Claim 55
Dependent Claim
35 words
A method as set forth in claim 48, wherein a solid mass of said second intermetallic precursor is mixed with said second phase precipitate in said first intermetallic precursor, and heated to form the intermetallic.
Claim 56
Dependent Claim
27 words
A method as set forth in claim 48, wherein said reaction mixture is added to a molten mass of said first intermetallic precursor to initiate said reaction.
Claim 57
Dependent Claim
35 words
A method as set forth in claim 52, wherein a solid mass of said second intermetallic precursor is mixed with said second phase precipitate in said first intermetallic precursor, and heated to form the intermetallic.
Claim 58
Dependent Claim
23 words
A method as set forth in claim 52, wherein said second phase precipitate in said first intermetallic precursor is added to molten intermetallic.
Claim 59
Dependent Claim
20 words
A method as set forth in claim 48, wherein said reaction mixture is added directly to an intermetallic derived liquid.
Claim 60
Dependent Claim
28 words
A method as set forth in claim 48, wherein said reaction mixture is added directly to a molten mass of a second intermetallic precursor to initiate said reaction.
Claim 61
Dependent Claim
24 words
A method as set forth in claim 48, wherein at least one intermetallic precursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 62
Dependent Claim
29 words
A method as set forth in claim 57, wherein at least one of said second phase precursors is selected from titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, and carbon.
Claim 63
Independent Claim
66 words
A method for making intermetallic-second phase composites, said method comprising; adding one or more second phase precursors to a molten reaction mixture comprising an intermetallic derived solvent and at least one complementary second phase precursor; forming said second phase by an exothermic solvent assisted reaction in said molten reaction mixture; and recovering a material comprising a dispersion of second phase particles in an intermetallic containing matrix.
Claim 64
Independent Claim
66 words
A method for making intermetallic-second phase composites, said method comprising; adding one or more second phase precursors to a molten reaction mixture comprising an intermetallic derived solvent and at least one complementary second phase precursor; forming said second phase by an exothermic solvent assisted reaction in said molten reaction mixture; and recovering a material comprising a dispersion of second phase particles in an intermetallic containing matrix.
Claim 65
Dependent Claim
24 words
A method as set forth in claim 59, wherein at least one intermetallic precursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 66
Dependent Claim
23 words
A method as set forth in claim 60, wherein said second phase precursors are titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, or carbon.
Claim 67
Independent Claim
61 words
A method for making intermetallic-second phase composites, said method comprising: adding one or more second phase precursors and an intermetallic precursor to a melt of one or more intermetallic precursors and at least one complementary second phase precursor; permitting an exothermic solvent assisted reaction of the respective precursors; and recovering a dispersion of second phase particles in an intermetallic containing matrix.
Claim 68
Independent Claim
61 words
A method for making intermetallic-second phase composites, said method comprising: adding one or more second phase precursors and an intermetallic precursor to a melt of one or more intermetallic precursors and at least one complementary second phase precursor; permitting an exothermic solvent assisted reaction of the respective precursors; and recovering a dispersion of second phase particles in an intermetallic containing matrix.
Claim 69
Dependent Claim
24 words
A method as set forth in claim 62, wherein at least one intermetallic percursor is aluminum, nickel, titanium, cobalt, iron, or a refractory metal.
Claim 70
Dependent Claim
23 words
A method as set forth in claim 63, wherein said second phase precursors are titanium, zirconium, hafnium, boron, silicon, oxygen, nitrogen, or carbon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-27 | 1992-03-28 | 1992-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-27 | 1996-03-28 | 1996-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-27 | 2000-03-28 | 2000-09-27 | $7700.00 | Window Closed / Lapsed |