Claims
- 1. A slurry for coating metallic or ceramic and refractory surfaces, comprising:
- a liquid suspending medium selected from the group consisting of monoaluminum phosphate, and colloidal silica; and
- particulate constituents suspended in said medium capable of undergoing exothermic reaction by combustion synthesis when ignited, said constituents being selected from the group consisting of from 75% to 85% titanium, and 15% to 25% crystalline carbon; from 75% to 85% titanium, and 15% to 25% amorphous carbon; from 60% to 68% titanium, and 32% to 40% aluminum; from 35% to 41% aluminum, 30% to 36% titanium dioxide, and 27% to 31% boron oxide; from 50% to 97.5% aluminum oxide, 2% to 25% titanium, and 0.5% to 25% amorphous carbon; and mixtures thereof.
- 2. The slurry of claim 1, wherein said particulate constituents have an average particle size of less than 53 microns (.about.270 mesh screen).
- 3. The slurry of claim 1, wherein the particulate constituent is from 75% to 85% titanium, and 15% to 25% crystalline carbon or from 75% to 85% titanium, and 15% to 25% amorphous carbon, and wherein the average particle size of titanium is greater than that of crystalline carbon, if present.
- 4. The slurry of claim 1, wherein about 1 part by weight of said particulate constituents is dispersed uniformly in about 1 to 2 parts by volume of said liquid suspending medium.
- 5. A slurry for joining metallic or ceramic surfaces, comprising:
- a liquid suspending medium selected from the group consisting of monoaluminum phosphate, and colloidal silica; and
- particulate constituents suspended in said medium capable of undergoing exothermic reaction by combustion synthesis when ignited, said constituents being selected from the group consisting of from 28% to 32% titanium dioxide, 25% to 27% boron oxide, 32% to 35% aluminum, 3% to 4% titanium, 1.5% to 2.0% boron, 3.8% to 4.5% nickel, and 0.7% to 1.1% phosphorous; from 60% to 70% titanium, and 30% to 40% boron; from 30% to 35% titanium, 15% to 20% boron, 38% to 44% nickel, and 8% to 10% phosphorus; from 12% to 20% titanium dioxide, 10% to 16% boron oxide, 15% to 20% aluminum, 0 to 10% iron, 15% to 7.5% titanium, 8% to 9.5% boron, 19% to 22% nickel, and 4% to 5% phosphorus; from 67% to 70% chromic oxide, 6.5% to 8% carbon, and 23% to 26% aluminum; and mixtures thereof.
- 6. The slurry of claim 5, wherein said particulate constituents have an average particle size of less than about 53 microns (.about.270 mesh screen).
- 7. The slurry of claim 1 or 5, including particulate diluents selected from the group consisting of aluminum, iron, copper, silver, borides, carbides, nitrides, and silicides of titanium, niobium, molybdenum and chromium, and mixtures thereof.
- 8. The slurry of claim 1 or 5, wherein from about 8 to about 12 parts by weight of said particulate constituents are dispersed uniformly in about 2 to about 5 parts by volume of said liquid suspending medium.
Parent Case Info
This is a continuation of application Ser. No. 07/787,091, filed Nov. 4, 1991, now abandoned, which is a continuation-in-part of application Ser. No. 07/753,216 filed Aug. 30, 1991, abandoned.
US Referenced Citations (3)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0240525 |
Mar 1969 |
SUX |
Non-Patent Literature Citations (3)
Entry |
Chemical Abstracts, vol. 104, No. 18 Columbus, Ohio, US; abstract No. 18 (Dec. 1985) Y. Miyamoto et al. `Bonding of metal and ceramics` see abstract & JP, A, 60 251 177 (Osaka University et al.). |
Chemical Abstracts, vol. 114, No. 8 Columbus, Ohio, US; abstract No. 67830m, E. Udagawa "Formation of titanium diboride sintered layer on ceramic or metal substrates" see abstract & JP, A, 02 155 728 (Fujitsu Ltd.) (Dec. 1988). |
Patent Abstracts of Japan vol. 11, No. 394 (C-465) (2841) (23 Dec. 1987) & JP, A, 62 156 271 (Agency of Industrial Science & Technology) see abstract. |
Continuations (1)
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Date |
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Parent |
787091 |
Nov 1991 |
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Continuation in Parts (1)
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753216 |
Aug 1991 |
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