Claims
- 1. Method of joining boron nitride to a refractory at high temperatures, said method including the steps of
- (A) coating a surface of the boron nitride with a mixture of paintable consistency of molybdenum disilicide and polyisobutyl methacrylate in an organic solvent,
- (B) allowing the coated boron nitride surface to air dry, and
- (C) placing the refractory in contact with the coated boron nitride surface and firing at a temperature about 1500.degree. C. in an inert atmosphere.
- 2. Method according to claim 1 wherein the refractory is selected from the group consisting of molybdenum, tantalum, vanadium, tungsten, boron nitride, brick, silicon carbide, silica, sillimanite, and magnesite.
- 3. Method according to claim 1 wherein the refractory is silicon carbide.
- 4. Method according to claim 2 wherein the refractory is boron nitride.
- 5. Method according to claim 1 wherein the organic solvent is selected from the group consisting of xylene and acetone.
- 6. Method according to claim 5 wherein the organic solvent is xylene.
- 7. Method according to claim 5 wherein the organic solvent is acetone.
- 8. Method according to claim 1 wherein the firing in Step (C) is at about 2000.degree. C.
- 9. Method of joining a boron nitride fixture to a silicon carbide element, said method consisting of coating a surface of boron nitride with a mixture of paintable consistency of molybdenum disilicide and polyisobutyl methacrylate in acetone, allowing the coated boron nitride surface to air dry in an electric furnace at about 90.degree. to 120.degree. C., and placing the silicon carbide element in contact with the coated boron nitride surface and firing at about 2000.degree. C. in an argon atmosphere.
Government Interests
The invention described herein may be manufactured, used, and licensed by or for the Government for governmental purposes without the payment to me of any royalty thereon.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3916075 |
Dimigen et al. |
Oct 1975 |
|
4104096 |
Gass et al. |
Aug 1978 |
|