Abstract The subject matter of this invention is a composition and method for metalizing ceramic wherein the composition is a mixture containing manganese, molybdenum and silicon, at least a portion of the latter being present as molybdenum disilicide or tungsten disilicide, molybdenum disilicide being much preferred. The mixture, in powdered form, is suspended in an organic vehicle to provide a slurry which is coated onto the ceramic after which the ceramic is fired in a wet reducing atmosphere to a temperature of about 1150* C to 1450* C, the organic vehicle vaporizing during the initial phase of the firing operation. By inclusion of the disilicide in the mixture an improved metalized surface on the ceramic can be accomplished using relatively a low firing temperature.
A composition as set forth in claim 1 wherein all of the silicon is present as molybdenum disilicide.
Claim 2
Dependent Claim
48 words
A composition as set forth in claim 1 wherein said mixture consists essentially of from about 4 percent to 40 percent by weight molybdenum disilicide, from about 2 percent to 30 percent by weight elemental manganese and from about 40 percent to 90 percent by weight elemental molybdenum.
Claim 3
Dependent Claim
35 words
A composition as set forth in claim 1 wherein the mixture consists essentially of the following ingredients in the ratio indicated: 372 grams molybdenum powder, 34 grams manganese powder and 94 grams molybdenum disilicide powder.