Abstract This invention relates to sintered, substantially glass-free, ceramic bodies, and more particularly to an improved method of producing a metallized surface on such ceramic bodies. The method includes coating a sintered ceramic body with a metallizing ink composition containing a metal from the group molybdenum, tungsten, and mixtures of each of such metals with manganese, and subsequently firing the coated ceramic body in a wet reducing atmosphere to oxidize the metal from said first-mentioned group to yield a metallic layer which is tightly bonded to the surface of the ceramic body. The oxide of the metal from said firstmentioned group bonds directly to the ceramic body which in turn mechanically adheres the metal layer, from said second-mentioned group, to the ceramic body.
A method as described in claim 1 wherein said metal powder in said first group is aluminum.
Claim 2
Dependent Claim
15 words
A method as described in claim 2 wherein said second group metal powder is molybdenum.
Claim 3
Dependent Claim
44 words
A method as described in claim 1 wherein said first group metal is aluminum in an amount of about 20 to 30 percent by weight and the metal in said second group is molybdenum in an amount of about 70- 80 percent by weight.
Claim 4
Dependent Claim
54 words
A method as described in claim 3 wherein said first group metal is aluminum in an amount of about 26 percent by weight and the metal in said second group is molybdenum in an amount of about 74 percent by weight and said coated body is held at firing temperature for about 30 minutes.