Metal fusion bonding – Process – Metal to nonmetal with separate metallic filler
Patent
1989-03-17
1989-11-28
Godici, Nicholas P.
Metal fusion bonding
Process
Metal to nonmetal with separate metallic filler
228239, 22826312, 65 5922, B23K 3102
Patent
active
048832170
ABSTRACT:
A new and improved method of bonding a bonded ceramic-metal article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquids temperature of the brazing alloy for a period of about 5 minutes.
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Dunn Edmund M.
Kang Shinhoo
Wei George C.
Ericson Ivan L.
Godici Nicholas P.
GTE Laboratories Incorporated
Heinrich Samuel M.
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