Metal fusion bonding – Process – Metal to nonmetal with separate metallic filler
Patent
1986-11-20
1987-11-03
Godici, Nicholas P.
Metal fusion bonding
Process
Metal to nonmetal with separate metallic filler
228124, 228208, 228254, 22826312, B23K 3102
Patent
active
047038845
ABSTRACT:
A two-stage bonding technique for bonding high density silicon nitride and other ceramic materials to stainless steel and other hard metals, and multilayered ceramic-metal composites prepared by the technique are disclosed. The technique involves initially slurry coating a surface of the ceramic material at about 1500.degree. C. in a vacuum with a refractory material and the stainless steel is then pressure bonded to the metallic coated surface by brazing it with nickel-copper-silver or nickel-copper-manganese alloys at a temperature in the range of about 850.degree. to 950.degree. C. in a vacuum. The two-stage bonding technique minimizes the temperature-expansion mismatch between the dissimilar materials.
REFERENCES:
patent: 2972808 (1961-02-01), Litton
patent: 3915369 (1975-10-01), Schmidt-Bruecken et al.
patent: 4055451 (1977-10-01), Cockbein et al.
patent: 4131459 (1978-12-01), Fletcher et al.
patent: 4263353 (1981-04-01), Patel
patent: 4293619 (1981-10-01), Landingham et al.
patent: 4325647 (1982-04-01), Maier et al.
patent: 4343865 (1982-08-01), Graham
patent: 4347089 (1982-08-01), Loehman
patent: 4394170 (1983-07-01), Sawaoka
patent: 4404262 (1983-09-01), Watmough
patent: 4469658 (1984-09-01), Kimura
patent: 4470537 (1981-09-01), Diem et al.
patent: 4492737 (1985-01-01), Conolly
patent: 4505418 (1985-03-01), Neidig et al.
patent: 4553472 (1985-11-01), Munro et al.
patent: 4614689 (1986-09-01), Ikeda et al.
patent: 4626451 (1986-12-01), Tanaka et al.
Metals Handbook, 8th edition, vol. 1, p. 30, 1961.
S. A. Huffsmith and R. L. Landinghm, "Pressure Bonding Molybdenum Alloy (TZM) to Reaction-Bonded Silicon Nitride", UCID-17805, Lawrence Livermore National Laboratory, Livermore, CA 94550, 6/8/84.
Ceramic Age, "High Temperature Metal Ceramic Seals", p. 15, Apr. 1954.
R. L. Landingham and T. E. Shell, "Bonding Dense Si.sub.3 N.sub.4 Components to Steel for Elevated-Temperature Cycling Applications", UCRL-90188, Lawrence Livermore National Laboratory, Livermore, California, 94550, Draft, 9/20/84.
R. L. Landingham and T. E. Shell, Extended Abstract, 6/8/64.
R. L. Landingham and T. E. Shell, Abstract, 1/6/83.
Landingham Richard L.
Shell Thomas E.
Carnahan L. E.
Godici Nicholas P.
Heinrich Samuel M.
Hightower Judson R.
Rajerder Shyamala T.
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