Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Metal and nonmetal in final product
Patent
1984-04-26
1987-06-09
Kyle, Deborah L.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Metal and nonmetal in final product
156 89, 419 37, 264125, 427 97, B22F 3200
Patent
active
046719288
ABSTRACT:
Sintering of metal particles at their normal sintering temperature is inhibited by coating the metal particles with an organic material such as polyvinyl butyral, polyvinyl formvar, polyvinyl alcohol, polyacrylonitrile epoxies, urethanes and cross-linked polyvinyl butyral. The organic coating serves as a barrier preventing physical contact between metal particles during the initial phase of the sintering cycle and degrades into a carbonaceous coating followed by volatilization during the intermediate phase of the cycle permitting coalescence of the metal particles into a dense mass along with the coalescence of the glass-ceramic particles. Co-sintering of the metal particles and the glass-ceramic particles with the aid of the organic coating results in a hermetic multi-layer glass ceramic substrate free of dimensional stability problems without deleteriously affecting the electrical conductivity of the metal conductor pattern.
REFERENCES:
patent: 3266893 (1966-08-01), Duddy et al.
patent: 3341325 (1967-09-01), Cloran et al.
patent: 3510296 (1970-05-01), Bergstrom
patent: 3661571 (1972-05-01), Hintermann et al.
patent: 4055615 (1977-10-01), Ikeda
patent: 4083719 (1978-04-01), Arakawa et al.
patent: 4109377 (1978-08-01), Blazick et al.
patent: 4234367 (1980-11-01), Herron et al.
patent: 4289719 (1981-09-01), McIntosh et al.
patent: 4431449 (1984-02-01), Dillon et al.
patent: 4434134 (1984-02-01), Darrow et al.
patent: 4483905 (1984-11-01), Engstrom
Herron Lester W.
Master Raj N.
Nufer Robert W.
Coca T. Rao
International Business Machines - Corporation
Kyle Deborah L.
Wallen T. J.
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