Joining of ceramic components to metal components

Details Joining of ceramic components to metal components Joining of ceramic components to metal components

1989-07-25

1991-04-23

Heinrich, Sam

Metal fusion bonding

Process

Metal to nonmetal with separate metallic filler

228124, B23K10136, B23K10316

Patent

active

050093576

ABSTRACT:
The invention provides a method of joining together a ceramic component and a metal component. According to the invention a surface of the ceramic component is metallized with a metallizing metal to form a metallized layer thereon. The metal component is then thermocompression bonded to the metallized layer, optionally after the metallized layer is plated with a continuous metal layer. For electrochemical cell applications, the ceramic component is typically alpha-alumina, the metal of the metallized layer is typically selected from tantalum, titanium, vanadium, tungsten and molybdenum, and the metal component typically comprises, in metallic or alloy form, at least one of iron, nickel, cobalt, chromium, manganese or copper.

REFERENCES:
patent: 3009840 (1961-11-01), Emeis
patent: 3651562 (1972-03-01), Hambleton
patent: 4448853 (1984-05-01), Fischer et al.
patent: 4485150 (1984-11-01), Tsuno
patent: 4664942 (1987-05-01), Park
Patee, "Joining Ceramics to Metals and Other Materials", WRC Bulletin 178, pp. 315-357 (Nov. 1972).
Chemical Abstract No. 182037a, Columbus, Ohio, 1987, Nov., No. 20.
Lascar, "Comparison of Ceramo-Metallic Bonding by Brazing or in Solid State", Materiaux Electricite, n421, Jun.-Jul. 1987.
Air Force Propulsion Laboratory of the Research and Technology Division, Air Force Systems Command, Wright-Patterson Air Force Base, Ohio, "Ceramic to Metal Seals for High Temperature Thermionic Converters", Technical Documentary Report No. RTD-TDR-63-4109 (Oct. 1963).

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