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Diffusion Bonding of Dissimilar Ceramics Disclosure Number: IPCOM000068996D
Original Publication Date: 1978-Mar-01
Included in the Prior Art Database: 2005-Feb-20

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Daniels, VD Head, NL Herron, CC Fritch, JJ [+details]


In known bonding of ceramics, including diffusion bonding, a layer of glass or powder is normally used between the blocks of ceramics to effect the bond. U.S. Patent 3,639,701, for instance, discloses a magnetic head assembly where a glass is sputter-deposited on mating ferrite ceramic surfaces. The bond at the gap is formed by diffusion bonding. Diffusion bonding of metals to ceramics and of similar ceramics is also known (see U.S. Patent 3,672,045). A magnetic head construction using diffusion bonding of shields is disclosed in IBM Technical Disclosure Bulletin 19, 397 (July 1976).