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TRANSIENT-LIQUID-PHASE JOINING OF CERAMICS AT LOW TEMPERATURES

United States Patent Application

20080035707
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
A novel method for bonding components has been disclosed. For bonding ceramic components the method involves placing at least three metal interlayers between the components. There is a central core metal layer and two other metal layers placed on either side of the core layer adjacent the ceramic components. The metal layers are heated to a temperature sufficient to transform at least part of the metal layers into a liquid. The temperature is maintained until the liquid begins to solidify and the first points of bonding between the components and the solidifying interlayer is established. This system can also be used to bond a ceramic component to a metal component. The metal component can be placed adjacent the central core metal layer without an intervening metal layer.
Glaeser, Andreas M. (Berkeley, CA)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (Oakland CA)
11/ 837,489
August 10, 2007
STATEMENT OF GOVERNMENTAL SUPPORT [0001] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC03-76SF00098, and more recently under DE-AC02-05CH11231. The government has certain rights in this invention.