(1.1) DEVELOPMENT OF A SILVER-COPPER OXIDE BRAZE FOR JOININGMETALLIC AND CERAMIC COMPONENTS IN ELECTROCHEMICAL DEVICES

摘要

One of the challenges in manufacturing solid-state electrochemical devices, such as planar solidrnoxide fuel cells (pSOFC) and oxygen generators, is in hermetically sealing the ceramic andrnmetallic components such that the resulting joint remains rugged and stable under continuousrnhigh temperature operation in an oxidizing atmosphere. A well proven method of joiningrndissimilar materials is by brazing. Unfortunately many of the commercially available ceramic-tometalrnbraze alloys exhibit oxidation properties which are unacceptable for use in thesernapplications. This paper outlines an alternative brazing technique, reactive air brazing (RAB),rnthat is being developed specifically for use in an oxidizing environment.