C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
319/39, 49/81
C03C 27/00 (2006.01) C04B 37/00 (2006.01) H01M 2/08 (2006.01) H01M 10/39 (2006.01)
Patent
CA 1300677
METHOD OF FORMING GLASS BONDED JOINT OF BETA-ALUMINA AND OTHER CERAMIC AND JOINT FORMED THEREBY ABSTRACT OF THE INVENTION A method of producing a joint between a beta- alumina electrolyte tube and alpha-alumina flange with a glass bonding agent in a solid annular bead form devoid of additives such as a coupling agent or the like capable of being heated when subjected to microwave energy which com- prises utilizing in the heating step a source of microwave energy rather than a gas flame or electrical resistance heat source so as to heat the beta-alumina tube by microwave energy for a time period sufficient to enable the heat generated in the beta-alumina tube to be conducted tog lass bead and the alpha-alumina flange and heat the glass bead to a temperature above the glass deformation point, and allowing the tube to cool to solidify the glass bead in intimately penetrating relation to the surfaces of the beta-alumina tube and alpha-alumina flange engaged thereby so that the glass forms a bond between the beta-alumina tube and the alpha- alumina flange characterized by a fusion of the glass within the engaged beta-alumina and alpha-alumina.
560372
Abb Advanced Battery Systems Inc.
Gowling Lafleur Henderson Llp
Pekarsky Alina V.
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