Inventors:
Michael Edward Badding - Campbell NY, US
Sasha Marjanovic - Painted Post NY, US
Linda Ruth Pinckney - Corning NY, US
Dell Joseph St Julien - Watkins Glen NY, US
Assignee:
Corning Incorporated - Corning NY
International Classification:
C03C 10/04
C03C 8/24
US Classification:
501 5, 501 8, 501 9, 501 15, 501 21, 501 26
Abstract:
The invention is directed to highly crystalline, frit-sintered glass-ceramic materials and seals made using them that are suitable for solid oxide fuel cell applications. The seals have a coefficient of thermal expansion in the range of 70-130×10 C. , preferably 85-115×10 C. The glass-ceramic materials have a crystalline component and a glass component, the crystalline component being>50% of the glass-ceramic and the glass component being75%. Regarding the crystalline component only,>50% of the crystals in the crystalline component of the glass-ceramic has a structure selected from the structural groups represented by walstromite, cyclowollastonite, μ-(Ca,Sr)SiO, kalsilite, kaliophilite and wollastonite (the primary crystalline phase) and the remaining