Patent ID: 9132619
Filing Date: 2015-09-15
Classification: B32B,C04B,Y10T

Abstract:
1. A method of preparing a joint between first and second articles each comprising a ceramic polymorph, the method comprising: (a) preparing a slurry comprising a preceramic polymer and a plurality of inclusions, the inclusions comprising the same ceramic polymorph as the first and second articles; (b) applying the slurry between the first and second articles; (c) curing the slurry to form a green body; (d) pyrolyzing the green body to form a solid ceramic containing the plurality of inclusions; (e) crystallizing the solid ceramic to form a crystalline matrix comprising the same ceramic polymorph as the first and second articles, the plurality of inclusions being disposed within the crystalline matrix; and (f) reinforcing the joint by applying to the crystalline matrix a substantially gas impermeable sealing layer, the substantially gas impermeable sealing layer comprising the same ceramic polymorph as the first and second articles, the substantially gas impermeable sealing layer being disposed on respective outer surfaces of the first and second articles and penetrating partially or fully into the crystalline matrix.