Patent ID: 9073787
Filing Date: 2015-07-07
Classification: C04B

Abstract:
1. A ceramic to ceramic joint comprising: a first ceramic part, wherein the first ceramic part is a direct-sintered ceramic carbide; a second ceramic part, wherein the second ceramic part is a direct-sintered ceramic carbide; and an aluminum-initiated joint region formed from an aluminum joint initiator having a thickness between about 5 μm and about 1270 μm, said joint region joining the first and second ceramic parts, wherein the joint region comprises chemical species from the first and second ceramic parts diffused within the joint region, wherein the first ceramic part comprises a first joint diffusion zone disposed adjacent to the joint region which comprises aluminum initiator species from the joint region diffused within the first joint diffusion zone, and wherein the second ceramic part comprises a second joint diffusion zone disposed adjacent to the joint region which comprises aluminum initiator species from the joint region diffused within the second joint diffusion zone, wherein the amount of aluminum initiator species diffused into the first and second joint diffusion zones is greater than the amount of free aluminum initiator species remaining in the joint region.