Patent ID: 11881322
Assignee: GENERAL ATOMICS
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC G  C  Y | IPC C  G

Claim 0:
1. A method of joining and sealing a ceramic structure and an end plug, comprising:
forming a joint of the ceramic structure including a tubular structure and the end plug located inside the tubular structure using a first sealing material;
applying the first sealing material between the ceramic structure and the end plug, wherein the first sealing material includes a preceramic polymer and a plurality of inclusions;
locally heating the first sealing material applied between the ceramic structure and the end plug to form a solid ceramic from the first sealing material; and
crystallizing the solid ceramic to form a crystalline matrix comprising a ceramic polymorph that is the same as the ceramic structure and the end plug, the plurality of inclusions being disposed within the crystalline matrix,
wherein the end plug is structured to include a hole that goes through a top surface and a bottom surface of the end plug,
wherein a pin is positioned in the hole; and wherein the method comprises:
placing a second sealing material in the hole of the end plug;
applying heat to a section of the ceramic structure near the end plug to heat the second sealing material; and
applying pressure to the pin so that the pin presses the heated second sealing material in the hole to seal the end plug.