229910001719 melilite Inorganic materials 0.000 claims description 14.PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 16 PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials.239000002131 composite material Substances 0.000 claims description 20.238000000576 coating method Methods 0.000 claims description 20.239000011248 coating agent Substances 0.000 claims description 20.238000010438 heat treatment Methods 0.000 claims description 22.239000012298 atmosphere Substances 0.000 claims description 26. 238000002844 melting Methods 0.000 claims abstract description 20.238000001513 hot isostatic pressing Methods 0.000 claims abstract description 22.239000000843 powder Substances 0.000 claims abstract description 30.150000001875 compounds Chemical class 0.000 claims abstract description 38.238000005245 sintering Methods 0.000 claims abstract description 56.238000002360 preparation method Methods 0.000 title claims description 10.HQVNEWCFYHHQES-UHFFFAOYSA-N Silicon nitride Chemical compound N1234N562N351N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 70.229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 70.Assignors: MIZUTANI, MICHITAKA Application granted granted Critical Publication of US4643858A publication Critical patent/US4643858A/en Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from JP59-43577 external-priority Application filed by Kyocera Corp filed Critical Kyocera Corp Assigned to KYOCERA CORPORATION reassignment KYOCERA CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Original Assignee Kyocera Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor Michitaka Mizutani Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US06/708,087 Other languages English ( en) Google Patents Process for preparation of sintered silicon nitride bodyÄownload PDF Info Publication number US4643858A US4643858A US06/708,087 US70808785A US4643858A US 4643858 A US4643858 A US 4643858A US 70808785 A US70808785 A US 70808785A US 4643858 A US4643858 A US 4643858A Authority US United States Prior art keywords silicon nitride process according molded body oxide sintered Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4643858A - Process for preparation of sintered silicon nitride body US4643858A - Process for preparation of sintered silicon nitride body
0 Comments
Leave a Reply. |