PRODUCTION OF CERAMIC LAMINATED SINTERED COMPACT AND LAMINATE OF GREEN COMPACT

摘要

PURPOSE: To improve the joining state of a joining interface between a porous material and a dense material of ceramics and firmly join both by preventing both from peeling when sintering in producing a laminated sintered compact of both. CONSTITUTION: A laminate 5 having a green compact 4 of a porous material, a green compact 1 of a dense material and a joining material 3 therebetween is obtained. Carbon and an organic compound as cellulating materials are contained in the green compact 4 of the porous material. The laminate 5 is press formed to provide a pressed compact, which is then integrally sintered to produce a joined material of the porous material to the dense material. Cellulose can be contained in the green compact 1 of the dense material. A body for the porous material and a body for the dense material are simultaneously and continuously fed to one extruder die to produce the laminate in which each green compact of the porous and dense materials is laminated and integrated. The resultant laminate can then be integrally sintered.