Method of making a holder of ceramic material

Details Method of making a holder of ceramic material Method of making a holder of ceramic material

1992-04-29

1995-01-31

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By mechanically introducing gas into material

264 63, 264317, C04B 3332

Patent

active

053857003

ABSTRACT:
The invention involves a method of making a holder of solid ceramic material by locating a core in a mass of particulate ceramic material, consolidating the particulate material around the core, removing the core from the particulate material to leave a green artifact having a cavity, and sintering the green artifact. The core is shaped and the particulate material is arranged such that the core is in the form of a thin slab between a pair of layers of the particulate material. After sintering, the cavity comprises a thin gap between opposed plates of sintered ceramic material. The slab has openings therethrough which are filled with the particulate material, which, after sintering, forms a bridge across the gap, between the associated plates and sintered thereto.

REFERENCES:
patent: 2448930 (1948-09-01), Stokes
patent: 3907949 (1975-09-01), Carlson
patent: 4975225 (1990-12-01), Vivaldi et al.
patent: 5051324 (1991-09-01), Bones et al.
patent: 5061580 (1991-10-01), Wedlake et al.
International Search Report, dated Jan. 15, 1992, based on corresponding British Patent Application No. 9209526.4.
International Search Report, dated Jun. 12, 1992, based on corresponding British Patent Application No. 9209526.4.

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