Method for manufacturing ceramic products

Details Method for manufacturing ceramic products Method for manufacturing ceramic products

1990-08-24

1992-04-21

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 65, 264 67, C04B 4100

Patent

active

051065517

ABSTRACT:
After hydrostatic pressure is applied to a formed ceramic material, the hydrostatic-pressure-applied formed ceramic material is calcined in such a temperature that shrinkage after calcination is less than one per cent. The obtained calcined ceramics has an average pore size of 0.04-0.3 .mu.m and a total pore volume of 0.1-0.3 cc/g and a four-point bending strength of 2-20 kg/mm.sup.2. The calcined ceramics is worked wet by machines to a desired shape, and afterwards the shaped ceramic material is sintered to manufacture a ceramic product.

REFERENCES:
patent: 4550004 (1985-10-01), Mizuno et al.
patent: 4579705 (1986-04-01), Matsuoka
patent: 4834926 (1989-05-01), Iwasaki et al.
patent: 4940843 (1990-07-01), Adachi et al.
Reports of Science Lecture Meeting, Seiki Gakkai (Autumn Meeting, 1985), P173-174, "511 Working and Machining of Calcined Ceramics".

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