Ceramic material

Details Ceramic material Ceramic material

1992-11-09

1994-11-15

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

With step of cooling to a temperature of zero degrees c. or...

264 43, 264 56, C04B 3808

Patent

active

053645707

ABSTRACT:
A lightweight ceramic material is provided, useful for example as thermal insulation, kiln furniture or for metallurgical applications.
Accordingly, a lightweight fired ceramic material comprises a set porous material in the form of a freeze-gelled ceramic sol composition containing hollow microspheres bonded together in a ceramic matrix.
A method of making a lightweight fired ceramic shaped product is also provided in which a freeze-gellable ceramic sol composition is formed containing hollow microspheres, the composition is placed in a tool (21) of high thermal conductivity, the tool is cooled to irreversibly gel the sol composition, the monolith so formed is demoulded and allowed to thaw and is then fired to form a product comprising the microspheres bonded in a ceramic matrix.

REFERENCES:
patent: 2869215 (1959-01-01), Smith
patent: 2893102 (1959-07-01), Maxwell et al.
patent: 2944316 (1960-07-01), Maxwell et al.
patent: 3177161 (1965-04-01), Smith-Johannsen
patent: 3222435 (1965-12-01), Mellen, Jr. et al.
patent: 3269850 (1966-08-01), Miller
patent: 3353975 (1967-11-01), Shannon
patent: 3512571 (1970-05-01), Phelps
patent: 3816572 (1974-06-01), Roelofs
patent: 3885005 (1975-05-01), Downing et al.
patent: 4246209 (1981-01-01), Smith-Johannsen
patent: 4428895 (1984-01-01), Blasch et al.
patent: 4526734 (1985-07-01), Enomoto
patent: 4552800 (1985-11-01), Blasch et al.
patent: 4569920 (1986-02-01), Smith-Johannsen
patent: 4678758 (1987-07-01), Kamfer
patent: 4965230 (1990-10-01), Nakajima
patent: 5014763 (1991-05-01), Frank
patent: 5047181 (1991-09-01), Occhionero
Sargeant, "Holosphere--A Novel Ceramic Material"; Keith Ceramic Materials Ltd., Belvedere, Kent; pp. 132-135.
Green, "Fabrication and Mechanical Properties of Lightweight Ceramics Produced by . . . ", J. Am. Ceram. Soc. 68[7] 403-409 (1985).

Affiliated with

Also associated with

Rating

Ceramic material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ceramic material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ceramic material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1095106