Porous Articles

Details Porous Articles Porous Articles

1995-12-20

1996-10-08

Group, Karl

Compositions: ceramic

Ceramic compositions

Pore-forming

501 80, 501 85, 252306, 252307, 252310, C04B 3800, C04B 3810

Patent

active

055631061

ABSTRACT:
A method of making a porous refractory article and a dispersion of particles in a liquid carrier, the method involving forming a dispersion of particles in a liquid carrier, introducing gas into the dispersion, removing the liquid carrier to provide a solid article having pores derived from the bubbles and wherein the dispersion has a critical viscosity below the level at which the introduction of gas cannot take place and above the level which entrapped gas bubbles will tend to escape and with the dispersion having the same critical viscosity.

REFERENCES:
patent: 3041190 (1962-06-01), Griffith et al.
patent: 3148996 (1964-09-01), Vukasovich et al.
patent: 3737332 (1973-06-01), Sennett et al.
patent: 4318996 (1982-03-01), Madger
patent: 4341561 (1982-07-01), Britt et al.
patent: 4375516 (1983-03-01), Barrell
patent: 4505866 (1985-03-01), Oguri et al.
patent: 4547469 (1985-10-01), Jackson et al.
patent: 4707312 (1987-11-01), Bajaj

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