Production of spherical ceramic powders

Details Production of spherical ceramic powders Production of spherical ceramic powders

1990-05-08

1991-11-12

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

423628, 502 8, C03C 3145

Patent

active

050647830

ABSTRACT:
A sol-gel method is employed to produce ceramic oxide spheres from precursors thereto. An alkanol of the sol precursor(s) is introduced to an immiscible hydrophilic liquid phase to cause spheroidizing of the sol. Moisture, which initially may be present in the immiscible liquid or may subsequently be added, is employed to effect hydrolysis of the precursor to oxide form. The ceramic oxide spheres are recovered from the liquid phase and calcined to their final form.

REFERENCES:
patent: 3943070 (1976-03-01), Mitsche
patent: 3993589 (1976-11-01), Andre et al.
patent: 4273735 (1981-06-01), Jaques et al.
patent: 4318896 (1982-03-01), Schoonover
patent: 4911903 (1990-03-01), Unger et al.

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