Method of making thin refractory flakes

Details Method of making thin refractory flakes Method of making thin refractory flakes

1989-04-17

1991-01-15

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501127, 501133, 501 84, 501 66, 501 33, C04B 3502, C03C 1200

Patent

active

049853805

ABSTRACT:
Thin flakes can be made from a sol of metal oxides by a method analogous to blowing soap bubbles, preferably by directing a laminar flow of air through a narrow, annular orifice. The bubbles can be dried and broken into fragments which are fired to produce refractory flakes that can be incorporated into protective coatings. The resulting coatings can be pearlescent while also affording good resistance to abrasion and to corrosive materials.

REFERENCES:
patent: 3795524 (1974-03-01), Sowman
patent: 4235742 (1980-11-01), Anderson et al.
patent: 4349456 (1982-09-01), Sowman
patent: 4671909 (1987-06-01), Torobin
patent: 4757036 (1988-07-01), Kaar

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