Thermal insulation containing silica aerogel and alumina

Details Thermal insulation containing silica aerogel and alumina Thermal insulation containing silica aerogel and alumina

1978-02-13

1980-09-09

Pitlick, Harris A.

Compositions

Electrolytes for electrical devices

219464, 252 632, 428308, 428446, C04B 4302

Patent

active

042216729

ABSTRACT:
A material having good thermal insulation properties can be made from an intimate mixture of a microporous silica aerogel, a ceramic fibre material and optionally an opacifier. According to the invention alumina is added to those mixtures, e.g. in the form of alumina particles or alumina fibres constituting all or part of the ceramic fibre material. The resulting materials have a reduced tendency to sinter and consequently shrink at high temperatures.

REFERENCES:
patent: 3094385 (1963-06-01), Brisbin et al.
patent: 3634250 (1972-01-01), Commons
patent: 3833793 (1974-09-01), McWilliams et al.
patent: 3835054 (1974-09-01), Olewinski et al.
patent: 3869334 (1975-03-01), Hughes et al.
patent: 3996145 (1976-12-01), Hepburn

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