Lightweight ceramic composition

Details Lightweight ceramic composition Lightweight ceramic composition

1980-04-21

1982-03-09

Meros, Edward J.

Compositions: ceramic

Ceramic compositions

Pore-forming

264 42, C04B 2100, C04B 2102

Patent

active

043189962

ABSTRACT:
This invention provides a lightweight ceramic composition which is characterized by an average bulk density between about 10-105 PCF, and a compressive strength between about 300-10,000 psi.
In a preferred embodiment, this invention provides an extruded structural cellular clay product having pores which are substantially non-interconnected and elongated in a single directional configuration, and having a density gradient in at least one cross-sectional plane, in which gradient the higher density is in proximity to the outer surfaces.

REFERENCES:
patent: 1743803 (1930-01-01), Arensberg et al.
patent: 1761108 (1930-06-01), Desmarquest
patent: 2996389 (1961-08-01), Fernhof
patent: 3310614 (1967-03-01), Burkett et al.
patent: 3565647 (1971-02-01), Magder
patent: 3700470 (1972-10-01), Barton
patent: 3729328 (1973-04-01), Magder
patent: 3944425 (1976-03-01), Magder
patent: 4112033 (1978-09-01), Lingl
Norton, F. H.; Elements of Ceramics, 2nd Edition, Addison-Wesley _Publication 10974, p. 105.
Foster, H. D., "Manufacture of Lightweight Products", Bulletin American _Ceramic Society 19(12), pp. 468-473, (1940).
Nicholson, C. et al., "Cellulated Ceramics for the Structural Clay Products Industry" Journal American Ceramic Society, 36(4), pp. 127-136 (1953).

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