High-strength thin-walled honeycombs

Details High-strength thin-walled honeycombs High-strength thin-walled honeycombs

2007-10-09

2007-10-09

McNeil, Jennifer (Department: 1775)

Stock material or miscellaneous articles

Structurally defined web or sheet

Honeycomb-like

C428S188000, C422S180000, C502S527140, C502S527190

Reexamination Certificate

active

11012515

ABSTRACT:
Thin-walled ceramic honeycomb products of improved resistance to isostatic pressure damage are provided wherein the skin layers disposed over the cellular matrix portions of the honeycombs are formed of ceramic materials differing from the materials of the matrix as to composition, density, or other physical parameters effective to increase the elastic modulus of the skin layer relative to the cellular matrix and thereby reduce pressure-induced tangential strain in regions of the matrix adjacent to the skin layers.

REFERENCES:
patent: 4233351 (1980-11-01), Okumura et al.
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patent: 5629067 (1997-05-01), Kotani et al.
patent: 5714228 (1998-02-01), Beckmeyer et al.
patent: 6159431 (2000-12-01), Inoue et al.
patent: 6596056 (2003-07-01), Domesle et al.
patent: 7112050 (2006-09-01), Bernas et al.
patent: 2002/0192426 (2002-12-01), Ichikawa et al.

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