Method of rapidly densifying a porous structure

Details Method of rapidly densifying a porous structure Method of rapidly densifying a porous structure

1993-08-11

1994-09-20

Pianalto, Bernard

Coating processes

Direct application of electrical, magnetic, wave, or...

Pretreatment of substrate or post-treatment of coated substrate

427113, 427228, 427249, 4272556, 427237, 427238, 427294, 427314, 427331, 4273742, 427544, 427547, 427590, 427591, 427595, C23C 1600

Patent

active

053487745

ABSTRACT:
Porous solid bodies, especially carbon bodies, are densified by chemical vapor deposition by establishing a thermal gradient within the body, thermally decomposing a gaseous precursor so deposit an electrically and thermally conductive deposit (e.g. carbon) within the body, and shifting the thermal gradient toward the lower temperature zone as deposition proceeds, by means of induction heating.

REFERENCES:
patent: 4472454 (1984-09-01), Houdayer et al.
Kotlensky, "A Review of CVD Carbon Infiltration of Porous Substrates", Proc. 16th. Nat. Symposium of the Soc. of Aerospace, Mat. & Proc. Eng., Apr. 1971.
Lieberman et al., "CVD/PAN Felt Carbon/Carbon Composites", Composite Materials, vol. 9, Oct. 1975, p. 337.
Lieberman & Noles, "Gas Analysis During the Chemical Vapor Deposition of Carbon" Proc. 4th Int. Conf. on Chem. Vapor Dep., Boston, Mass., Oct. 1973, pp. 19-29.
Stoller et al, "Carbon Fiber Reinforced-Carbon Marix Composites", Proc. 1971 Fall Meet. of the Met. Soc. of AIME, Detroit, Mich., Met. Soc. of AIME, 1974, pp. 69-136 (month not available).
Bristow & Hill, "The Development of a Plant for the Production of Carbon/Carbon Composites . . . ", Inst. Chem. Eng., London, England, Symp. Ser. 43, 1975, pp. 5-5 through 5-11 (month not available).

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