Carbon-carbon composites containing poorly graphitizing pitch as

Details Carbon-carbon composites containing poorly graphitizing pitch as Carbon-carbon composites containing poorly graphitizing pitch as

1995-05-26

1997-03-04

Lovering, Richard D.

Stock material or miscellaneous articles

Self-sustaining carbon mass or layer with impregnant or...

204294, 252502, 252510, 428902, 429217, B32B 900

Patent

active

056077700

ABSTRACT:
A unitary composite structure having improved flexural strength and a reduced coefficient of thermal expansion comprising a heterogeneous combination of a carbonaceous reinforcing material interbonded with a matrix material, wherein the said matrix material is a poorly graphitizing carbonaceous pitch containing polymerized and cross-linked aromatic components is disclosed. Graphite electrodes comprised of the poorly graphitized pitch matrix material acting as a binder and/or an impregnant are also disclosed. Processes for the preparation of the poorly graphitizing pitch, the composite structure, and particularly the graphite electrodes are disclosed as well.

REFERENCES:
patent: 3194752 (1965-07-01), Winslow
patent: 3280042 (1966-10-01), Bannikov et al.
patent: 3505090 (1970-04-01), Pinchbeck
patent: 4066737 (1978-01-01), Romovacek
patent: 4140832 (1979-02-01), Menegay
patent: 4188279 (1980-02-01), Yan
patent: 4395299 (1983-07-01), Riggs et al.
patent: 5413738 (1995-05-01), Lewis et al.
Chemical Changes During the Mild-Air Oxidation of Pitch, J. B. Barr and I. C. Lewis, Carbon vol. 16, pp. 439-444 (1978).
Chemistry of Carbonization, I. C. Lewis, Carbon, vol. 20, No. 6, pp. 519-529 (1982).
Review-Science and Technology of Graphite Maufacture, S. Ragan and H. Marsh. Journal Of Materials Science, pp. 3161-3176 (1983).

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