Method for making self supporting composite bodies

Details Method for making self supporting composite bodies Method for making self supporting composite bodies

1995-06-07

1997-10-07

Beck, Shrive

Coating processes

Coating by vapor, gas, or smoke

427249, 4272554, 419 12, 419 14, 501 87, C23C 1630

Patent

active

056745621

ABSTRACT:
This invention relates generally to a novel directed metal oxidation process which is utilized to produce self-supporting bodies. In some of the more specific aspects of the invention, a parent metal (e.g., a parent metal vapor) is induced to react with at least one solid oxidant-containing material to result in the directed growth of a reaction product which is formed from a reaction between the parent metal and the solid oxidant-containing material. The inventive process can be utilized to form bodies having substantially homogeneous compositions, graded compositions, and macrocomposite bodies. In a preferred embodiment, the reaction product may be chemically modified or a different reaction product may be coated thereon. Specifically, once a first reaction product is formed on a solid oxidant-containing material, the formed body may be exposed to a vapor-phase parent metal different from the first parent metal. Alternatively, the formed body may be exposed to a vapor-phase oxidant having a different chemical composition then the solid oxidant-containing material. Still further, a non-stoichiometric reaction product deficient in the oxidant component may be made more stoichiometric by heating the self-supporting body in the absence of reaction product growth conditions at a temperature and for a time sufficient to effect diffusion of additional oxidant from the solid oxidant-containing material into the sub-stoichiometric reaction product, thereby increasing its stoichiometry.

REFERENCES:
patent: 1948382 (1934-02-01), Johnson
patent: 2512230 (1950-06-01), Greaves et al.
patent: 2597964 (1952-05-01), Winter
patent: 2910379 (1959-10-01), Gurinsky
patent: 2929741 (1960-03-01), Steinberg
patent: 2972556 (1961-02-01), Vrahiotes et al.
patent: 3019128 (1962-01-01), Smiley
patent: 3095316 (1963-06-01), Hartwig
patent: 3230110 (1966-01-01), Smith, Jr.
patent: 3348967 (1967-10-01), Hucke
patent: 3586303 (1971-06-01), Lee
patent: 3778300 (1973-12-01), Wohlberg
patent: 3925577 (1975-12-01), Fatzer et al.
patent: 4196233 (1980-04-01), Bitzer et al.
patent: 4459328 (1984-07-01), Mizuhara
patent: 4472476 (1984-09-01), Veltri et al.
patent: 4686117 (1987-08-01), Arai et al.
patent: 4882306 (1989-11-01), Kennedy et al.
patent: 5112654 (1992-05-01), Claar
patent: 5277933 (1994-01-01), Claar et al.
patent: 5498442 (1996-03-01), Lennartz
Y. Isobe, Y. Yazawa, P. Son and M. Miyake, "Chemically Vapour-Deposited Mo/Re Double-Layer Coating on Graphite at Elevated Temperatures", Journal of Less-Common Metals, pp. 239-250, vol. 152, 1989, Elsevier Sequoai, The Netherlands. (month unknown).

Affiliated with

Also associated with

Rating

Method for making self supporting composite bodies does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for making self supporting composite bodies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making self supporting composite bodies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2354874