Method for preparation of a functionally gradient material

Details Method for preparation of a functionally gradient material Method for preparation of a functionally gradient material

1994-07-01

1995-10-03

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 5, 419 6, 419 8, 419 10, 419 38, B22F 704

Patent

active

054550009

ABSTRACT:
The invention provides a method for in-situ powder metallurgy processing of a functionally gradient material (FGM) which uses a preceramic polymer binder system with the metal and/or ceramic powders used to produce the intermediate layers of the composite. The invention also provides a method for controlling shrinkage of the functionally gradient material during processing while still preserving the desired density of the intermediate layers by controlling the preceramic polymer binder content within the functionally gradient material.

REFERENCES:
patent: 2899338 (1959-08-01), Goetzel et al.
patent: 3149411 (1964-09-01), Smiley et al.
patent: 3547673 (1970-12-01), Bredzs et al.
patent: 4482669 (1984-11-01), Seyferth et al.
patent: 4751099 (1988-06-01), Niino et al.
patent: 4752535 (1988-06-01), Kvernes
patent: 4778649 (1988-10-01), Niino et al.
patent: 5167813 (1992-12-01), Iwata et al.
patent: 5211999 (1993-05-01), Okada
Michaeli et al., Advanced Materials, 3, 260-262, (1991).
Takemura et al., Ceramic Transactions Functionally Gradient Materials, 34, 271-278, (1993).
Yoshitake et al., ESA symp. ESA Sp303, 103-107 Jun. 1990.
Shiota et al., Adv. Compos. Mater. II Proc. Jpn, 96-104 (1990).
Koizumi, Ceramic Engineering and Science Proceeding, 16th Annual Conference on Composites and Advanced Ceramic Materials, Part 1, 333-347, (1992).
Bishop et al., Journal of Materials Science, 12, 1516-1518, (1993).
Mizrah et al., powder metallurgy international,--217-220 (1984).
Seyferth et al., J. Am. Ceram. Soc., 75, 1330-1301, (1992).
Seyferth et al., J. Am. Ceram. Soc., 67, C132-C133, (1984).
Seyferth et al., J. Am. Ceram. Soc., 66, C13-C14, (1983).
Wynne et al., Ann. Rev. Mater. Sci., 14, 297-335, (1984).
Seyferth et al., Inorganic and Organometallic Polymers, eds., M. Zeldin et al., American Chemical Society, Washington D.C., 21-41, (1988).
Yajima, Ceramic Bulletin, 62, 893-898, (1983).
Dow Corning Material Safety Data Sheet:Dow Corning X9-6348 Polycarbosilane, 1-7, (1993).
Wakashima et al., Proc. ESA Symp. (ESA SP303, Jun. 1990) 97-102, 1990.
Seyferth et al., J. Am. Ceram. Soc., 74, 2687-2689 (1991).
Semen et al., Ceram. Eng. Sci., Proc., 11, 1387-1395, (1990).
Yajima et al., Nature, 36, 237-238, (1976).

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