Metal matrix composite manufacture

Details Metal matrix composite manufacture Metal matrix composite manufacture

1986-03-25

1990-05-29

Godici, Nicholas P.

Metal founding

Process

Disposition of a gaseous or projected particulate molten...

164 97, B22D 2300

Patent

active

049287451

ABSTRACT:
A metal, e.g. in the form of a shaped article, is made by atomizing a stream of molten metal and directing the atomized stream at a collecting surface to form a deposit of the metal. Fine, solid particulate material of different composition from the metal, e.g., nonmetallic particles, and of mean particle size less than 20 micrometers, preferably less than 10 micrometers, is applied to the stream or spray so that it becomes incorporated into the deposit. The particulate material is applied by generating a fluidized bed thereof and feeding it from the bed into the stream or spray. Uniform dispersion of material such as SiC at a high volume percentage (e.g. greater than 15%) may be achieved.

REFERENCES:
patent: 4420031 (1983-12-01), Frykendahl
Perry, R. H. et al. Perry's Chemical Engineners' Handbook, 6th Edition, 1984, pp. 20-58.
Singer, A. R. E. et al., Metal Matrix-Composites Produced By Spray Co-Deposition, Paper 15 (1983), Powder Metallurgy Group Meeting of the Metals Society, Edinburgh, Oct. 24-26, 1983.

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