Method and apparatus for rapid solidification

Details Method and apparatus for rapid solidification Method and apparatus for rapid solidification

1990-02-16

1991-12-31

Theisen, Mary Lynn

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

209135, 209639, 21912137, 21912138, 21912151, 264 8, 264 10, 264 12, 264309, 425 7, B29B 910

Patent

active

050769910

ABSTRACT:
A novel process for rapid solidification of ceramic melts combines certain features of cooling by atomization and by contact with chilling surfaces. The material to be solidified is divided into fine liquid droplets that are propelled by a rapid flow of gas toward a rapidly moving chill surface, striking the surface with sufficient velocity to flatten each drop into a flat flake like shape. Apparatus for the process is also disclosed. The process is particularly applicable to making very fine grained, or even amorphous, ceramic materials that can be powdered and then sintered into strong, tough ceramic structures.

REFERENCES:
patent: 4011290 (1977-03-01), Blomqvist et al.
patent: 4104505 (1978-08-01), Rayment et al.
patent: 4326842 (1982-04-01), Adachi et al.
patent: 4386896 (1983-06-01), Ray
"Rapid Solidification of Ceramics", pub. by the Metals & Ceramics Information Center, Batelle Columbus Laboratories, Columbus, Ohio, 1984.

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