Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making composite or hollow article
Patent
1996-07-26
1999-12-21
Jenkins, Daniel J.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making composite or hollow article
419 7, 419 10, 266287, 219678, 219756, B22F 310
Patent
active
060045051
ABSTRACT:
The present disclosure is directed to a method of converting green particles to form finished particles. The apparatus used for sintering incorporates an elongate hollow tube, an insulative sleeve there about to define an elevated temperature zone, and a microwave generator coupled through a wave guide into a microwave cavity incorporated the tube. The particles are moved through the tube at a controlled rate to assure adequate exposure to the microwave radiation. Another form sintered a solid part in a cavity or mold.
REFERENCES:
patent: 4501717 (1985-02-01), Tsukamoto et al.
patent: 4760228 (1988-07-01), Kudo
patent: 4938673 (1990-07-01), Adrian
The Inhibition of WC Grain Growth During Sintering of nanostructured WC-Co Powder Compacts, L.E.McCandlish, P. Secgopaul and R.K. Sadangik, Nanodyne Incorporated, 19 Home News Row, New Brunswick, NJ.
Microwave Processing of Ceramic Materials, Willard H. Sutton, United Technologies Research Center, East Hartford, CT, Ceramic Bulletin, vol. 68 o. 2, 1989.
Microwave Sintering of Multiple Alumina and Composite Components, Joel D. Katz and Rodger D. Blake, Los Alamos National Laboratory, Los Alamos, New Mexico, Ceramic Bulletin , Bol. 70, NOP. 9, 1991.
Agrawal Dinesh
Cheng Jiping
Dennis Mahlon
Gigil Paul D.
Roy Rustum
Dennis Tool Corporation
Jenkins Daniel J.
The Penn State Research Foundation
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