Title :
Rapid Discharge Sintering of Powder Metallurgy Components
Author :
Twomey, Barry ; Breen, Aidan ; Byrne, Greg ; Dowling, Denis P.
Author_Institution :
Sch. of Mech. & Mater. Eng., Univ. Coll. Dublin, Dublin, Ireland
Abstract :
A microwave circumferential antenna plasma system has been used to sinter pressed-powder metallurgy components. The rapid heat generated in the discharge once the plasma is fired is sufficient to sinter samples within minutes and to temperatures upward of 1300°C based on gas mixtures and applied powers. Images of the sintering process in hydrogen at various flow rates and applied powers are presented.
Keywords :
firing (materials); plasma materials processing; powder metallurgy; rapid thermal processing; sintering; applied powers; firing; gas mixtures; microwave circumferential antenna plasma system; powder metallurgy; rapid discharge sintering; Diamond-like carbon; Discharges; Electromagnetic heating; Microwave imaging; Plasma temperature; Batch production systems; plasma materials processing; rapid thermal processing;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2011.2163172
