Method of production of metal and ceramic powders by plasma atomization

A metal or an alloy thereof, or a ceramic that has a liquid phase is introduced in the form of a rod or a wire or as a liquid stream into the apex formed by a plurality of converging plasma jets. Atomization takes place and upon controlled cooling good quality spheroidal powders are obtained whose s...

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Bibliographische Detailangaben
Hauptverfasser:	ALLAIRE, FRANÇOIS, ENTEZARIAN, MAJID, TSANTRIZOS, PETER G
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POWDER METALLURGY THEIR RELEVANT APPARATUS TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A metal or an alloy thereof, or a ceramic that has a liquid phase is introduced in the form of a rod or a wire or as a liquid stream into the apex formed by a plurality of converging plasma jets. Atomization takes place and upon controlled cooling good quality spheroidal powders are obtained whose size varies generally between about 10 and 300 mu m.