Ball temperatures during mechanical alloying in planetary mills

Ball temperatures during mechanical alloying in planetary mills

A simple calorimetric technique was used to estimate the temperature of balls during mechanical alloying (MA) in an AGO-2 planetary ball mill. Temperatures up to 600°C were realized for balls in the case that compact layers of milled powder are formed on the surface of the balls and the wall of the...

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Veröffentlicht in:Journal of alloys and compounds 2002-11, Vol.346 (1-2), p.276-281
Hauptverfasser: Kwon, Young-Soon, Gerasimov, Konstantin B, Yoon, Sok-Keel
Format: Artikel
Sprache:eng
Schlagworte:
Calorimetry
Mechanical alloying
Transition metal alloys
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Zusammenfassung:A simple calorimetric technique was used to estimate the temperature of balls during mechanical alloying (MA) in an AGO-2 planetary ball mill. Temperatures up to 600°C were realized for balls in the case that compact layers of milled powder are formed on the surface of the balls and the wall of the vial. Though free powders in the vial would decrease the temperature of the balls, it was found that a difference in temperature between the balls and the vial still exists. This should be taken into account in the analysis of temperature effects during MA. An influence of the temperature of the balls on the MA process of Mg67Ni33 and Ni50Al50 powder blends was demonstrated.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(02)00512-1