Particle and Aerosol Research Vol. 11, No. 1, March 2015 |
ISSN : 1738-8716 (Print) ISSN : 2287-8130 (Online) |
Particle Morphology via Change of Ground Particle for Various Experimental Conditions During a Grinding Process by Three Kinds of Media Mills
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Abstracts
Abstract
This study investigated the effects of ball mill operation condition on the morphology of raw powders in the
dry-type milling process using three types of ball mills traditional ball mill, stirred ball mill and planetary ball mill.
Furthermore, since spherical powders offer the best combination of high hardness and high density, the optimum
milling condition to produce sphere-shaped powders was studied. The applied rotation speed ranged from 200rpm (low
rotation speed) to 700rpm (high rotation speed). The used ball size ranged from 1mm to 5mm. The metal powder
morphology was studied using SEM, XRD and PSA. The aimed spherical powders could be obtained under the
optimum experimental conditions: traditional ball mill(200rpm, 1mm ball), planetary ball mill (500rpm, 1mm ball) and
also planetary ball mill (700rpm, 1 and 3 mm ball). The results show to the development of new material using
spherical type copper powder/CNT composites for air-craft and automotive applications.
Keywords£ºParticle morphology, Grinding process, Graditional ball mill, Stirred ball mill, Planetary ball mill
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