DEM simulation and characterization of copper and iron powders fabricated by ball milling  

作　　者：Khulan Uranchimeg Battsetseg Jargalsaikhan Lee Sang Eui Heekyu Choi 

机构地区：[1]Graduate School of Material Science Engineering,Changwon National University,Changwon,Gyoungnam,641-773,Republic of Korea [2]Citi University,Ulaanbaatar 14201,Mongolia [3]Department of Mechatronics Convergence Engineering,College of Future Convergence,Changwon National University,Changwon,Gyoungnam,641-773,Republic of Korea [4]Graduate School of Convergence on Culture Technology,Changwon National University,Changwon,Gyoungnam,641-773,Republic of Korea [5]Research Institute of Future Convergence,Changwon National University,Changwon,Gyoungnam,641-773,Republic of Korea

出　　处：《Particuology》2024年第11期96-108,共13页颗粒学报（英文版）

基　　金：supported by Changwon National University in 2023∼2024.

摘　　要：In this study,the particle morphology,and size changes in copper and iron powders were investigated by using a high-energy ball mill under the same experimental conditions.The particle sizes and morphologies of the powders were examined using a particle size analyzer and scanning electron microscopy(SEM).We also used the discrete element method(DEM)to analyze the ball impaction and the shear energy during the ball milling process.It was discovered that the quantity of milling balls and rotational speed had a major impact on energy dissipation through heat and plastic deformation as well as milling efficiency.The characteristic(particle morphology and size)of the iron and copper powder were differently changed under the same experimental conditions,shear energy,and ball impaction.When the particle sizes of copper and iron powder were compared under the same experimental conditions,the copper particle size increased from 21.6μm to 280μm,resulting in particle agglomeration,while the iron powder particle size decreased from 154μm to 4.35μm.

关 键 词：Copper powder Iron powder Ball size Particle morphology Particle size 

分 类 号：TG14[一般工业技术—材料科学与工程]