Copper based composites reinforced with WC and Ti particles were prepared using planetary ball-mill. The experiment was designed by using Taguchi technique and milling was carried out in an air for several hours. The powder was characterized before and after milling using the SEM, TEM and X-ray for microstructure and for possible new phases. Microstructures show that milled particles size and r...

B. Gajdzik, The Silesian University of Technology, Faculty of Materials Science and Metallurgy, Katowice, Poland J. Sitko, The Silesian University of Technology, Faculty of Organization and Management, Zabrze, Poland The article presents the subject matter of steel mill product analysis using quality tools. The subject of quality control were bolts and a ball bushing. The Pareto chart and fault...

This study investigated the effect of grinding media on fine-grinding performance in wet tumbling mill. Comparative experiments between cylpebs and ceramic balls were conducted a laboratory ball mill under various conditions, such as different total masses, surface areas, numbers. The results indicated that produce slightly smaller instantaneous breakage rate than due to their small bulk densit...

Discrete Element Method (DEM) is a powerful tool for simulating different types of mills. It also used computing particles such as rocks, grains, and molecules. DEM has been widely in the field rock mechanics. In present work, DEM approach applied to model milling media (powder balls) inside planetary ball mill estimate distribution dry powder during milling. fact, efficiency DEM strongly depen...

This paper contains data and supporting information of and complementary to the research article entitled "Effect of jar shape on high-energy planetary ball milling efficiency: simulations and experiments" (Broseghini et al.,) [1]. Calcium fluoride (CaF2) was ground using two jars of different shape (cylindrical and half-moon) installed on a planetary ball-mill, exploring different operating co...

A solvent-free synthesis of hierarchical porous carbons is conducted by a facile and fast mechanochemical reaction in a ball mill. By means of a mechanochemical ball-milling approach, we obtained titanium(IV) citrate-based polymers, which have been processed via high temperature chlorine treatment to hierarchical porous carbons with a high specific surface area of up to 1814 m2 g-1 and well-def...

The ball-mill-based mechanochemical activation of metallic copper powder facilitates solvent-free alkyne-azide click reactions (CuAAC). All parameters that affect reaction rate (i.e., milling time, revolutions/min, size and milling ball number) have been optimized. This new, efficient, facile and eco-friendly procedure has been tested on a number of different substrates and in all cases afforde...

To investigate the mechanical energy applying to particles in a grinding process using planetary ball mill, impact of was estimated by simulating behavior and balls discrete element method (DEM) under different conditions size number particles, corresponding their variations during milling. As contributing particle breakage, we focused on generated at particle-to-grinding ball/wall particle-to-...

In this paper, the production of Al2O3-Mo nano-composites via mechanical milling was investigated. Molybdenum and alumina powders with certain ratios were grounded in a planetary ball mill at different times. XRD technique was used to determine the crystallite size of the milled powders. The microstructure of milled powders was studied using optical and electron microscopes. The crystallite siz...

Mechanochemistry has great potential in the syntheses of low-valent Mg(I) complexes. Magnesium iodide precursors with three different β-diketiminate (BDI) ligands varying bulk have been reduced K/KI (or Na/NaCl) using ball-mill. Depending on steric ligand, raw products are intensely colored powders, indicating presence (BDI)Mg⋅ radicals. Extraction pentane gave (BDI)Mg−Mg(BDI) excellent yields....