According to the literature, microscopic quality of powder layer produced in Selective Laser Sintering (SLS) process is related onset macroscopic defects powder. This study proposes an experimental procedure able quantify obtained spreading step SLS process. A dedicated set-up was developed, mimic and allow photographic analysis its surface. Four commercial polymeric powders for applications we...

The disposal of biomass ash (BA) will be great importance for environmental protection and sustainability, the aim this study is to analyze feasibility resourceful use in civil engineering materials. effects content type on flowability, setting time, compressive strength, flexural bonding drying shrinkage magnesium phosphate cement (MPC) mortar were investigated. In addition, BA hydration micro...

A CFD-DEM model for aerated vibratory convection was developed to explore the coupled gas-solid interactions governing bulk powder bed dynamics. Each simulation prepared by carefully characterizing rough, porous conveyor baseplate and four candidate particle sizes representative of typical beds. Trends in particles between 20 250 μm diameter could be explained considering each powder's minimum ...

UNLABELLED Objective(s) : Ibuprofen is a problematic drug in tableting due to its viscoelastic properties. Additionally its high cohesivity results in low flowability. In this study, co-precipitation of ibuprofen with varying concentration of agar and PVP to optimize properties of Ibuprofen was carried out. MATERIALS AND METHODS Co-precipitates of ibuprofen- PVP or agar were prepared by solve...

OBJECTIVES Flowable dental composites are used as restorative materials due to their excellent esthetics and rheology. However, they suffer from inferior mechanical properties compared to conventional composites. The aim of this study was to reinforce a flowable dental composite with TiO2 nanotubes (n-TiO2) and to assess the effect of n-TiO2 surface modifications on the mechanical properties of...

5 Mention of trade name, propriety produc Department of Agriculture and does not imp * Corresponding author. E-mail address: [email protected] 1537-5110/$ – see front matter Published by doi:10.1016/j.biosystemseng.2008.09.008 Much research regarding handling and storage characteristics of bulk solids has been conducted over the years. Physical properties of granular solids play a signif...