Measurement of Adhesion Force of Powder Particles by Powder Bed Tensile Strength Method

Influence of powder/liquid ratio on the radiodensity and diametral tensile strength of glass ionomer cements

UNLABELLED Clinicians tend to make reductions in glass ionomer power/liquid (P/L) ratios since some materials are difficult to mix and flow into small cavities, grooves or pits. In general, changing the P/L ratio decreases the physical and mechanical properties of conventional glass ionomer cements (GICs) and resin modified glass ionomer cements (RMGICs), but alterations seem to depend on their...

Effects of powder recycling on stainless steel powder and built material properties in metal powder bed fusion processes

DEM Analysis of Particle Adhesion during Powder Mixing for Dry Powder Inhaler Formulation Development

Understanding the adhesive interactions between active pharmaceutical ingredient (API) particles and carrier particles in dry powder inhalers (DPIs) is critical for the development of formulations and process design. In the current study, a discrete element method (DEM), which accounts for particle adhesion, is employed to investigate the attachment processes in DPIs. A critical velocity criter...

Experimental Study of Fluidized Bed Agglomeration of Acerola Powder

The aim of this work was to study the main effects of acerola powder on fluidized bed agglomeration. A 2 fractional factoring design was used to evaluate the main operating conditions (fluidizing air temperature, fluidizing air velocity, atomizing air flow and height of nozzle in the bed). The mechanical and physicochemical product changes were determined by analysis of particle diameter, moist...

Processability of high strength Aluminium-Copper alloys AW-2022 and 2024 by Laser Beam Melting in Powder Bed

Additive Manufacturing offers geometric freedom excellently suited for topology optimized light weight designs. Ideally these should be produced from materials of high strength to weight ratio such as aluminium-copper alloys. Yet these are considered unsuitable for welding. With Laser Beam Melting of Metals in powder bed (LBM), the only class of aluminium alloys widely processed is that of alum...