In this study, scaffolds whose main phase is an icosahedral quasicrystal (i-QC) were prepared for the first time by dynamic freeze-casting. Two different metal powders used here, namely pure aluminum and quasicrystalline particles from Al-Cu-Fe system. These powers initially mixed with deionized water, citric acid, poly(vinyl alcohol). The obtained slurry was frozen while rotating freeze-dried ...

This study describes the microstructure phase and hardness value produced in metal casting with variations mold temperature addition of Ti-B elements. gravity casting, a technique that relies solely on gravity, is used for metals. objective this to determine mechanical properties characterization specimens using die molds by varying between 250°C, 350°C, 450°C 0.05% alloying In addition, resear...

Nano-sized cellulose crystals were fabricated from microcrystalline cellulose (MCC) using combined sulfuric acid hydrolysis and high-pressure homogenization techniques. The crystals were then utilized to prepare polymethylmethacrylate (PMMA) nanocomposites by the solution casting method. The cellulose nanocrystals had diameters from about 8 to 10nm and lengths in the range of 60-120 nm. Wide-an...

Hydrogen is the next energy vector for a decarbonization society but industrial production still methane-based. The Steam Iron Process (SIP) could provide carbon-free and safety storage option. Here, we show that Fe2O3-3 wt% of Al2O3 foams created by freeze-casting withstand 10 redox cycles at different temperatures with no reduction in performance or pore shrinking. use stearic acid as dispers...

Bioglass has been used for bone-filling material in bone tissue engineering, but its lean mechanical strength limits its applications in load-bearing positions. Carbon nanotubes (CNTs), with their high aspect ratio and excellent mechanical properties, have the potential to strengthen and toughen bioactive glass material without offsetting its bioactivity. Therefore, in this research, multiwall ...

Nanoparticles at fluid interfaces are central to a rapidly increasing range of cutting-edge applications, including drug delivery, uptake through biological membranes, emulsion stabilization and the fabrication of nanocomposites. Understanding nanoscale wetting is a challenging issue, still unresolved for individual nanoparticles, and is essential in designing nanoparticle-building blocks with ...

Enabling the direct infiltration of freeze-cast graphene structures with water-based ceramic suspensions, otherwise prevented by graphene’s intrinsic hydrophobic behaviour, can lead to production hierarchical graphene/ceramic composites in a cost-effective and replicable manner. In this study, addition triblock copolymer (PF127) formulation alumina slurries was used allow integration reduced ox...

The RheoMetal process (previously called the Rapid Sand RSFprocess) is a novel method to produce cost effective, high quality, semisolid slurries for component casting. The RheoMetal process uses an Enthalpy Exchange Material (EEM) as cooling agent to absorb heat and produce a slurry. Critical process parameters to create a slurry by robust melting of the EEM are alloy content, stirring speed, ...