The selection of precursor chemistry plays a critical role in determining the crystallization behavior and microstructural evolution of oxide powders synthesized by the sol–gel route. In this study, the influence of nitrate- and chloride-based calciu...
The gas atomization process for metal powder production is strongly influenced by the thermodynamic and fluid-dynamic conditions of the atomizing gas. In this study, stainless steel (316L) powders produced using a close-coupled gas atomizer (CCA) wit...
Over the years, granular packing models have evolved from linear to non-linear models in order to improve their predictive capabilities. Expressed in terms of specific volumes, the paper shows that the models have been structured around three main ap...
Laser powder bed fusion (LPBF) enables fabrication of complex bimetallic structures, such as combustion chambers, that require a thermally conductive internal liner supported by a high-strength structural jacket. Inconel 625 (IN625) served as the sub...
This work investigates the development of multifunctional bioceramic composites based on hydroxyapatite reinforced with the lead-free piezoelectric phase sodium potassium niobate, Na0.5K0.5NbO3. Hydroxyapatite powder was synthesized by aqueous precip...
Tablet sticking remains a persistent manufacturing challenge in solid oral dosage forms, particularly for high-drug-load formulations, where increased API surface exposure promotes adhesion to tablet punches. Generally, glidants are used to improve p...
This study investigates the effect of carbon nanotube (CNT) addition on the densification behavior, activation energy, microstructural evolution, and mechanical performance of WC-Co cemented carbides processed by liquid-phase sintering. WC-Co and WC-...
Laser-ignited particle combustion is critical to energy, aerospace, and defense applications, yet progress in deciphering its physicochemical mechanisms is hindered by poor reproducibility of combustion data from randomly packed samples. Classical th...
Metallic powder systems containing niobium play a key role in the development of advanced materials for structural, biomedical, energy, and surface-engineering applications. The incorporation of niobium into metallic powders influences particle behav...
Rotating-drum tests are widely employed for the characterization of powder flowability through image-derived free-surface observables. However, the statistical stability of the selected observable is rarely examined, although it directly determines t...
High-wear-resistant iron-based clad layers demonstrate substantial application potential in aerospace, automotive, and industrial equipment due to their excellent mechanical properties and extended service life. Laser cladding has emerged as a pivota...
Growing attention in additive manufacturing (AM) of high-entropy alloys has intensified the demand for techniques in creating high-quality powder for AM. This study characterizes the effectiveness of a multifunctional vacuum arc melting (VAM) and ult...
The performance of grain storage silos is strongly influenced by discharge flow patterns, hopper geometry, and material properties such as moisture content and impurity levels. However, the combined effects of these factors on flow behavior, discharg...
Laser powder bed fusion (LPBF), one of the most established metal additive manufacturing technologies, depends strongly on the physical, morphological, and rheological characteristics of the powder feedstock to ensure process stability, layer uniform...
Tungsten carbides are important materials for various application fields. Their unique combination of mechanical properties makes them a good choice for applications demanding high hardness and moderate fracture toughness, such as cutting tools, oil...
In hopper-based binder jetting 3D printing, a consistent powder dispensing rate from the hopper to the powder bed is essential for reliable printing. This study investigates the effects of adding a custom-built auto-stirrer to the hopper system on th...
With the increasing demands on energy efficiency and dynamic stability of modern combustion engines (e.g., TDI systems), conventional powder metallurgy materials are reaching their limits in terms of fatigue life and surface integrity. This scientifi...
This research investigates the relationship between mineralogical composition and compressive strength in alkali-activated cement–sand mortars incorporating palm oil fuel ash (POFA) as a partial replacement of Portland cement. POFA was introduc...
With growing performance demands, sectors such as aerospace and energy are driven to rapidly develop and optimize advanced materials. High-energy ball milling is a route to produce novel high-performance materials. However, the development of these a...
The solidification process is crucial for preparing high-performance superconductors and is strongly dependent on the characteristics of the starting powder, including particle size, morphology, and phase purity. This review concisely examines the st...
Nine elements found in 24 cumin samples from China, India, Syria and Turkey were measured by laser ablation–inductively coupled plasma–time-of-flight mass spectrometry (LA-TOF-MS) for the purpose of collecting data that could be used to d...
Wet stirred-media milling (WSMM) is among the most widely used techniques for producing high-drug-loaded stable nanosuspensions, owing to its ease of scale-up, good repeatability, operational versatility and broad applicability. However, WSMM is also...
In this work, the hydrogenation behavior of a near-equiatomic Ti-V-Zr-Nb-Mo-Hf-Ta-W refractory high-entropy alloy (R-HEA) exposed to pressurized hydrogen has been thoroughly investigated. Isothermal gas-phase hydrogen absorption experiments have been...
Nanoparticle powders of a Ce1−xRuxO2 mixed oxide (3.0% w/w), were synthesized to be used as catalytic supports, on which Pt and Ir nanoparticles were deposited as the active phase. The catalytic supports were prepared through a route involving...
An in-line process analytical technology that measures drag force exerted by wet mass in a high-shear granulator on a thin cylindrical probe enabled real-time identification of distinct stages in high-shear wet granulation of acetaminophen. The techn...
Caking and powder adhesion are widespread challenges in dry powder processes. The influence of process parameters such as humidity and temperature on the adhesion behavior of dry powders has been extensively studied in numerous studies. Besides that,...
The increasing demand for sustainable construction materials has intensified research on supplementary cementitious materials capable of reducing Portland cement consumption and associated CO2 emissions. In this context, porcelain polishing residue (...
The influence of YB4 particle addition on the microstructure and the associated thermal and mechanical properties of AISI 420 stainless steel composites fabricated using the vacuum induction melting technique was investigated. Microstructural analysi...
Metal additive manufacturing relies on fine powders whose properties influence flow, spreading, and airborne release during processing, yet published data on powder characteristics, reuse effects, and emissions remain fragmented and difficult to comp...
The use of monolithic alumina is limited by its intrinsic brittleness, which is commonly addressed through second-phase reinforcement. Silicon carbide (SiC) is an attractive reinforcement due to its high-temperature stability; however, its oxidation...
Photocatalysis is a process in which a material utilizes light energy to degrade contaminants through oxidation reactions that decompose impurities upon contact with its surface. Titanium dioxide is one of the most widely used semiconductor materials...
This is a review article that covers the history of the development of the equation of motion for solid particles in fluids, starting with the early work, before the Navier–Stokes equations were developed. Particular emphasis is placed on the d...
Powder flow is a constant concern in the production of solid dosage forms. Its concise and reliable determination and improvement are challenges for the pharmaceutical industry. Lactose (Lac) and microcrystalline cellulose (MCC) are both widely used...
Ammonium paratungstate (APT) was synthesized from scheelite ore concentrates from the Brejuí Mine in Currais Novos, Rio Grande do Norte, Northeast Brazil. The process involved acid leaching to obtain tungstic acid (H2WO4), followed by its conversion...
This study assesses two Brazilian Type F fly ash samples (FA-A and FA-B), collected from the same thermoelectric complex in different years, to investigate their influence on the production of alkali-activated materials (AAMs). FA-A exhibited a sligh...
This study presents an approach to synthesizing LTA-type zeolite from spodumene residue generated during a lithium extraction process. A residue was obtained after leaching β-spodumene with 2 mol/L phosphoric acid. After solid–liquid separ...
The growing regulatory scrutiny and the emerging trends towards natural products and clean labels have led to a particular focus on food supplements’ composition, including excipients. The objective of this study is to establish a methodologica...
In recent years, sustainable recycling approaches for chicken eggshell waste have increased significantly worldwide due to environmental and circular economy benefits. This work aimed to synthesize and characterize a new calcium aluminate powder usin...
Environmental contamination is a significant challenge, and nanotechnology shows promise in restoring ecosystems impacted by human activity. Magnetic zinc oxide nanoparticles (ZnO-NPs) are notable for their antimicrobial and photocatalytic properties...
Particles travelling within and interacting with any fluid media are found in both natural phenomena and industrial processes. Through these interactions, the particles experience a drag force, heavily influenced by their morphology, and significantl...
Titanium-containing nanoparticles have emerged as materials of significant technological importance due to their multifunctional properties and excellent performance. With their expanding applications, the amount of TiO2 nanoparticles (TNPs) being re...
Mining, mineral processing, and power generation are just a few of the industries that have made extensive use of pneumatic conveying systems in recent years. The market for pneumatic conveying is anticipated to grow to a value of $30 billion by 2025...
The current study examines the feasibility of Ultrasint PP nat 01 polypropylene material in powder bed fusion through powder characterisation. The results obtained are also deemed to be pertinent when developing or validating analytical and numerical...
The spray drying of hard metal (WC-Co) powders is a critical step in the production of high-performance cutting and wear-resistant tools. Traditionally, organic solvents such as ethanol or acetone are employed in this process, despite posing substant...
The addition of hard particles such as borides to a ductile stainless steel matrix can be very efficient for improving mechanical properties. Powder metallurgy represents a suitable route for developing these material modifications, combining high re...
Electrostatic precipitators (ESPs) are widely applied to reduce particle concentrations. However, the performance of ESPs is impaired in the nanosized diameter range due to the difficulty in electrically charging these particles. The present work eva...
Thermal wick-debinding, commonly used in low-pressure injection molding, remains challenging due to complex interactions between binder transport, capillary forces, and thermal effects. This study presents a numerical simulation of binder removal kin...
Smokeless powders are a commonly used low explosive within the ammunition industry. Their ease of purchase has allowed criminals to use these products to build improvised explosive devices. Canines have become a vital tool in locating such improvised...
Particle deposition is a phenomenon that occurs in many natural and industrial systems. Nevertheless, the modelling and understanding of such processes are still quite a big challenge. This study uses a discrete phase model (DPM) to determine the dep...
The separation of particles smaller than 1 µm either by composition or by size is still a challenge. For the separation of SiO2 and SnO2, the creation of a selective separation feature and the specific adsorption of salts and surfactants were i...
