Papers – Page 4 – TechConnect Briefs

Extrusion-based polymer 3D printing parts with isotropic strength and smooth surface finish: In-situ Thermal Radiation Assisted Fused Filament Fabrication

Hsu K., Han P., Arizona State University, US

In-situ Thermal Radiation (ITR) assisted extrusion-based 3D printing is a new technology capable of producing nearly isotropic mechanical properties and smooth surface finish in extrusion 3D printed polymeric parts in as-printed state. This process introduces [...]

Production and characteristics of hydrothermal SiO2 nanoparticles and applications for cement composites

Potapov V.V., Sobolev K.G., Gorev D.S., Russian Acadamey of Sciences; University of Wisconsin-Milwaukee, RU

Technology of production of new type of amorphous nano-SiO2 in the forms of sols, gels, and powders with precursor based on hydrothermal solution was developed. Amorphous nanodispersed silicon dioxide SiO2 is currently one of the [...]

The Influence of Different Concentrations of Orotic Acid on the Poly- Lactic Acid Crystallinity Development During Vibration Assisted Injection Molding

Alzahrani F.J., Gao P., Duhduh A., Coulter J.P., Lehigh University, US

This research investigated the effect of the addition of different concentrations of Orotic Acid (OA) on the crystallization kinetics of Poly-lactic Acid (PLA) in non-quiescent conditions. DSC technique was utilized to capture the crystallinity, melting [...]

Carbon nanotubes as a reinforcement material for sustainable construction composites

Makgabutlane B., Coville N., Mhlanga S., Maubane-Nkadimeng M., University of the Witwatersrand, ZA

Carbon nanotubes (CNTs) have gained considerable attention for various applications because of their distinct inherent properties. They are characterized by high surface area, aspect ratio, thermal stability, and excellent mechanical strength. There are different synthesis [...]

Air Pollution Mitigation Technology

Chaganti V., Cheruvu M., Akshara Yantra, US

Particulate Matter (PM2.5 and PM10), and Greenhouse gases contribute to major pollution and climate change. Worldwide governments are implementing changes to cutdown the pollution producing sources and greenhouse gases. Can this change take place completely [...]

Using Nanoporous Core-Samples to Mimic the Effect of Petrophysical Parameters on Natural Gas Flowrate in an Unconventional Gas Reservoir

Ogoun E., Abunumah O., Aisueni F., Gobina E., Robert Gordon University, UK

This work adopts ceramic core technology, which has gained significant attention over the last decades, to enable laboratory study of the permeation of gases continuously under mild conditions and under realistic pressure drops with very [...]

Direct Oxygen Air Capture Using Pressure-Driven Ion Transport Membranes: Membrane Support Evaluation

Antwi S., Giwa A., Gobina E., Robert Gordon University, UK

In the chemical and medical fields, oxygen-enriched air plays a vital role in their operation. Commercial production of oxygen-enriched air is achieved by cryogenic distillation and pressure swing adsorption, respectively. The function of these two [...]

Effect of pore size and Porosity on Contact angle of Ceramic membrane for Oil-in-water Emulsion Separation

Aisueni F., Gobina E., Prabhu R., Robert Gordon University, UK

The main objective of this work is to study the effect of pore size and porosity on contact angle of ceramic membrane for Oil-in-water emulsion separation. This would include using N2 adsorption/desorption to validate pore [...]

The Quantitative Effect of Flow Direction on Gas Permeation in Ceramic Membrane

Ramala M.M., Abunumah O., Gobina E., Robert Gordon University, UK

The effect of flow direction in porous ceramic membrane has been extensively studied. Understanding fluid flow through membrane has offered utility to a number of industrial processes such as gas separation, catalytic reactions, enhanced oil [...]

Novel Low-energy Super hydrophilic Alloy Coatings

Hou F., Mardon I., Yang Z., Goode C., Cirrus Materials Science Ltd., NZ

Cirrus technology offers a low-voltage, non-toxic PEO super hydrophilic coating technology for application to light alloys. The novel surface finishing technology provides thin, adherent, and durable protection for alloys at low cost with an exceptionally [...]