Materials Literature
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The design process for transparent conductive aluminum zinc oxide film AZO is presented in this document. The optimized RF conductivity and light transmittance properties of such film make it an attractive candidate for transparent antennas that are proposed for integration with solar cells.
The main purpose of this paper is to describe a novel power management control strategy for battery and supercapacitor hybrid energy storage system with the objective that the load power demand would be distributed into the energy storage devices in a way that each device can be utilized optimally. The paper describes…
To study the influence of temperature on partial discharge (PD) statistics and endurance of inverter-fed motor insulation, experiments were carried out focusing on enameled wires tested under bipolar repetitive square wave voltages at different temperatures. The PD pattern, delay time, amplitude and life were obtaiaed…
Thermochromic absorber coatings, which switch their emissivity for thermal radiation depending on temperature, are developed to reduce the stagnation temperature of solar thermal collectors: In the operating range of the collector, the surface exhibits a low emissivity (ɛ = 10%). At higher temperatures, the emissivity…
The lightweight and 3-dimensional reticulated α-Fe2O3/PPy hybrids were successfully fabricated via a facile one-pot polyreaction. The measured complex permittivity and microwave attenuation performance suggest that the dielectric properties of PPy can be regulated by the mass ratio of added α-Fe2O3. The two dielectric…
Ordered mesoporous silica SBA-15 was prepared using hydrothermal synthesis using sodium silicate (Na 2 SiO 3 ) as the silica source and amphiphilic block copolymer Pluronic P123 as the structure directing agent. The influence of the mass Na 2 SiO 3 , ripening duration, aging time and calcination temperature on the str…
Scrolled packings of single-layer and multilayer graphene can be used for the creation of supercapacitors, nanopumps, nanofilters, and other nanodevices. The full atomistic simulation of graphene scrolls is restricted to consideration of relatively small systems in small time intervals. To overcome this difficulty, a…
Magnesium and its alloys are finding increasing use in aerospace, automobile, nuclear, electrical, and structural engineering applications because of their high strength-to-weight ratio when compared to aluminum, titanium, and steel. In this work, AZ61 wrought magnesium alloy was processed using equal channel angular…
High quality single crystal Fe3O4 thin films with (111) orientation had been prepared on amorphous SiO2 substrate by pulsed laser deposition. The magnetization properties of the films are found to be unconventional. The Verwey transition temperature derived from the magnetization jump is around 140K, which is higher t…
In this work, poly(lactic acid) (PLA)/cellulose-nanowhisker (CNW) nanocomposites were prepared by twin-screw extrusion followed by injection moulding. The CNW was dispersed in a plasticizer/compatibilizer (PL) before the melt mixing process. It was found that the PL not only improved the processability and reduced the…
This study evaluated the potential of rambutan peel (Nephelium lappaceum), an abundant, renewable and low-cost waste, as a source of lignocellulose for technological applications. FTIR analysis confirmed the achievement of lignin, hemicellulose and cellulose. It has obtained an extract with antioxidant properties by s…
We investigate the film thickness dependent metal-to-insulator transition temperature $({T}_{\mathrm{MIT}})$ of $\mathrm{NdNi}{\mathrm{O}}_{3}$ films under tensile and compressive strain states. For the films exceeding the critical thickness for strain relaxation, ${T}_{\mathrm{MIT}}$ varies gradually with the film th…
Abstract Hydrated halloysite was discovered in books, a morphology previously associated exclusively with kaolinite. From ∼1.5 to ∼1500 μm in length, the books showed significantly greater mean Fe contents (Fe 2 O 3 = 5.2 wt.%) than tubes (Fe 2 O 3 = 3.2 wt.%), and expanded rapidly with formamide. They occurred, along…
Metal Oxide Varistors (also known as ZnO varistors) are built in many types of overvoltage protection equipment, being one of the most common solution for surge arresters. They have a higher non-linear dependence between voltage and current, and a relatively high heat adsorption capacity in case of normal overvoltage…
(K,Na)NbO 3 (KNN)-based lead-free piezoceramics have been the spotlight in search for practically viable candidates to replace the hazardous but dominating lead-containing counterparts. In this work, BaTiO 3 (BT) modified KNN ceramics were fabricated by spark plasma sintering (SPS) and the influence of BT content as w…
Known to possess distinctive properties that differ greatly from their bulk form, layered two-dimensional materials have been extensively studied and incorporated into many versatile applications ranging from optoelectronics to sensors. For biomedical research, two-dimensional transition metal dichalcogenides (2D TMDs…
Random copolymers play an important role in a range of soft materials applications and biological phenomena. An individual monomer is typically a single chemical unit whose length is comparable to or less than a Kuhn length, resulting in a monomer segment that is structurally rigid at length scales of a segregated dom…
Interaction between ultraviolet (UV) light and carbon nanotube (CNT) networks plays a central role in gas adsorption, sensor sensitivity, and stability of CNT-based electronic devices. To determine the effect of UV light on sorption kinetics and resistive gas/vapor response of different CNT networks, films of semicond…
Nowadays, artificial leather is an important commodity in daily life, especially in the fields of apparels, stationery and furniture. However, due to the maturity of producing technology and market segmentation, the industry trends to be saturated. Leather product manufacturers face intense competition and increasing…
Surface discharge phenomena often occur across the insulator in power systems, damaging the electrical equipment, but the mechanism of the electron multiplication stage during surface discharge is not yet fully understood. As such, it is necessary to investigate the mechanism of discharge along a dielectric surface. I…