Materials Literature
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SF6 is a greenhouse gas applied in particular in electrical switchgear for the transmission and distribution of energy. It is indispensable for this purpose because of its superior electrical properties at high voltage. The consequent handling of SF6 and the continuous effort to reduce leakage from electrical switchge…
The paper concerns thermal properties of epoxy resin doped with carbon nanotubes (CNTs) used as a matrix for Carbon Fiber Reinforced Polymer (CFRP) composites. The aim of this work was to determine the influence of styrene addition on thermal properties of epoxy resin/CNT nanocomposites. CNTs, supplied by Nanocyl, wer…
The vaporization behavior and decomposition mechanism of NaUO3 were studied using Knudsen effusion mass spectrometry. The temperature dependence of the sodium partial pressure over the ternary phase field NaUO3–Na2U2O7–UO2 was measured for the first time: log(PNa/Pa)=10.98(±0.04)-14,999(±50)/(T/K). The enthalpy of for…
Acid pre-treatment of rice husk activated amide groups, thereby rendering the material to earlier decomposition as compared to raw rice husk when subjected to thermal analysis under non-isothermal conditions. The role of heating rate on thermal characteristics of acid-treated rice husk and energy of activation of ther…
While the manufacture of compacted graphite (CG) iron castings has seen significant expansion over the recent years, the growth of CG during iron solidification is still not fully understood. In this work, effort was expanded to experimentally reveal the evolution of graphite shape during early solidification and its…
Abstract Magnesium oxysulfate whisker (MOSW) was produced using magnesite and sulfuric acid as raw materials by hydrothermal method and further modified by taking zinc stearate as modifier via wet chemical method. The influences of the amount of modifier, slurry concentration, modification duration, modification tempe…
Oxidation of polyolefins by ultraviolet/visible irradiation is a significant limitation for their use in several technological applications. The use of high-tech additives such as silicon microparticles becomes a compositing strategy that can improve the performance of these materials at long-term service conditions.…
The effects of soy-based oil on the constitutive behavior of EPDM rubber have been investigated. Soy polyols with various hydroxyl numbers as well as unmodified soybean oil have each been incorporated in the EPDM rubber as a partial replacement for petroleum oil. Tensile tests have been performed at low and high rates…
In this study, the thermoluminescence (TL) characteristics of undoped and various Ce(3) (+)-doped Zn(BO2)2 powder samples excited by beta irradiation are reported for the first time. Zn(BO2)2:Ce(3+) powder samples were prepared by the nitric acid method (NAM) using the starting oxides [zinc oxide (ZnO), boric acid (H3B…
In this study, europium doped yttrium gadolinium (Y1.4Gd0.5Eu0.1O3) mixed oxide phosphors were synthesized by a sonochemical method at different growth temperatures (50°C, 100°C, 150°C and 200°C) for pure red light emission applications. The compositional identification, presence of dopants and the distribution of dop…
Super 304H austenitic stainless steel with 3% of copper posses excellent creep strength and corrosion resistance, which is mainly used in heat exchanger tubing of the boiler. Heat exchangers are used in nuclear power plants and marine vehicles which are intended to operate in chloride rich offshore environment. Chlori…
The aim of this work was to prepare and characterize the novel antibacterial nanocomposites based on chitosan, grafted acrylic acid and silver nanoparticles (AgNPs). Chitosan has been functionalised by chemical reaction with acrylic acid, and then mixed with silver nanoparticles (AgNPs). AgNPs have been obtained forme…
In this work, the flame‐retardant high‐density polyethylene/ethylene vinyl‐acetate copolymer (HDPE/EVA) composites have been prepared by using expandable graphite (EG) as a flame retardant combined with ammonium polyphosphate (APP) and red phosphorus masterbatch (RPM) as synergists. The synergistic effects of these ad…
The green synthesis of cadmium sulfide (CdS) nanoparticles has been regarded as the most promising technique for their prospective applications in biological system. The bacterial strain Bacillus licheniformis has shown to be efficient in synthesizing cadmium sulfide nanoparticles. We report the effect on nanocrystal…
The mechanical properties of ZK60 alloy were characterized as function of texture and grain size. An experimental methodology was designed by exploiting ECAP and annealing treatments on an extruded alloy, through which the individual effects of the mentioned parameters could be investigated. Microstructural observatio…
BiFeO3 is investigated intensively, mainly as a multiferroic material. In this paper, the state-of-the-art ab initio hybrid functional approach with atomic basis sets was employed for a study of the stability range of BiFeO3 with respect to its decomposition into binary oxides and elementary metals, as a function of t…
The present work investigates the degradation of 4-chloro 2-aminophenol (4C2AP), a highly toxic organic compound, using ultrasonic reactors and combination of ultrasound with photolysis and ozonation for the first time. Two types of ultrasonic reactors viz. ultrasonic horn and ultrasonic bath operating at frequency of…
High-performance solar-blind UV (ultraviolet) photodetectors (PDs) based on low-dimension semiconducting nanostructures with high sensitivity, excellent cycle stability, and the ability to operate in harsh environments are critical for solar observations, space communication, UV astronomy, and missile tracking. In thi…
A detailed investigation of electron emission from a set of chemical vapour deposited (CVD) diamond films is reported using high-resolution PeakForce-controlled tunnelling atomic force microscopy (PF-TUNA). Electron field emission originates preferentially from the grain boundaries in low-conductivity polycrystalline…
Nanofibres from mucoadhesive polymers could combine their material properties with unique structural characteristics for superior drug delivery performance. However, due to their chain structure a significant proportion of mucoadhesive polymers such as polysaccharides cannot be easily spun into fibres. In this study,…