Materials Literature
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Composite sandwich structures are highly proven materials that provide high strength to weight ratio. However research works are still being carried out in the area of impact characteristics of sandwich composites. This paper provides a better understanding on the effect of core density and core thickness of sandwich…
The carboxyl‐functionalized polystyrene (poly(styrene‐co‐methacrylic acid), PSMAA) nanofibers with average diameters of 250 ± 20 nm was prepared by electrospinning. PSMAA nanofibrous membrane were employed for immobilization of horseradish peroxidase (HRP) enzyme on the fibrous surface by a chemical method. The parame…
Design and development of one‐dimensional nanoarchitecture titania (TiO) assemblies have gained significant scientific interest, which have become the most studied material as they exhibit promising functional properties. In the present study, anodic TiO2 films with different surface morphologies can be synthesized in…
Bioactive ceramics are known to exhibit specific biological affinities and are able to show direct integration with surrounding bone when implanted in bony defects. However, their inadequate mechanical properties, such as low fracture toughness and high Young's modulus in comparison to natural bone, limit their clinic…
In this paper, we propose a new visual inspection method that can analyze the exterior surface of rubber tires with the light stripe projection. Image sensing of the tire surface was implemented by setting the tire on the rotating table so that the normal pattern of the tire surface could be suppressed. The proposed m…
ZnSe Nanoparticles were synthesized by solvothermal method and the particle was characterized by Transmission Electron Microscopy. The polymer nanocomposite of 2% and 4% ZnSe/EVA was fabricated by direct sonicator method. The nanocomposites were characterized by UV-Vis-NIR and FT-IR spectroscopy. The thermal behaviour…
In an effort to develop a spectroscopic mercury ion sensor, the Raman spectral features of di‐(2‐picolyl)amine (DPA) on gold nanoparticles (AuNPs) were examined in the presence of various ions. The two bands at 1020 and 1060 cm−1 showed different intensities in the presence of Hg2+ , whereas the other ions, Pb2+ , Ni2…
R32 has been used as an air-conditioner refrigerant in Japan since 2012. Although its GWP is slightly higher than the limit prescribed in the EU's F-gas regulation, the high COP of R32 systems is a key driving force behind their adoption. For refrigeration oils, there are two main issues with regard to use with R32. T…
Reaction pathway analysis was carried out to investigate the activation energy barriers of Shockley partial dislocation mobility in 3C-SiC. For each partial dislocation, there are two types of dislocations according to which kind of atom, Si or C, comprises the core edge of the dislocation line. In this paper, the par…
The response of aluminium sandwich panels with three thicknesses’ core subjected to different underwater loading levels has been studied in the fluid-structure interaction (FSI) experiments. The transient response of the panels is measured using a three-dimensional (3D) Digital Image Correlation (DIC) system, along wi…
Copper doped n-type single-crystal silicon materials are prepared by a high temperature diffusion process. The electrical and thermal-sensitive characteristic of materials is investigated under different experimental conditions. The results show that the maximum resistivity of 46.2 Ω·cm is obtained when the sample is…
The morphology and elemental composition of silicon nanoparticles, produced by means of a vibratory disc mill in a top-down synthesis route has been investigated, using scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX) and transmission electron microscopy (TEM). Both SEM and TEM reveals th…
Thin films of Tin oxide co-doped with 28at%Aluminum and varied concentration of Sulphur were prepared on 1mm thick, 1 × 1 cm 2 glass substrates at 470℃ by spray pyrolysis technique. Films were produced from 2.0 M solution of hydrous tin chloride dissolved in ethanol with 38% hydrochloric acid concentration, 1.5M aqueo…
In this paper, the dynamics of pressure peaks in a single viscoelastic pipe with a leak (leaky pipe) is examined by means of laboratory and numerical experiments. Experimental tests are the necessary premise to a reliable calibration of a 1-D numerical model which allows to investigate in detail a wide range of both g…
The economical sustainability and the integrity of oil field equipment depend on the choice of the best material for the working conditions. In oil wells, many environmental corrosion phenomena take place and affect the structural integrity of metallic parts and equipment. In order to investigate material properties i…
Glass samples of the system: 5MxOy-20B2O3-75TeO2 : MxOy = WO3, Nb2O5, PbO, Nd2O3, Y2O3, Eu2O3 were prepared by melt quenching and characterized by X-ray diffraction, density, Differential Scanning Calorimetry, UV-visible and FTIR spectroscopy. XRD patterns confirmed the amorphous structure of all samples. Glass transi…
This paper presents the first steps in developing innovative cement-based batteries to power cathodic protection in reinforced concrete structures. Initial electrical outputs of 1.55V and 23mA have been found to be sufficient to polarise prescribed corrosion currents of 20mA per m2 of embedded steel. Cathodic protecti…
The time-dependent Jones—Wilkins—Lee equation of state (JWL-EOS) is applied to describe detonation state products for aluminized explosives. To obtain the time-dependent JWL-EOS parameters, cylinder tests and underwater explosion experiments are performed. According to the result of the wall radial velocity in cylinde…
Corrosion inhibition of C-steel in 2 N H3PO4 solution using thiosemicarbazide (TSC) and 4-phenyl thiosemicarbazide (PTSC) at different concentrations was investigated by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The presence of these compounds in the solution decreases t…
Research progress on corrosion of carbon steels induced by SRB is reviewed in terms of the formation mechanism of biofilm, the traditional corrosion mechanism of SRB, mechanism of biocatalysis cathodic sulfate reduction, and the corrosion of carbon steels under the deposit scale induced by SRB biomineralization. In ad…