Materials Literature
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An attempt has been made in the present work to Synthesize a new bio polymer (Chitosan) based Solid silver colloid nano composite system by chemical facile method. In the present research article the silver colloid was produced by chemical reduction of silver salt (silver nitrate AgNO3) solution and sodium citrate was…
At present, silicon-carbon nanocomposites (NCs) are used in everyday life as hardwearing anticorrosive coatings, because they have a very high diffusion barrier. In addition, the electrical conductivity of a film can be changed by incorporating metal impurities into a NC structure because of its porosity; in this case…
The mechanism of biomaterial associated thrombosis has not been fully elucidated. It is believed that surface wettability of biomaterials is a key factor in influencing thrombogenicity. Parallel grating microstructure poly(dimethylsiloxane) (PDMS) surfaces were designed and fabricated using soft lithography. The surfa…
This paper proposes a model for estimating stress history during sintering of ceramic laminates. A symmetrical 3-layered laminate is assumed, and one-dimensional elastic calculation gives the stress change of each layer during heating, keeping at the sintering temperature, and cooling, respectively. How to get the str…
Antibacterial polypropylene cross-sectional shape fibers were melt spun with adding nano ZnO and modified chitosan. Two types of fiber cross-section, round and worm cross-sectional shape were studied including with nano ZnO and modified chitosan loading. Antibacterial properties, surface area, and fiber crystalization…
High purity ZnO nano particles and Indium (In) doped Zinc oxide (ZnO) nano particles were synthesized by simple sol-gel technique at low temperature of 70°C. Different compositions of Indium (In) doped zinc oxide with Zn1−xInxO (x=0.01 to 0.08 atomic percent) were prepared by low cost sol-gel technique. The powders we…
The electric field distributions in loaded dielectric layers of multilayer ceramic capacitors were investigated at several stages of insulation degradation for the load, using Kelvin probe force microscopy. The electric field distribution was found to be different at each stage of loaded time. Initially, the electric…
A charged jet can be accelerated by an electrostatic field for fabrication of continuous micro/nanofibers. A higher voltage results in smaller nanofibers. However, when the voltage surpasses a threshold value, discontinuous nanomaterials can be fabricated.
Indium oxide (In2O3) and titanium-doped indium oxide (ITiO) thin films were deposited onto glass substrates by the spray pyrolysis technique. The variations of the structural, optical and electrical properties with the titanium incorporation were investigated. The XRD profile of the films confirmed the cubic structure…
Using first-principles calculations based on density functional theory, we investigated systematically the electronic structures and magnetic properties of Ti-doped ZnO. The results indicate that Ti doped ZnO prefers the ferromagnetic ground state and shows a metallic behavior. We found that Ti-doped ZnO is a weak fer…
The effects of different microstructural features on the mechanical properties of a conventional and semi-solid gravity sand cast AM60B alloy are investigated. The Rapid Slurry Forming (RSF TM ) technology and a step casting geometry, with a range of thickness from 5 to 20 mm, have been used. Tensile specimens have be…
Objective .In the present study, biocom[patible polymer chitosan  stabilized ofloxacin- gold nanoconjugate was  synthesized for the improved anti bacterial activity against clinical isolate of E.coli and Staphylococcus aureus Methods. Chitosan stabilized oflaxacin-gold nanoparticles conjugate was prepared with aqu…
One of the problems in the case of stainless steels is their low corrosion resistance against pitting corrosion in chloride containing environments, thereby leading to severe damage to industries. In this research, the pitting corrosion of 304 austenitic stainless steel was studied in 3.5% NaCl solution at room temper…
A study has been conducted on patterned graphene with widths in the range of 0.1–4 μm which was grown by chemical vapour deposition and patterned by electron beam lithography. The microscopic behaviour of the Raman spectrum was investigated using image mapping from Raman spectroscopic data. Among three main peaks (D‐b…
A method is proposed to study the distribution of residual stresses in a semicircular notch in a hollow cylindrical specimen after advanced surface plastic deformation. The initial information used in the method is one or two experimentally determined components of the residual stress tensor in the hardened layer of t…
In the present study, Cu-Sn-Ti filler alloy with different content of Sn was used to join Ti 2 AlC ceramic and copper at 950 °C for 10 minutes. Effect of Sn content on the microstructure, mechanical property and electrical conductivity of the joints were investigated.The results indicate that the joint was comprised o…
In this paper a brief overview of research in the field of electrode materials for solar cells and supercapacitors is presented, which the authors dealt with for years. In addition to the standard electrode material (graphite and silicon in supercapacitor with solar cells), different materials were examined, particula…
Nano zinc ferrite powder was prepared by eco-friendly hydrothermal method. The prepared compound was well characterized by powder X-ray diffraction, scanning electron microscopy and UV-Vis spectophotometry. The compound formation was confirmed without any additional impurities. The PXRD data shows the crystallite size…
The results of the Mössbauer effect studies of layered NaFeAs arsenide in a wide temperature range are presented. The measurements at T > T N demonstrate that the main part (∼90%) of iron atoms are in the low-spin state Fe2+. The other atoms can be attributed to the impurity NaFe2As2 phase or to the extended defects i…
Summary A series of aromatic ureas have been synthesised and found to exhibit strong gelation or even supergelation characteristics in organic solvents to afford colourless or translucent gel materials. The synthesis of these materials, assessment of their gelation characteristics and rheological properties are report…