Materials Literature
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The use of lignocellulosic natural fibres has gained a growing interest during the last few years, principally due to many advantages these fibres can provide in terms of cost, renewability, biodegradability, aesthetic properties, environmental impact etc. Keeping in mind the immense advantages of natural fibres, the…
Transparent, flexible, and conductive graphene sheets form an ideal substrate for the fabrication of organic light-emitting diodes. In order to obtain an optimal final device, it is vitally important to understand the underlying nucleation and growth processes. Here, the growth of para-sexiphenyl (6P) thin films on Ir…
Extended abstract of a paper presented at Microscopy and Microanalysis 2011 in Nashville, Tennessee, USA, August 7–August 11, 2011.
The phase and dissolution behavior of precipitates in biomedical ASTM F75 Co-Cr-Mo-C-Si-Mn alloys were investigated. Alloys of five different compositions, Co-28Cr-6Mo-0.25C-1Si, Co-28Cr-6Mo-0.25C-1Mn, Co-28Cr-6Mo-0.25C-1Si-1Mn, Co-28Cr-6Mo-0.15C-1Si, and Co-28Cr-6Mo-0.35C-1Si, were heat-treated from 1448 to 1548 K. T…
Three series of cholesteryl esters with different linkages and terminal groups have been synthesised and characterised. All the esters except cholesteryl 6-bromohexanoate can exhibit thermotropic liquid crystalline phases in certain temperature regions. The insertion of a 4-phenoxyl and a 4-biphenylyloxy group in the…
The authors report that the field emission of carbon nanotubes (CNTs) is significantly improved by electroplating. The electroplating leads to a decrease of the turn-on electric field from 2.95 to 1.0 V/μm and an increase of the emission-current density from 0.224 to 0.8112 mA/cm2 at an applied electric field of 8 V/μ…
Control of the structure of ultrathin films that determine the steric conditions of the passing of intermolecular interactions is one of the most promising methods of implementing the advantages of planar supramolecular systems as basic elements of nanosize information devices. This work studies the behavior of Langmu…
Surface-enhanced Raman scattering (SERS) has grown dramatically as an analytical tool for the sensitive and selective detection of molecules adsorbed on nano-roughened noble metal structures. Quantification with SERS based on signal intensity remains challenging due to the complicated fabrication process to obtain wel…
The non-linear properties provided from ZnO + A CoO 3 ceramics ( A =Ca,Sr and Ba) and their application to MLCV for ESD-suppression were studied. Their ceramics showed excellent non-linear I- V properties in lower voltage region. Especially, ZnO + SrCoO 3 ceramics intrinsically had about 20 % lower Vgb than those of P…
A series of colorless and transparent polyimide (PI) nanocomposite films was synthesized from 4,4'-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and bis(3-aminophenyl) sulfone (APS) with various organoclay contents via solution intercalation polymerization to poly(amic acid)s, followed by thermal imidization.…
This study elucidates the effects of adding Mn, the Ti/Cr ratio, and high-temperature annealing on the hydrogen absorption–desorption properties of Ti–V–Cr–Mn body-centered cubic alloys. The hydrogen storage properties of alloys are also modified by integrating the positive effects. X-ray diffraction analysis indicate…
Reaction between H 2 TFcP (TFcP 2- is a dianion of 5,10,15,20-tetraferrocenylporphyrin) with tin(II) chloride results in formation of the trans- Cl 2 SnTFcP complex, which was characterized by UV-vis, MCD, 1 H and 13 C NMR, and APCI MS methods. X-ray single crystal analysis was used to determine the structure of the t…
A multilayer back propagation learning algorithm was used as an artificial neural network tool to predict the mechanical properties of porous NiTi shape memory alloys fabricated by press/sintering of the mixed powders. Effects of green porosity, sintering time and the ratio of the average Ti to Ni particle sizes on pr…
In this study, we report some improvements in a hydrothermal method for lead-free piezoelectric powders and the performance of the sintered (K 0.48 Na 0.52 )NbO 3 ceramics. To increase the obtained powder weight per source solution volume, the hydrothermal reaction conditions were modified. This improvement is importa…
Dilatometry, magnetometry, and optical metallography were used to study structural and magnetic transformations in Ni-Mn-In alloys of different compositions. Temperatures of structural and magnetic transformations of the Ni47 − x Mn42 + x In11 alloys (with x = 0–2) were determined. It is shown that, as the valence ele…
This study was conducted for the development of the green protection garments. For this purpose, laminate composite material was developed from Kevlar 29-ramie-unsaturated polyester resin. The aim of this study was to develop a solid body armour that meets the specific requirements of ballistic resistance. This compos…
Abstract In this article, poly(vinyl chloride) (PVC)/acrylonitrile butadiene rubber (NBR)/clay nanocomposites were melt-mixed using the computerized Brabender plasticorder. During preparation of the nanocomposites self-crosslinking (crosslinking without aid of any crosslinking agent) occurs and affects all properties…
In this paper we report on the realization of magnetic field-induced martensitic phase transformation in Mn-rich Heusler alloy Mn2Ni1.36Sn0.32Co0.32. The saturation magnetization of the austenite reached 111 emu/g at 70 kOe, which decreased rapidly to 8 emu/g upon transforming to martensite. This is attributed to the…
Abstract Extrusion is one of the most applied technologies for the processing of polymer nanocomposites for applications in automotive, electrical and packaging industrial sectors. These nanostructured materials have advantages in comparison to traditional polymer materials, so that properties like tensile strength an…
To overcome the disadvantage of MgO-CaO refractories, as the poor hydration resistance, MgO coating on the MgO-CaO clinker was fabricated by carbothermal reduction MgO with carbon as reduction agent and then the oxidation of Mg vapor. Effect of processing parameters (such as carbon source, reaction temperature and hol…