Materials Literature
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A method for obtaining red emission from an organic-light emitting diode has been developed by dissolving red and yellow dyes in a common solvent and thermally evaporating the mixture in a single furnace. Dichlorido-bis(5,7-dichloroquinolin-8-olato)tin(IV) complex ( Q2SnCl2, Q = 5,7-dichloro-8-hydroxyquinoline) has be…
Iodide doping produces charge carriers in π-conjugated polymers. Solitons can be generated in the case of polyacetylene, and polarons in the case of aromatic-type conjugated polymers. We synthesized a conjugated main-chain/side-chain polymer, which consists of polyene in the main-chain and aromatic-type conjugated uni…
This study covers the synthesis of conducting polyindene (PIn) homopolymer, polyurethane/polyindene (PU/PIn), poly(ethylene terephthalate)/polyindene (PET/PIn) and poly(vinyl chloride)/polyindene (PVC/PIn) composites. Polyindene and composites were synthesised electrochemically by cationic mechanism using LiClO4 as an…
We report a photoemission spectroscopy study on IrTe2 which exhibits an interesting lattice distortion below 270 K. Ir 4f core-level photoemission spectrum is broadened in going from 300K to 40K. This result indicates the charge moderation of Ir 5d electrons. Angle-resolved photoemission spectroscopy(ARPES) result at…
A micromechanics analysis modeling method was developed to analyze the damage progression and fatigue failure of fabric reinforced composite structures, especially for the brittle ceramic matrix material composites.A repeating unit cell concept of fabric reinforced composites was used to represent the global composite…
This paper aimed at an experimental investigation of the comparative corrosion phenomenon in the reinforcing steel of repaired chloride contaminated self-compacting concrete (SCRC) and ordinary concrete (OC) patches. This research is a continuation of a previous study in which macrocell specimens were prepared with OC…
Multiwalled carbon nanotube (MWNT) reinforced epoxy resin composites were fabricated and characterised. Several process variables were investigated using design of experiments. The MWNTs (0·5 wt-%) were dispersed in Epon 862 epoxy resin under various sonication conditions. Young’s modulus, energy to failure, glass tra…
Wear is defined as “the removal of material volume through some mechanical process between two surfaces”. There are many mechanical situations that can induce wear and each one can involve many wear mechanisms. This research focuses only on the wear due to dry sliding between two surfaces. Currently there is a need to…
Tissue regeneration relies on building carefully crafted scaffold material in the micron–submicron scale and imparting specific functionality in order to best mimic the in vivo environment in terms of chemical composition, morphology, and surface functional groups. Fibrous meshes with structural features at the micron…
The radiological impact on workers associated with spent nuclear fuel dry storage operations at reactor sites is discussed. The resulting doses to workers exposed to external radiation include the dose during dry storage system loading, unloading and handling activities, the dose associated with independent spent fuel…
Antireflective (AR) coatings were prepared using a polyimide and two types of organically modified silica colloids via a solution casting method. The optically transparent polyimide was prepared from 2,2′‐Bis[4‐(3,4‐dicarboxyphenoxy)phenyl]propane dianhydride (BPADA) and 4,4′‐oxydianiline (ODA). The silica colloids we…
The preparation of glass–ceramic foams from slag and other components including glass cullet and foaming agent (SiC) is a challenge in the development of marketable and valuable materials. Box–Behnken experimental design was used to investigate the impact of operating conditions (i.e. temperature, reaction time and fo…
It is known to be difficult to predict the regioselectivity of cycloadditions to fullerenes based on the frontier orbital theory. To discuss the chemical reactivity of C 60 , vibronic coupling constants for localized stretching vibrational modes of C 60 anion which are the hypothetical reaction modes of cycloadditions…
ABSTRACT The incomplete regeneration of diesel particulate filter may cause a local build‐up of the soot on the partially regenerated areas during next filtration cycle. This may be one of reasons causing the melting of the ceramic filter during regeneration. In this paper, we investigated several situations at which…
Electroplated nickel was chemically modified using an aminosilane coupling agent (as an alternative to chromate) in order to improve its corrosion performance. Infrared spectroscopy revealed that the silane bonded to the metal satisfactorily. The corrosion behaviour of a nickel electroplated steel workpiece was invest…
A novel cadmium cyclohexaphosphate (C5H14N2)2Cd2Cl2P6O18.4H2O has been prepared and characterized by single-crystal X-ray diffraction, infrared and Raman spectroscopies, thermogravimetric analysis, and cyclic voltammetry. The structure consists of vertex linked of CdO5Cl octahedral and P6O18 rings assembled into a two…
Sandwich composite structures offer benefits over monolithic composites with increased bending stiffness and strength, and reduced structural weight. However, sandwich panels are more susceptible to damage from low energy impact events, such as tool drops, which can result in internal damage barely or even undetectabl…
The purpose of the present paper is to investigate some subordination- and superordination-preserving properties of certain nonlinear integral operators defined on the space of meromorphically p -valent functions in the punctured open unit disk. The sandwich-type theorems associated with these integral operators are e…
Poly(styrene)-b-poly(acrylic acid) copolymers (PS-b-PAA) was shown to be one promising material for achieving substantially smaller pitch patterns than PS-b-PMMA while still retaining high etch contrast and application for chemoepitaxy. Phase separation of acetone vapor annealed PS-b-PAA (Mw=16,000 g/mol with 50:50 vo…
The glass substrates containing metal Ag nanoparticles (NPs) were fabricated by electric field assisted ion diffusion process. Two luminescent substances, NaYF4:Er3+/Yb3+ and CdSe, were deposited on the substrates respectively, and their luminescent properties were studied. The results showed that compared with Ag NPs…