Materials Literature
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Four kinds of imidazoline inhibitors with different hydrophilic group, i.e. carboxymertyl imidazoline (CMI-11), hydroxyethyl imidazoline (HEI-11), aminoethyl imidazoline (AEI-11) and imidazoline (IM-11) had been synthesised and characterised by infrared and ultraviolet spectra. The inhibition performance of these imid…
The infrared-to-visible upconversion (UC) in Tm3+-doped TeO2–PbO glass was investigated by exciting the samples with a Q-switched neodymium doped yttrium aluminum garnet laser operating at 1064nm. UC emission bands at ∼454, ∼482, and ∼518nm corresponding, respectively, to the transitions D21→F43, G41→H63, and D21→H53…
Two novel isotypic polyborate cluster compounds Na 5[MB 24O 34(OH) 12]. nH 2O (M = Cr (3+), Al (3+)) have been synthesized in a boric acid flux closed system at 220 degrees C by using gel as precursors. The structure of the Cr compound was determined by low-temperature single-crystal X-ray diffraction, and the Al comp…
The synthesis of ZnO:Eu3+ nanoflowers by a low-temperature hydrothermal route is described. Characterization of the materials was performed by ESEM, XRD and FTIR spectra. The 355 nm excited photoluminescence spectra at 10 K do not indicate the presence of Eu2+ or the ZnO defect states which give rise to green or red b…
Porous titanium coatings on dense Ti6Al4V substrates were made by electrophoretic deposition (EPD) of titanium particle stabilized Pickering emulsions. The samples were consecutively dried and microwave sintered in helium to prevent oxidation. The obtained coatings have a thickness ranging from 50 to 250 μm with open…
In this study, the growth, stochiometry and electrical characteristics of MgO thin films, deposited by electron beam evaporation on Si(100) surfaces, have been investigated. Films of different thicknesses were deposited on HF last and chemical oxide Si(100) surfaces in order to determine the effect of factors such as…
Tailored CuFe2O4/MgFe2O4 and MgFe2O4/CuFe2O4 core/shell nanoparticles were prepared by a precipitation method and their structures investigated by X-ray diffraction and electron microscopy. Vibrating sample magnetometry tests showed that coating CuFe2O4 with MgFe2O4 increased coercivity from 28·87 to 40·46 Oe and decr…
Poor aqueous solubility and adverse effects in cancer treatment using cytotoxicity or hormone therapy are frequently encountered during formulation and usage of conventional drugs. This paper reviews application of various solubilizers and carriers (polymers, cyclodextrins, dendrimers and proteins and amino acids) bei…
We studied the effect of bias aging on the field emission properties of selectively patterned carbon nanotube field emitter arrays (CNT) grown using the resist-assisted patterning process. After electrical aging using an electric field of 6.87V∕μm for 40h, it was observed that the electron emission properties and unif…
2,2′-( p -Phenylene)bis(propanedinitrile), (NC) 2 CH·C 6 H 4 ·CH(CN) 2 (referred to as TCNQH 2 ), upon reaction with Cd(NO 3 ) 2, [(C 6 H 5 ) 3 PMe]Br, and Li(CH 3 CO 2 ) in MeOH/DMF at room temperature in air yields an air-stable product of composition (Ph 3 PMe) 2 [Cd 2 (TCNQ) 3 ] in the form of rhombohedral single…
Harvesting energy from previously unemployed ambient sources can play important role in saving energy and reducing the dependency to primary power sources (ACpower or battery) of an electronic system. High-performance integrated circuits such as microprocessor, typically suffers from high surface temperature (in the o…
Electronic packages may be subjected to a wide array of potential failure modes throughout their useful lifetimes. Package design for SiC power electronic devices must account for a number of these potential failure modes, especially those due to the high operating temperatures and power levels at which the semiconduc…
High intensity pulsed ultrasound, interacting with microbubble contrast agents, is potentially useful for drug delivery, cancer treatment, and tissue ablation, among other applications. To establish the fundamental understanding on the interaction of a microbubble (in an infinite volume of water) with an ultrasound pr…
ITER-Like Wall Project has been launched at the JET tokamak in order to study a tokamak operation with beryllium components on the main chamber wall and tungsten in the divertor. To perform this first comprehensive test of both materials in a thermonuclear fusion environment, a broad program has been undertaken to dev…
We measured the change of the refractive index over a wide wavelength range in Ge- and N-doped high purity (fiber optics grade) silica glasses subjected to gamma irradiation. The radiation-induced change of the refractive index tends to be greater in the infrared part of the spectrum compare to the values measured in…
The production of a cellular structure in wood-flour/plastic composites (WPC) is overwhelmingly dominated by the gaseous emissions/ volatiles released by the wood-flour (WF), which prevents the formation of a uniform and fine-celled structure. By adopting effective processing strategies, the adverse effects of these v…
The performance and service life of the die components are limited because of different reasons such as thermal and mechanical fatigue cracking, wear, plastic deformation, etc. To minimise these damages, the dies are normally subjected to a variety of surface engineering processes. In the present study, the dimensiona…
The aim of an invisibility device is to guide light around any object put inside, being able to hide objects from sight. In this work, we propose a novel design of dielectric invisibility media based on negative refraction and optical conformal mapping that seems to create perfect invisibility. This design has some ad…
A study on nitrogen plasma functionalization of polyethyleneterephthalate (PET) is presented. The samples of PET foils were exposed to a weakly ionized, highly dissociated RF nitrogen plasma with an electron temperature of 5 eV, a density of positive ions of the order of 10 15 m -3 and a density of neutral nitrogen at…
Nanocrystals of Zn 1−x M x O ( M =Mn, Co, or Ni) were grown using proteic sol-gel process, and the crystalline phases were identified by X-ray diffraction and Rietveld refinement. The nanocrystals have hexagonal wurtzite structure, with space group P 63 mc . The insertion of Mn 2+ in the place of Zn 2+ provoked an inc…