Materials Literature
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This work presents recent studies concerning the synthesis of ultrathin ferromagnetic Fe layers on Si(001) and the correlated follow-up measurement of their structural properties, interface reactivity, and magnetism.This study is undertaken as function of the amount of Fe deposited and of substrate temperature.The int…
Zinc oxide tetrapods (ZnO-Ts) were synthesized by air oxidation of zinc vapor. For stable production of the ZnO-Ts at the furnace temperatures of 900 °C, the lowest evaporator temperature was found to be 480 °C. Aerosol measurements showed that the fraction of naturally charged particles decreased with evaporator temp…
The European Commission Regulations No 692/2008 and No 715/2007 set the regulatory framework for type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5/6). One of the applicable tests is the low temperature emission test (Type VI), which is conducted at sub-ambie…
Combustion synthesis technique for synthesis of Aluminium oxide using urea as fuel and Aluminium Nitrate as an oxidizer is found to be easy & economical route & is able to produce Nano phase alumina powder. In present experiment urea is found to have outstanding potential towards solution combustion. Exothermicity is…
We demonstrate the tuning of Fano resonances in a symmetric planar metamaterial both experimentally and theoretically, on the basis of a unit cell consisting of two identical split ring resonators. The electromagnetic responses of the planar metamaterial to incident TE and TM waves are measured. By controlling the exc…
Four antibiotics from the cephalosporin class were used for the evaluation of controlled release behaviour. Plasma processed magnetic nanoparticles (C-Fe) were characterized by HR-TEM. Cephalosporins were deposed on magnetic nanoparticles by adsorbtion and the antimicrobial activity of cephalosporins and C-Fe/cephalos…
The corrosion inhibition of Aluminium by ATA in 1M HCl has been investigated by Weight Loss (WL), Temperature effect and electrochemical techniques such as Potentiodynamic polarization studies were used. Results showed that ATA has good inhibition efficiency on the corrosion of Aluminium in 1M HCl solution. Polarizati…
In this paper, we give a matrix decomposition method used to calculate unified generalized Stirling numbers in an explicit, non-recursive mode, and some of its applications. Then, we define generalized factorial matrices which may be regarded as a generalization in the form of the Vandermonde matrices, and presents so…
Single crystals of pure, hydrogen borate and potassium nitrate doped Ammonium Dihydrogen Phosphate (ADP) were grown from aqueous solutions, employing slow evaporation technique at room temperature. The grown crystals were subjected to powder X–ray diffraction studies to study their structural characteristics. FTIR spe…
A comparative study has been made on the thermal decomposition behavior of edible vegetable oils with/without antioxidant in air and inert atmospheres using dynamic thermogravimetric (TG) technique. The thermogravimetric profile indicates that the decomposition occurs in three and single steps in air and inert atmosph…
The novel electron trapping material of Sr2SnO4: Tb3+, Li+ for optical storage is synthesized by the solid state method. Stimulated by 980 nm infrared laser, the material shows intense up-conversion photostimulated luminescence. The ultraviolet light at 292 nm is an optimal writing source. The material has less shallo…
Nanometer sized nanowires offer a vehicle for the study of size-dependent phenomena. While quantum-size effects are commonly expected and easily predicted; size reduction also causes more atoms to be closer to the surface. Zinc oxide thin films were prepared by chemical dip coating using Zn(CH3COO)2 as a precursor sol…
An in-situ sulphated-combustion synthesis is reported to obtain gadolinium [Ce0.9Gd0.1O1.95] and samarium [Ce0.9Sm0.1O1.95] doped ceria electrolytes for solid oxide fuel cells (SOFCs). Nitrate precursors of cerium, gadolinium and samarium reactants were mixed homogenously with a citric acid fuel with an in-situ additi…
本文应用陈氏晶格反演嵌入原子势(CLI-EAM)分析了面心、体心和六角三种典型结构金属的空位形成与迁移机制。结果表明，对于形成的最稳定双空位结构，面心结构的金属银为最近邻组态，体心结构的金属钼和六角结构的金属钪为最近邻组态或次近邻组态。对于单空位迁移机制，三种结构的金属均为最近邻迁移。对于双空位迁移机制，面心金属银保持最近邻双空位组态；体心金属钼为最近邻和次近邻双空位组态的相互转化；六角金属钪为最近邻和次近邻双空位组态的相互转化，或者是保持其原来的组态。 The formation and migration mechanisms of the vacancy for FCC, BCC and HCP metal are stud…
The study was established to analyze the effectiveness of Reactive Black (RB5) and Basic Green (BG4) dyes adsorption onto chitosan beads and onto chitosan beads cross-linked with glutaraldehyde depending on the initial dye concentration in the solution (1, 5, 100 and 200 mg/dm3). It demonstrated that both the initial…
This paper presents the results of comparative analysis for the samples of austenitic AISI 321 (18Cr-9Ni) steel in the as-received state and the state after the equal channel angular acVddZBXeYV975DdeReV SVWCcVRBURWeVceYVcVRTeCcZccRUZReZCBCBWRdeBVfecCBd6uF��%faeC maximum damage dose 5.3 dpa at 350 n7. The results poin…
Laser shock peening (LSP) is a novel surface treatment process that generates deep compressive residual stresses and microstructural changes and thereby dramatically improves fatigue strength of critical metal aircraft engine parts.In the past, researchers have evaluated the mechanical effects of LSP experimentally th…
As a fundamental study for clarifying the reduction phenomena of sintered ore in a blast furnace, mixtures of iron oxide and quaternary calcium ferrite (Cf) were prepared and its kinetic behavior at the final stage of reduction with CO gas was studied. Reduction rate increased with increasing reduction temperature reg…
Stimuli-responsive degradation of amphiphilic block copolymer (ABP) micelles is highly desired in the development of multifunctional nanomaterials. For polymer-based drug delivery applications, the degradation enables fast and controlled release of encapsulated therapeutics from the delivery vehicles in targeted cells…
A model is discussed which describes the generation of X-rays in conventional tubes using tabulated bremsstrahlung energy spectra depending on three variables: the target atomic number, the incident electron kinetic energy, and the fraction of energy radiated. Additionally a parameter-free description of the character…