Materials Literature
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Abstract This Minireview focuses on the very recent developments in the field of porphyrin‐based self‐assembled nanomaterials with a particular focus on the use of tetrapyrrolic macrocycles bearing amphiphilic and ionic functionalities. As one of the most studied molecular materials, the importance of porphyrin‐derive…
The Half-Heusler alloy (Ti,Zr)NiSn has been reported [1-6] as one of the thermoelectric (TE) materials with large Seebeck coefficient. Thin films sputtered by magnetron-sputtering have better properties when they are deposited on Cu, rather than Fe, Ni or Si. This interface phenomenon is explained by band-structure ca…
The growth of CVD diamond film was simulated by using revised KMC method. The simulation was conducted at CH3 radical concentration (0.01%-0.03%) and atomic hydrogen concentration (0.01%-0.5%). The results showed that: The CVD diamond film growth under revised KMC method is superior, which is in good agreement with th…
Abstract Anorganisch‐organische Hybridkieselgele fixieren organische Stressoren im Abwasser und machen sie auf diese Weise unschädlich.
In this paper we demonstrate direct excitation of propagating plasmons in silver nanowires. The plasmons are excited either directly by an infrared excitation or indirectly via up-conversion process in rare-earth doped nanocrystals placed in the vicinity of the silver nanowires. In order to map propagating plasmons in…
The chemical composition of a hard alloy and a steel, as well as the microstructure, phase composition, hardness, microhardness, and depth of a hard-alloy coating on specimens produced by casting using a foamed polystyrene consumable pattern with the working surface covered with a powdered hard alloy, are studied. Res…
Systematic research on monomolecular layer of symmetrically substituted copper (II) phthalocyanine (CuPc) derivatives bas been done. An attention is focused upon final determination of the transfer pressure in an ordered nanoassembly film of CuPc by comparing different methods about surface pressure-area (-A) isotherm…
A high-surface-area, porous Ba0.5Sr0.5Co0.8Fe0.2O3−δ perovskite was prepared by using an in situ template procedure, which exhibits activity for the oxygen evolution reaction that is 5.3 times the activity of conventional non-porous one, as demonstrated by Z. Zhu et al. on p. 200.
Tapered capillaries operating in the confined controlled arc regime have the advantage of producing focused hyper plasma jets useful for ignition of electrothermal-chemical ETC systems, at peak kinetic temperatures in the range of 14,000-21,000K (~1.2-1.8eV) and considerable jet pressures of 10-70MPa for input dischar…
Billet of square or rectangular cross section is rolled in grooves on bar mills. The degree of reduction and the shape of the grooves determine the stress state of the metal in the deformation region and the energy consumption in rolling. The tensile stress at the bar surface depends on the longitudinal and transverse…
The most probable mechanism function of non-isothermal kinetics about polyvinyl chloride thermal decomposition process was studied by the differential method (A-B-S)-integral method (C-R). The results show that the most probable mechanism function accorded with the mechanism function A1.5 when the heating rate of was…
For the characteristic that the mechanical properties of resin composite are lower than cast iron, steel fibers are used to improve its properties in this paper. A weak interfacial bonding strength between steel fibers and resin indicates that steel fibers’ property cannot perform well in the polymer. In order to impr…
In this paper, we demonstrate an easy way to fabricate the power controllable field emission lamps by computing simulation. Based on our previous research, we use SolidWorks® to build a three dimension model and using Comsol Multiphysics 4.1a to calculate the electric field distribution on a straight 304 stainless ste…
A microstrip leaky wave antenna with operating frequency 2.5GHz is designed based on composite right/left handed transmission line. The beam scanning of the antenna can be controlled by changing the bias voltage of varactor in the antenna. And the performance, S-parameters and horizontal polarization pattern, of the a…
일반적으로 표면적/부피비가 큰 전도성 다공체는 수퍼캐패시터의 전극이나 흡수제, 유연히터 등의 다양한 분야에 적용되어 왔다. 본 논문에서는 이러한 전도성 다공성 구조의 역학적·전기적 특성을 이용하여 고감도 압력센서를 구현하였다. 탄소나노튜브 용액에 스펀지를 적셔 다공체에 전도성을 부여하였으며, 압력에 따른 전도성 다공체의 저항 변화를 측정하였다. 전도성 스펀지에 압력이 가해졌을 때, 각각의 탄소나노튜브들은 서로 맞붙게 되어 저항이 최대 20%까지 줄어듦을 확인하였다. 부드럽고 탄성력이 뛰어난 탄소나노튜브 스폰지는 반복적인 압축실험에도 모양의 변형 없이 매우 빠르게 안…
Multi-elements doped LaCoO3-based mixed conductors La0.7Sr0.1Ca0.1Co0.8Fe0.2O2.9 (LSCCF-112) and La0.7Sr0.2Ca0.1Co0.7Fe0.3O2.85 (LSCCF-213) were synthesized by conventional solid state reaction (CSSR). The forming process, microstructure and crystal structure of the prepared samples were analyzed by TG/DTA, SEM and XR…
The morphologies of ZnO nanostructured were synthesized by carbon assisted. The materials source will be prepared by mixing Zn, ZnO and coconut shell charcoal or graphite. The materials source and silicon substrates were put in quartz tube of furnace, heated in difference gases. When, the temperature was cooled down t…
As one of shape memory alloy with good property, NiTi is widely used in medical field. How to restrain the release of Ni from NiTi is the key problem for the use of NiTi. In this paper, the MAO under constant current of NiTi in Na2SiO3 electrolyte was studied. The process of MAO treatment of NiTi can be divided into t…
This paper represents a method for evaluating the reference current for the Distribution Static Compensator (DSTATCOM) using power balance control technique under static and dynamic conditions has been discussed. In this paper, three phase three wire VSC (Voltage Source Converter) based DSTATCOM is used for power fact…
In this paper, we describe the plasmonic and plasmon-photon coupling properties of nanostructured metallic films obtained by a self-assembly protocol. A gold layer is deposited on top of a self-assembled deposition of silica beads (artificial opal), which thus acts as a template. Atomic-force and scanning-electron mic…