Materials Literature
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Gradient copolymers are a relatively new kind of polymer,which exhibit various properties similar to block copolymers. Due to the economical large scale synthesis allowed by one-pot preparation,gradient copolymers attract significant attentions. This review summaries the definition and structure of gradient copolymers…
The influence of helium-related defects on hydrogen retention in magnetron sputtered nano-polycrystalline tungsten films,which had been sequentially irradiated by high energy helium and hydrogen ions,was investigated by means of X-ray diffraction(XRD),scanning electron microscope(SEM),elastic recoil detection(ERD) and…
First-principles calculations have been carried out to investigate the structural stabilities, electronic structures and elastic properties of Mg17Al12, Al2 Ca and Al4 Sr phases. The optimized structural parameters are in good agreement with the experimental and other theoretical values. The calculated formation entha…
到扭曲转变的加速的水晶的一件制服在混合拍摄的氘化 polyethylene/poly (ethylene-altpropylene )(d-PE/PEP ) 被观察。并且乐队时期是起始的 d-PE 集中的功能，熄灭深度和阶段分离的退火的时间。作为建议的基思和 Padden，薄片扭动由于它的双方上的失衡的压力，它能供应令人满意的解释到在同类的系统形成的 banded 球粒。它什么时候来到 d-PE/PEP 混合系统，在同类 99% d-PE/PEP (d-PE 的重量部分) 混合电影， banded 球粒的形成由于沿着光线的方向的象 d-PE lamellae 一样的带子的一致扭动被观察。与积累的非结晶的锐气，它转进加速的边在最前到…
Ternary Zn2GeO4nanowires were prepared by VLS law and the Chemical Vapor Deposition(CVD) method on 1 cm × 1 cm silicon wafer sputtered by metal Au catalyst.Zn2GeO4structure was obtained under the condition that the mass ratio of zinc source and germanium source was 8∶ 1wt% as the X-ray diffraction(XRD) shown.The Scann…
Five kinds of amino-functionalized (polyani- line, poly(1,2-diaminobenzene), poly(1,3-diaminobenzene), poly(diphenylamine), and poly(o-toluidine)) Fe3O4/SiO2 submicron composites (SCs) were prepared. The SEM and TEM results showed that these SCs possessed a sphere-like core/shell structure with an average diameter of…
Microstructure evolution in hot ring rolling is an important factor affecting its mechanical behaviors.The microstructure evolution during hot ring rolling is studied using the simulation and experimental methods.A 3D coupled thermo-mechanical finite element(FE) model of the whole hot ring rolling process is built usi…
Scientific and technological progresses in lithium ion batteries are highly depending on advanced characterization techniques. Various physical and chemical properties are expected to obtain, including chemical composition, morphology, crystal structure, microstructure, surface structure, transport properties, mechani…
To further investigate the fusion neutron source based on a gas dynamic trap(GDT),characteristics of the GDT were,analyzed and physics analyses were made for a fusion neutron source based on the GDT concept.The prior design of a GDT-based fusion neutron source was optimized based on a refreshed understanding of GDT op…
Polyaniline(Pani) film was applied onto AZ91 magnesium alloy in aqueous solutions containing oxalic acid and aniline monomer by cyclic voltammetry(CV) technique, which then was characterized by means of IR and SEM technique. Furthermore, the corrosion performance of the coating was evaluated in 3.5% Na Cl solution thr…
High performance fibers impregnated by shear thickening fluids(STFs) have been recognized as a kind of latent stab-resistant materials. In our work, the rheological properties of various nano-silica particles in diffierent carriers were first investigated, some of which showed the typical characteristic of shear thick…
Cardiotoxicity as a result of cancer treatment is a novel and serious public health issue that has a significant impact on a cancer patient’s management and outcome.The coexistence of cancer and cardiac disease in the same patient is more common because of aging population and improvements in the efficacy of antitumor…
AC adsorbent is prepared respectively with HNO3,high pressure hydrothermal and NaOH.The experimental equipment is used to evaluate desulfurization and denitrification performance and the samples are characterized by proximate and ultimate analysis,SEM,FT- IR and BET.The results show that the removing effect of AC modi…
Pure K2Ti4O9 whiskers were prepared by KDC(Kneading-Drying-Calcination) method with TiO2 and K2CO3 as raw materials. The influences of TiO2/K2CO3 molar ratio(RT/K), calcination temperature(TC) and cooling process on phase composition and morphology of the whiskers were investigated by TG-DSC(thermo gravimetric-differe…
The Al/Pb–0.8%Ag and Al/Pb–0.75%Ag–0.03%Co(in mass fraction) anodes used in zinc electrowinning are prepared through the electrodeposition of lead methanesulfonate electrolyte onto an aluminum matrix.The results of anode polarization curves,Tafel curves,and EIS characterizations indicated that the Al/Pb–0.75%Ag–0.03%C…
以便在微观结构和房间温度上调查 N 的效果新型的高硅 martensitic 的机械性质耐热的钢，包含 N 满足的 C 和 N 满意却不同的一样的总数的三钢根据 thermo 计算计算被设计了并且准备。热力学的计算和实验显示由 N 代替 C 改变类型和体积部分显著地高 Si martensitic 钢猛抛。与增加的 N 内容一起，在在 750 以后的样品的 precipitates？？
裂缝洞应力的精确决心具有中央重要性基于裂缝闭合模型使裂缝生长分析和生活预言疲劳。这份报纸为中心裂缝和边裂缝紧张标本学习裂缝洞行为。裂缝洞压力被裂缝尖端元素影响，这被发现。由考虑裂缝尖端元素，一个修改裂缝洞压力方程为中心裂缝紧张标本被给。为在在遥远的一致紧张和部分分布式的压力下面的一个半无限的盘子中的一个边裂缝的裂缝表面排水量方程被使用重量功能方法导出。把排水量基于这些，为在在一致紧张下面的一个半无限的盘子中的一个边裂缝的一个裂缝洞压力方程被开发了。学习证明裂缝开始压力是几何学依赖者，并且重量功能方法提供一个有效、可靠的工具处理如此的几何学依赖。
Shape-memory effect(SME) is the ability of a material to change its dimension in a predefined way in response to an external stimulus. Polymers that exhibit SME are an important class of materials in medicine, especially for minimally invasive deployment of devices. However, the rate of translation of the concept to a…
Further development of the photovoltaic industry is restricted by the productivity of mono-crystalline silicon technology due to its requirements of low cost and high efficient photocells.The heat shield is not only the important part of the thermal field in Czochralski(Cz)mono-crystalline silicon furnace,but also one…
TiC–TiB2 /Cu composites were prepared by self-propagating high-temperature synthesis with pseudo hot isostatic pressing using Ti, B4 C, and Cu powders. The compressive deformation of the composites at high temperature was investigated. It is found that the maximum compressive strength decreases with the increase of te…