Materials Literature
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Oxygen barrier performances and mechanical properties of SiOx coatings deposited on PET films by PECVD have been improved by the application of ultra-thin (10-500 nm) UV-polymerized silane compounds layers. Depending on the processing conditions, oxygen transmission rates of silane treated SiOx/ PET barrier films were…
Pegmatites are present in many metamorphic complexes. Their distinctive mineral assemblages, especially when rich in boron, provide a distinct perspective into the pressure-temperature-chemical environment. Granulite-facies metasedimentary gneisses and associated anatectic pegmatites in Larsemann Hills, Antarctica are…
Catalysts containing Au deposited on Fe 3 O 4 (commercial Cerac) and on Fe 2 O 3 were synthesized, characterized by XPS, XRD, Mossbauer spectroscopy, H 2 TPR, isopropanol decomposition - a probe reaction of acid-base properties, and tested in oxidation of CO and C 3 H 8 . Au//Fe 3 O 4 catalyst, containing a mixture of…
Although the genome is defined by its primary sequence, its functional properties, aredetermined by far more complex mechanisms and depend on multiple layers of nuclearorganization. The architecture of the nucleus includes two overlapping structures: the chromatinand a framework structure named the nuclear matrix. Ult…
Au/MgF 2 catalyst is more active in CO oxidation than Au/MgO prepared in the same conditions, in spite of lower efficiency of Au deposition on the MgF 2 surface. Its activity decreases (in contrast to Au/MgO) after the hydrogen pre-treatment. Higher activities of Au/MgF 2 as compared to Au/MgO prepared in the same con…
LiBaBO3：Ce3+ phosphor was prepared by solid-state method，and its luminescence characteristics were investigated. LiBaBO3：Ce3+ phosphor shows one asymmetrical band at 440 nm. Monitored at 440 nm，the excitation spectrum has a broad band at 370 nm. The crystallographic sites of Ce3+ in LiBaBO3 were calculated by van Uite…
A major waste of silicon (Si) occurs during photovoltaic (PV) production at the wafering stage, where up to 50% of the Si ends up in the swarf as a disposal problem. The purpose of this work is to demonstrate that the Fixed Abrasive Slicing Technique (FAST) for slicing wafers can be used to allow much of this swarf to…
La- and Ni-doped Fe3O4 nanocomposite particles with a high saturation magnetization were prepared by a homogeneous precipitation method in aqueous solutions. The obtained nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), inductively-coupled plasma atomic emission spec…
Hycrete anti-corrosion admixture was first tested by the University of Connecticut and later by the University of Massachusetts for the New England Transportation Consortium, a group of New England state departments of transportation. A variety of pozzolans and anti-corrosion admixtures were evaluated in these laborat…
This paper presents the results of investigations of polarized IR spectra of trans-β-hydromuconic acid (HMA) crystals. The spectra were measured by a transmission method using polarized light at room temperature and at 77 K for three different crystalline faces. Theoretical analysis of the results concerned linear dic…
AZO（ZnO:Al） polycrystalline thin films with strong adhesion to the substrate, as low as 89 Ω of sheet electronic resistivity and as high as 79% of visible light transmittance,are fabricated by PECVD （plasma enhanced chemical vapor deposition） method on glass and silicon substrate. The AZO film fabricated by PECVD is a…
Tube-structured ZnO needles were successfully synthesized hydrothermally, using H2O2 as the solvent, Zn (NO3)2·6H2O and NaOH as the starting materials and C19H42BrN as the additive. The samples were characterized by scanning electron microscopy, X-ray diffraction and room temperature photoluminescence measurements. Th…
发达 1Cr18Ni9Ti 包含 1.63 wt.%B 的奥氏体的不锈钢被 X 光检查衍射(XRD ) 描绘了，电子探查 microanalyzer (EPMA ) ，光显微镜学(OM ) ，扫描电子显微镜学(SEM ) ，精力散 X 光检查光谱学(版本) 和 Vickers microhardness 测量。在在 1050 的温度的答案处理以后的高硼不锈钢的微结构进化和性质也被调查。结果证明硼化物的主要作文是 Fe， Cr 和 B，并且与 Ni， Mn 和 C 的小数量元素。硅在硼化物是不可溶解的。硼化物的坚硬是超过 1,500 HV。硼化物不在答案处理期间分解，这被发现了，但是硼化物的部分溶解进矩阵。在奥氏体的矩阵增加硼元素的…
An adequate response to terrorist event of any magnitude requires the effective coordination of many organizations. A terrorist event involves the release and dispersion of radioactive material among civilian population or over vital area causes a permanent radioactive contamination, which should be removed in deconta…
Life Cycle Assessment (LCA) has been studied on the reuse of glass bottles. The system boundary in this study encompassed from gate to gate such as production and transportation. A 360 mL volume of a glass bottle was selected as the functional unit. The environmental impact assessments was studied on 6 categories incl…
This paper summarizes the results of the investigations on selected topics from the field of materials science, such as: composition and stability of the passive films on metal alloys and the effect of electrochemical and chemical modifications on the catalytic activity and selectivity ofCu-based amorphous alloys as w…
In this work a scalable non integer model of IPMC actuator is presented. The goal is to obtain a model able to predict the behavior of IPMC, with a generic shape and any boundary condition. An experimental setup has been realized to study the IPMCs behavior and an algorithm has been developed in Matlab r Environment t…
The magnetic properties of inverse-spinel LiNiVO4 have been investigated. It is found that there is a strong spin-orbit coupling effect in the system via fitting the paramagnetic data at high-temperature portion. A short-range antiferromagnetic ordering shows at low temperature with Neel temperature 35 K，which results…
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The steady-state kinetics of the selective catalytic reduction (SCR) of NOx with NH3 has been investigated over a commercial V2O5/TiO2 catalyst. In order to account for the influence of transport effects the kinetics are coupled with a fully transient two-phase 1D+1D monolith channel model. The Langmuir-Hinshelwood (L…