Materials Literature
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A series of low-density polyethylene (LDPE) blends with different amounts of poly(ethylene-vinyl acetate) (EVA) was prepared and irradiated with 10 MeV electron beam in the range of 50−380 kGy at room temperature in air. Some electrical properties of the blends such as surface and volume resistance, breakdown voltage,…
The reactions of copper (II) acetate with thiourea, with or without chitosan, are described. The products obtained are CuS and Cu2S in an approximate composition of 1:1. UV-vis, Raman and FTIR spectroscopy as well as EDX analysis confirmed these copper sulfides. The effects of chitosan on the morphology of the copper…
As the total annual production of carbon nanotubes is expected to increase, this highlights an ever-increasing need to have a tool for the detection of nanotubes. By identifying predefined criteria for the detection platform, it is evident that the current general nanoparticle sensing technologies will not meet severa…
Electrical properties of reactively sputtered SiCBN thin films were studied at high temperature conditions. In situ electrical characterization was performed through sheet resistance measurements in the temperature range from room temperature to . The electrical properties were observed to be extremely sensitive with…
The geometries, total energies, and frequencies of GenFe(n=1—8) clusters have been systematically investigated using density functional theory with the generalized gradient approximation, and the equilibrium geometries at different spin multiplicities as well as the ground-state structures have been determined. The ca…
The structural parameters of ε-FeGe have been determined at ambient conditions using single crystal refinement. Powder diffraction has been carried out to determine structural properties and compressibility for pressures up to 30 GPa and temperatures as low as 82 K. The discontinuous change in the pressure dependence…
A novel Co-Sn-O nanoring structure was synthesized via a simple hydrothermal route; the difference in diffusion rates of ions was considered to be the main reason for the formation of such a ring structure.
The paper is the review of microcellular polymer materials (polyolefins, polycarbonates and other thermoplastics) and microcellular composites reinforced with mineral fillers or natural fibers. The effects of type of foamed material, kind of foaming agent used and the foaming process conditions on mechanical propertie…
Red, green, and blue-emitting Li-doped ( , , or ) film phosphors were coated on sapphire substrates using a sol-gel technique in which yttrium nitrate, metal nitrate ( , , or ), lithium carbonate, and citric acid were used as the precursor materials. The effect of annealing temperature on thin films and thick films on…
A finishing trial was conducted to evaluate roughage source and level compared to no roughage inclusion in finishing diets containing 30% (DM basis) wet distillers grains plus solubles (WDGS). Roughage sources included alfalfa hay, corn silage, or corn stalks fed at either a low (4% alfalfa hay) or high (8% alfalfa ha…
热障碍涂层(TBC ) 成功地在煤气的汽轮机引擎被使用了增加操作温度和改善引擎效率。在免职技术 beendeveloped.Recently 有的过去的三十年，许多 TBC 材料和 TBC， nanostructured TBC 在各种各样的工业与在工业上的应用的潜力出现。在这篇论文，象空气血浆那样的 TBC 材料和 TBC 免职技术祈祷( APS )，电子横梁物理蒸汽免职( EB-PVD )，帮助化学蒸汽免职( LACVD )是的激光简短， reviewed.Nanostructured 7-8 wt %氧化钇稳定了氧化锆( 7-8YSZ )坐飞机，血浆与新奇结构喷洒粉末和新 TBC 由答案先锋血浆水花( SPPS )扔了的 T…
This paper presents a synthesis of magnetic nanoparticles of samarium cobalt alloys and the use of iron oxide as a coating layer to prevent the rapid oxidation of as-made Sm-Co nanoparticles. The colloidal nanoparticles of Sm-Co alloys were made in octyl ether using samarium acetylacetonate and dicobalt octacarbonyl a…
This work investigates the variation of local structure around Cu 2+ and Mn 3+ as a function of pressure in A 2 CuCl 4 and AMnF 4 layered perovskites by means of x-ray absorption, optical spectroscopy and x-ray diffraction. In both families pressure induces simultaneously reduction of the Jahn–Teller distortion (JTD)…
Thermal FEM (Finite Element Method) simulations can be used to predict the thermal behavior of power semiconductors in application. Most power semiconductors are made of silicon. Silicon thermal material properties are significantly temperature dependent. In this paper, validity of a common non-linear silicon material…
This work presents an analysis of the quality parameters of cotton yarns with linear densities of 15, 18, 20, 25, 30, and 40 tex manufactured with the use of ring-, compact-, and BD 200S & R1 rotor spinning machines. Slivers and rovings obtained from carded and combed middle-staple cotton were the initial half-product…
In the present work, the role and the effect of platinum and gold on the catalytic performance of ceria supported tri-metallic Pt-Pd-Au catalysts have been studied. The optimum composition of these tri-metallic supported catalysts has been discovered using methods and tools of combinatorial catalyst library design. De…
In order to improve particle properties, new processes combining granulation and crystallization are being developed. This work deals with the spherical crystallization process by the quasi-emulsion mechanism applied to carbamazepine, a pharmaceutical drug. The aim of the present study was to produce of spherical grai…
The influence of the crystal orientation in porous crystalline films of ZnO electrodeposited on the photoelectrochemical characteristics of the films is studied. For differently oriented ZnO thin films following removal of the respective structure-directing agent (SDA) and adsorption of a sensitiser, time-resolved pho…
Environmentally attractive synthetic routes are studied for the synthesis of MgAl-layered double hydroxides (LDHs) incorporating a series of organic dicarboxylate anions. The reaction conditions are systematically explored to ascertain the effect of acid chain length and layer charge (i.e. Mg/Al ratio). The materials…
Composites of high-molecular-weight polyaniline (PANI) and single-walled carbon nanotubes as well as composites of PANI and multiwalled carbon nanotubes of various weight percentages were prepared using solution processing. The integration and distribution of the carbon nanotubes (CNTs) in the PANI matrix were investi…