Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The crystal structure of dibenzothiophene has been determined by X-ray diffraction. Mo-Kα [subscript omitted] scintillation counter data were used for this analysis; the sulfur atom position was determined by means of a Patterson function; the carbon atoms were located from a Fourier synthesis, and the hydrogen atoms,…
Background: Osseointegrated amputation prostheses avoid soft tissue complications associated with traditional socket prostheses. Forces are transmitted directly to the skeleton resulting in improved function. However, approximately 50% of transcutaneous implants become infected due to the lack of a successful skin-imp…
Since silicon and aluminium are considered to be network forming cations in silicate melts, their addition should result in increased melt polymerization and therefore higher viscosity. The behaviour of quartz and sapphire dissolving in a melt was examined in the CAS system (CaO = 32.50, Al2O3 = 17.50, and SiO2 = 50.0…
Hydroxyapatite (HAp) is an important oxide in biotechnology, and also holds promise as a heterogeneous catalyst. Its ideal composition is [(CaF4)(CaT6)(PO4)6(OH)2] where an adaptable framework (F) structure creates one-dimensional tunnels (T) that provide multiple ionic acceptor sites (CAF/CAT/P/OH) which can be adjus…
The topics covered in this chapter discuss the recent developments in the area of supramolecular fullerene assemblies at nano- and macroscopic scales. The control over dimension and morphology is the key challenge in constructing functional fullerene assemblies with their materials applications in mainly organic elect…
3,4-Di-0-acetyl-D-xylal was treated in the presence of dicobalt octacarbonyl with carbon monoxide and hydrogen at elevated temperatures and pressures. From deacetylation of the reaction products, 1-∝(or β)-hydroxymethyl-2-hydro-D-xylal and l-∝(or β)-formyl-2-hydro-D-xylal were obtained; that is, a hydroxymethyl group…
The main objective of this dissertation is firstly to realize rational synthesis of oxide nanostructures with effective controls on orientation, dimension, density and predesigned position, and through further surface modification of oxide nanostructures to achieve structural and compositional complexity, or to improv…
Saxifraga ferruginea Graham complex is widely distributed in the Pacific northwest and exhibits considerable variability. Different taxonomists have recognized the variability in different ways. Their decisions were based on morphological studies of herbarium specimens and plants in the field. The main objective of th…
Charge-transfer materials have been of much interest in the research industry, due to its ability to change the clusters’ band gaps and enrich the clusters’ electrical or optical properties. Similarly, the chemistry of soluble metal chalcogenide complexes has been studied extensively, owing to their significance in bi…
Los autores agradecen al Departamento de Quimica de la Universitat Politecnica de Valencia por facilitar la muestra certificada de Cu‐Ni. Ademas este trabajo, ha sido financiado por la beca de Formacion de Profesorado Universitario (FPU) del Ministerio de Educacion y Ciencia, referencia AP2009‐2600.
采用溶胶-凝胶法以LiNO3、FeCl2·4H2O和NH4H2PO4为原料,C6H8O7·H2O为络合剂,合成LiFePO4/LiAlO2纳米介孔复合电极材料。利用XRD和SEM表征复合材料的结构。结果表明:合成产物具有单一橄榄石晶体结构,无杂相生成。采用恒流充放电研究LiFePO4/LiAlO2纳米介孔复合电极材料的电学性能。结果表明:合成的LiFePO4/LiAlO2纳米介孔复合电极材料在25℃工作温度下,具有较高的循环容量以及良好的循环稳定性和高倍率充放电性能,0.1C倍率下放电比容量可达159.1mAh/g;5C倍率下放电比容量为111.8mAh/g,循环10次后容量保持91%;随LiAlO2介孔材料含量增加,LiFePO…
ABSTRACT: The length of the Usher fibres is a effected by many factors particularly the fibre maturity, green ball size and the location in side the ball where the fibre was picked. The maturity of the fibres is determined by the colour of the seeds. Dark brown colour indicates that the fibre is fully mature and it's…
A novel air-breathing micro Direct Methanol Fuel Cell(DMFC) was designed and fabricated by taking Acrylonitrile-Butadiene-Styrene(ABS) as a basic material and the stainless steel plate as a current collector.The current collector was fabricated by using micro wire cutting and laser cutting technologies,and its surface…
Sodium tantalate (NaTaO3) is studied intensively for its high photocatalytic activity. However, NaTaO3 photocatalysts work under ultraviolet (UV) light. Since visible light accounts for more than 40% of solar energy, visible-light-driven photocatalysts have attracted more attention in recent years. \n \nDoping has bee…
Metal Organic Frameworks (MOFs) are a new class of porous materials synthesized from metal clusters connected by organic linkers. One of the promising applications of MOFs is carbon capture from fuel gasses, where CO2 is adsorbed in the pores of the material. In this presentation, we explore framework flexibility as a…
The characterization of the fracture toughness in weld and HAZ materials employed in nuclear power plant (NPP) piping is essential to assess the structural integrity of the piping systems under various loading conditions, when cracks/flaws are present in the weld/HAZ material regions. The current investigation was und…
Identification of double layered thin film elements by backscattered electron (BSE) contrast imaging by scanning electron microscope (SEM) was examined. A flat type sample was formed with an inner layer composed of five different element areas (Au, Ag, Ge, Cu and Fe) 50 nm thick and a thin gold outer layer 2, 5, or 10…
Topological insulators are insulating in the bulk, while there are topologically protected edge/surface states. These edge/surface states are different from conventional edge/surface states, and show various novel properties. We briefly outline basic properties of topological insulators, both in 2D and 3D.
Thin manganese films were grown by thermal evaporation in high vacuum. The growth rate was varied to determine how the growth rate affects the continuity of ultra-thin films. The resistance was measured with the two-point method in situ and the data was recorded digitally. The resistance was converted to resistivity a…
In this study, we have extended the concept of fiber hybrid and proposed fiber structural hybrid composite as the new concept. Fiber structural hybrid is defined as reinforcements consist from same kinds of fiber materials with different structure such as the fineness, the twisting state, and etc. In this study, the c…