Materials Literature
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Thermosetting fluorinated polyurethane coating was prepared by using fluorinated polyether polyol (FPO) as the soft segment, 4,4`-diphenylmethane diisocyanate (MDI) as the hard segment, TEA as crosslinking agent. The structure ofthermosetting fluorinated polyurethane coating was confirmed by the use of Fourier transfo…
Despite substantial research efforts, the potential of polymer nanocomposites has still not been fully revealed, mainly due to poor control over the dispersion and alignment of nanoparticles (NPs). Since nanocomposite properties are controlled by the structural variables, it is crucial to achieve control over the NP a…
Abstract Als Hauptursachen für Korrosion der Bewehrung werden allgemein die beiden folgenden Vorgänge im Beton angesehen: Karbonatisierung des Betons bis zur Oberfläche der Bewehrung, bei der der pH‐Wert des Betons deutlich abfällt, so dass sich keine stabile Passivschicht mehr ausbildet oder Überschreiten eines kriti…
A homogeneous Ni (OH)2/graphene nanosheet (GNS) nanocomposite with excellent supercapacitive performance has been synthesized by a facile chemical precipitation. The Ni (OH)2/GNS nanocomposite presented an ideal morphology with the nanosized Ni (OH)2 particles homogeneously growing on the GNS. Its microstructure, morp…
A common practice in the design of three-dimensional objects with transformation optics is to first design a two-dimensional object and then to simply extend the refractive index profile along the z -axis. For lenses that are transformations of free space, this technique works perfectly, but for many lenses that seem…
Taking acetylene as the carbon source gas diluted with nitrogen gas in this paper, carbon felt was heated under the nitrogen atmosphere, the temperature of carbon felt increased using heat generated by itself, which so as to cleave the carbon source gas and densify carbon felt by pyrolytic carbon deposition. The elect…
We demonstrate the preparation of hierarchical porous structure composite particles containing sodalite cores,and outer zeolitic imidazolate framework-8 (ZIF-8) shells. The synthesis involved first synthesis of sodalite zeolites by hydrothermal reaction from alkali-activated kaolin with polyacrylamide acting as struct…
A waveguide-based antireflection structure is proposed. The device consists of two polarization rotators (PRs), two polarization-distinguished 90-deg phase delay units (PDUs), and a polarization beam combiner (PBC). The PR and PDU, providing the same function as a quarter wave plate in free-space optics, convert a lin…
The effect of temperature on the structural evolution and physical properties of nanocrystalline BiFeO3 compound has been studied systematically. The results show that the compound crystallizes in the hexagonal LiNbO3 type-structure (space group R3c) and the structural characterization was a=b=5.5979 Å, c=13.9163 Å…
Energy utilization (pyrolysis) of residue from fibre recycling of used beverage cartons is very important. Identification the optimal technology for separation of aluminium from pyrolytic carbon and assessment of its quality in relationship to the pyrolysis conditions is necessary for recycling of Al. The particles of…
Abstract C36H33ErN4O16, monoclinic, C2/c (no. 15), a = 13.828(3) Å, b = 15.892(3) Å, c = 15.634(3) Å, β = 95.687(2)°, V = 3418.7(12) Å3, Z = 4, R gt (F) = 0.0216, wR ref (F 2 ) = 0.0490, T = 296(2) K.
Water splitting using photocatalyst has become a topic of recent investigation since it has the potential of producing hydrogen for clean energy from sunlight. An extensive number of solid photocatalysts have been studied for overall water splitting in recent years. In this study, two methods were employed to synthesi…
Recently, photovoltaic devices based on colloidal semiconductor nanocrystals (NCs) have attracted a great interest due to their flexible synthesis with tunable band gaps and shape-dependent optical and electronic properties. However, the surface of NCs typically presents long chain with electrically insulating organic…
In this study, we investigated a directed self-assembly (DSA) flow that could include a non-periodic pattern (i.e., wide line) lying in between the periodic line/space patterns, in a relatively simple and inexpensive way. A symmetric poly(styrene-block-methyl methacrylate) (PS-b-PMMA) with the natural periodicity (L0)…
This research took CH4 and H2 as the air source and sufficiently utilized the diamond films generated on the Si piece due to the microwave plasma chemical vapor deposition (MPCVD) method. Raman spectrum functioned as the key method to investigate the diamond films in such research. The diamond phase, large graphite mo…
In this study, Mg-doped CdS nanostructure was deposited onto anodic aluminum oxide (AAO) membrane substrate using sol-gel spin coating method. The AAO membrane was prepared by a two-step anodization process combined with pore widening process. The morphology, chemical composition, and structure of the spin- coated CdS…
Exploring the structure-property relationships is a fundamental but significant work for the design of new molecular. Rationaly designing of electrochromic materials that can switch rapidly and durably requires sophisticated understanding of the correlations between molecular structure and the performance. This work p…
0Cr18Ni10Ti stainless steel was coated by hot-dipping in a molten aluminum bath, and then diffusing annealing at 950 °C for 2h. Aluminized steel was composed of three layers: outer layer FeAl2 phase and FeAl phase, intermediate layer FeAl phase, and inner solid solution with Al. The cyclic oxidation resistance of alum…
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Activated carbon can be produced from natural sources, such as pistachio and acorn shells, which can be an inexpensive and sustainable sources of natural wastes for the energy storage devices, such as supercapacitors. The carbonaceous materials used in this study were carbonized at the temperatures of 700°C and 900°C…