Materials Literature
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Abstract Polyaniline (PA) film was chemically deposited onto the surface of activated carbon (AC) uniformly. Chemical deposition was carried out in 0.1 mol/L aniline plus 0.5 mol/L H 2 SO 4 solution adopting V 2 O 5 · n H 2 O coated on the surface of activated carbon as oxidant. The surface morphologies and structures…
Kinetically favorable regions are determined for the production of film carbon materials of different allotropic modifications in the microwave plasma of the low-pressure ethanol vapor. Self-organization effects and polymorphic transformations caused by kinetic factors are detected. These phenomena are used to design…
Developing methods to label viruses with fluorescent moieties has its merits in elucidating viral infection mechanisms and exploring novel antiviral therapeutics. Fluorescent quantum dots (QDs), an emerging probe for biological imaging and medical diagnostics, were employed in this study to tag retrovirus encoding enh…
The CANDU®-Supercritical Water Reactor (CANDU-SCWR) is one of the six reactor concepts being considered by the Generation-IV International Forum (GIF) for international collaborative R&D. With SCW coolant, the thermodynamic efficiency is increased to over 40%. The CANDU-SCWR is moderated using heavy water, and it…
Micro- and sub-micro particles of complex [Mn12O12(O2CC6H5)16(H2O)4] (1) with controlled size and polymorphism have been prepared by dense-gas crystallization techniques, showing a remarkable particle size influence on the magnetization relaxation rates.
This paper reports on the results of calculations of the band structure, the effective masses of holes and electrons, the spectral and polarization dependences of the imaginary and real parts of the complex permittivity, the effective number of valence electrons, and the characteristic loss function for the TlInTe 2 s…
La/Mn-codoped BaTiO3 systems, obtained by solid state reactions, were investigated regarding their microstructure characteristics and ferroelectric properties. Different concentrations of La2O3 were used for doping, ranging from 0.1 to 5.0 at% La, while a content of Mn was constant at 0.05 at%. For all samples sintere…
Table 1. Compositions of Alloys (wt%).
Zirconium silicides are being investigated for use as neutron reflector materials for the next generation of nuclear power devices. Hot isostatically pressed monolithic Zr 3 Si 2 and reactive sintered Zr X Si Y composite are currently under development. The composite is obtained in situ and contains a ZrSi matrix embe…
The effects of different amounts of added Al, ranging from 1 % to 9 %, on the microstructure and properties of Mg-Al binary alloys were investigated. The results showed that when the amount of added Al is less than 5%, the grain size of the Mg-Al binary alloys decreases dramatically from 3 097 μm to 151 μm with increa…
Conference paper written by Ulrike Kuhlmann, André Dürr and Hans-Peter Günther presented at IABSE Symposium: Responding to Tomorrow's Challenges in Structural Engineering, Budapest, Hungary, 13-15 September 2006.
The electrochemical preparation of polypyrrolepolyethylene glycol (PPy-PEG) conducting polymer composite films on an indium tin oxide (ITO) glass electrode from an aqueous solution containing pyrrole monomer, p-toluene sulfonate (p-TS) dopant and polyethylene glycol (PEG) insulating polymer is reported in this paper.…
耐熱接着性と加熱解体性を兼備する構造用エポキシ樹脂接着剤の組成設計を試みた。イミド骨格を有する高極性単官能エポキシ（グリシジルフタルイミド: GPI) をビスフェノールA型エポキシ樹脂に配合することにより，他の単官能エポキシ添加系と比較して硬化樹脂の Tg 低下を抑制しつつ Tg を越えた温度域での軟化が大きくなり，ゴム平坦域弾性率を効果的に低下させうることを見出した。また，同エポキシ組成であっても硬化剤種によって熱軟化挙動は異なり，潜在性硬化触媒ジシアンジアミド／ジクロロフェニルジメチルウレアは，Tg 低下抑制効果と熱軟化効果のバランスに優れた硬化物を与えた。これらの知見を基に，80℃以上の Tg，3GPa以上のガラス領域樹脂弾…
Undoped and indium-doped ZnO films have been deposited onto glass substrates by the spray pyrolysis method. The effect of indium incorporation on structural and electrical properties of ZnO films has been investigated. Zinc acetate dihydrate, indium chloride were used as a starting material and a dopant source, respec…
This report concerns a study which has been conducted for the Swedish Nuclear Power Inspectorate (SKI). The conclusions and viewpoints presented in the report are those of the author/authors and do not necessarily coincide with those of the SKI. SKI perspective SKI has supported research for investigating cladding ind…
Reductive amination of various aldehydes with cyclen represents a very convenient method for the synthesis of a wide range of 1,7-difunctionalized cyclens, as well as new cryptands.
The electrochemical formation and characteristics of passive films on niobium surfaces in aqueous H2SO4 solutions were studied using open circuit potential and cyclic voltammetry. In the potential region between -1.0 and 1.2 V(NHE), the cyclic voltammetry data showed that the active/passive transition involves slow me…
Utilizing terahertz time domain spectroscopy, we characterized the electromagnetic response of planar split ring resonators fabricated on GaAs. Optical excitation is sufficient to turn off the electric resonance demonstrating the potential of SRR terahertz switches.
A photochromic naphthopyran derivative, 3-(2,4-dimethoxyphenyl)-3-(4-methoxyphenyl)-3H-naphtho[2,1-b]pyran, was embedded in sol–gel prepared phenyl (Ph) and pentafluorophenyl (pFPh) functionalized silica thin films. The functionalization of the matrix surface and the temperature both play important roles in the photoc…
The magnesium phosphosilicate cement (MPSC) is a novel inorganic binder, it sets quickly and has very high strength. Also, it is a promising material for the sustainable development. In the present study, the durability of MPSC were investigated, including deicer scaling resistance under freezing-thawing cycles, chemi…