Materials Literature
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LiTaO3 single crystals were implanted by 100keV H-ion or He-ion. The results indicate that H-ion implantation creates a lower damage level than the He-ion implantation does, but the yield of oxygen vacancy produced by H-ion implantation is far higher than by He-ion implantation.
Firstly, this paper reminds the reader of some basic facts about the glassy state, then of the various ways to produce amorphous metals with particular emphasis on the route of vitrification from the melt. Vitrification of an undercooled melt is the most important route from the viewpoint of the application of metalli…
Nano-structuring of CaF2 surfaces by slow highly charged ions: simulation and experiment, G Wachter, K Tökési, G Betz, C Lemell, J Burgdörfer, A S El-Said, R A Wilhelm, R Heller, S Facsko, R Ritter, F Aumayr
Longitudinal-field muon-spin-relaxation (LF- μ SR) measurements in TlCu 1- x Mg x Cl 3 were carried out to investigate the spin dynamics in the non-magnetic impurity doped spin gap system. As reported before, in the case of x ≥ 0.006, LF- μ SR time spectra are well fitted by the two components function, which means th…
염기 처리에 의한 간단한 방법으로 합성된 $MnO_2$ (B- $MnO_2$ )는 불균일 촉매시스템으로 호기성 조건에서 효과적인 아민 산화반응을 보여주었다. 이 B- $MnO_2$ 촉매는 다양한 종류의 방향족, 이원자 화합물, 비활성 지방족 등의 아민의 전환에 높은 활성과 선택성을 보여주었다. 이러한 산화반응은 온화한 온도( $50^{\circ}C$ )와 대기압의 공기 조건하에서 아민을 중간체인 이민으로 전환하고 자가 축합(self-condensation) 또는 산화적 탈수소화(oxidative dehydrogenation)을 통해 다이이민(diimine) 또는 나…
Transmission of H + 2 ions through tapered capillaries in insulating polycarbonate (PC) foil is reported. Guiding, focusing effects and multi-peaks phenomena on ions through capillaries have been studied.
In the current research, organic solar cells (OSCs) with various concentrations of pentacene in Poly(ethylenedioxythiopene):Poly(styrenesulfonate) (PEDOT:PSS) interface layer were investigated for better hole extraction. The ITO/Pentacene + PEDOT:PSS/P3HT:PCBM/Al-fabricated solar cell fabricated via brush coating prov…
The plate heat exchanger has been widely used in water heating systems due to high efficiency, simple structure, and easy maintenance. However, the studies on the effects of fouling on the heat transfer performance under various operation and maintenance conditions are very limited in the open literature. The objectiv…
The resonant Raman scattering spectra of X-ray-irradiated single-walled carbon nanotubes (SWNTs) have been measured at 532, 561, 568, 647, and 660 nm. We found that X-ray irradiation induced a marked change in the radial breathing mode (RBM). In order to analyze the X-ray-induced change in the RBM spectra, we drew a m…
The electronic structure of TEMPO (2,2,6,6-tetramethyl-1-piperidinyl N-oxide), its cation and anion were studied experimentally using the following electron spectroscopy techniques: electron energy-loss spec-troscopy (EELS), measurement of elastic and vibrational excitation (VE) cross sections, HeI photoelectron (PE)…
In this paper a new concept of a bidirectional air electrode for alkaline rechargeable batteries is introduced. The functionality of this concept, which bases on high surface nickel-foam, is shown by a demonstrator. In order to enable the charging-reaction, the concept integrates the catalytic properties of the nickel…
From nano-scratch tests, strong interfacial adhesion has been found for polystyrene (PS) and poly(methyl methacrylate) (PMMA) bilayer films prepared by a water floating (WF) method, while a PS layer on a PMMA film produced by a spin coating (SC) method peels off easily at the interface. Neutron reflectivity measuremen…
Polarization-dependent X-ray absorption fine structure spectroscopy at the carbon near K-edge (C K-NEXAFS) is developed for a layer-by-layer analysis, by measuring the distribution of electrons emitted by X-ray absorption as a function of emission angles. The C K-NEXAFS spectra for multilayer n -C 12 H 26 grown on a P…
Abstract We studied the influence of two different kind of annealing, conventional annealing and current annealing, on the magnetic and magneto‐transport properties of amorphous Co‐Fe rich glass‐coated microwires with the nominal composition Co69.2Fe4.1B11.8Si13.8C1.1 fabricated by Taylor‐Ulitvosky technique. At a cer…
O aumento da demanda mundial de aço e a redução da disponibilidade dos recursos naturais têm sido responsáveis pela formação de um panorama de desenvolvimento desafiador para a engenharia metalúrgica nos últimos anos, encarregando-a de equacionar o problema da obtenção de materiais em quantidade, qualidade, em ciclos…
Pahat HSS yang digunakan dalam proses pengeboran memiliki umur dan tidak dapat digunakan secara terus menerus. Banyak faktor yang mempengaruhi umur pahat diataranya keausan pahat. Untuk menentukan keausan pahat pahat bor biasanya operator mesin hanya melakukan secara visual atau meraba pada bagian ujung mata pahat. Ca…
Empty Palm bunches (TKKS) is one of the solid waste generated by industrial palm oil plantations which contain lots of fiber and is one of the natural fiber source that the availability of abundant in Indonesia, especially in the province of Lampung. TKKS fiber can be used as an alternative amplifier to composite mate…
We report an experimental and theoretical study of single-molecule inner-shell photoemission over an extended range of photon energies. The vibrational ratios v=1/v=0 from the C 1s photoelectron spectra, although mostly determined by the bond length change, are shown to be affected also by photoelectron recoil and sca…
Abstract Review: 82 refs.
determination. Findings: The maximum dye adsorption occurred during the first 30 minutes. The sorption capacity for adsorption of the dye was found to be 2.76 mg/gr. The dye removal efficiency was increased from 87% to 97.2% by decreasing the initial concentration of dye from 100 to 25 mg/l. By increasing the adsorben…