Materials Literature
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Self-assembled monolayers (SAMs) of π-conjugated organic molecules have attracted significant interest in the field of molecular and organic electronics because of their ability to change electrode work functions combined with a considerable conductivity. Studies simultaneously addressing both their geometrical and mo…
Using the Simultaneous Multiple Surface method in 2D (SMS2D), we present a fast catadioptric objective with a wide field of view (125°×96°designed for a microbolometer detector with 640×480 pixels and 25 microns pixel pitch.
Elemental compositions in spider and silkworm silks were determined by X-ray fluorescence (XRF) spectrum to probe the silk-forming mechanisms and an elemental basis for spider silk with excellent characteristics. XRF analysis demonstrates that in the silkworm silk, the elemental content is 47.10% for C, 29.92% for O a…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Time-dependent change in charge trap of fluorinated cellular polypropylene (PP) films exposed to air is found by thermally stimulated discharge current measurements. It is clarified that the change is due to a trace of oxygen in the reactive gas mixture, which leads to the formations of peroxy RO2* radicals as well as…
Abstract An investigation was carried out to examine the influence of two step austempering on microstructural parameters and the wear behaviour of austempered ductile iron. Ductile iron was austenitised at 900°C for 30 min, and then austempered successively at two different temperatures. It was first austempered at 3…
We address the tracking control problem via state feedback for uncertain current-fed permanent magnet step motors with non-sinusoidal flux distribution: a periodic reference signal (of known period) for the rotor position is required to be tracked. We design a robust iterative learning control algorithm which, for any…
In order to take away much more heat on the BESIII beam pipe to guarantee the normal particle detection, EDM-1 (oil No.1 for electric discharge machining), with good thermal and flow properties was selected as the candidate coolant for the central beryllium pipe of the BESIII beam pipe. Its cooling character was studi…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
We performed the heat treatment of CdTe films on GaAs substrates. The effect of heat treatment on a 1.47 eV band was characterized by photoluminescence (PL) spectra. As excitation density decreases, the emission peak shift of the 1.42 eV band is estimated to be 8.5 meV. As the excitation density decreases, the decreas…
Partial Discharge (PD) signal interpretation has become an essential tool for reliable quality assessment of insulation systems in HV electric machines. Automated classification and recognition of the different types of faults occurring within the insulation system is an important open research problem in this field.…
In this work it was determined the effect of fly ash (FA) as bonding material during the fabrication of low thermal expansion porous materials. SiC, fly ash, Vitrified Bonding Material (VBM), and LiAlSiO4 powders were used as raw materials. Porous materials were sintered at 850°C and 950°C after manual milling and mec…
Abstract In the research area of molecular magnets for Prussian blue analogues interesting and unusual effects have been observed, particularly for mixed transition metal salts of the hexacyanochromate (III) anion, TA 3-xTB x[Cr(CN)6]2·yH2O. For single metal salts, T3[Cr(CN)6]2·yH2O, with T = Mn(2+), Fe(2+), Co(2+), t…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
The self-annealing effect of electroplated copper films was investigated by measuring the time dependence of the film stress for different film thicknesses between 1.5μm and 20μm. This recrystallization process results in significant microstructure change and a film-thickness-dependent stress evolution at room tempera…
A method based on the direct diagonalization of basis states in the framework of the multiconfiguration Hartree-Fock procedure has been proposed for constructing the multielectron basis. With the use of the technique of ladder operators of the orbital angular momentum and spin, this method has been generalized to the…
A new palladium(II) complex with L-aspartic acid (L-H 2 Asp) was synthesized; its crystal structure consists of cis -isomer molecules according to X-ray diffraction data. Regardless of excess L-aspartic acid present in aqueous solution, this compound exists in the form of neutral chelate complex [Pd(HAsp) 2 ]. IR, UV-…
Extended abstract of a paper presented at Microscopy and Microanalysis 2010 in Portland, Oregon, USA, August 1 – August 5, 2010.
Boron-rich nanostructures have been produced using a chemical vapour deposition method with iron particles as catalysts. Cyclic twinning nanowires and parallel twinning nanoplatelets have been identified using electron microscopy techniques such as selected area diffraction (SAD) for structural determination and elect…
The near IR and sub-microwave range optical properties of AgGaS2-doped GaSe (GaSe:AgGaS2) grown in accordance with chemical formula [2(GaSe)]1-x:(AgGaS2)x, x=0.1, in charge composition, were studied in comparison with that in 2 wt% and 10.2 wt% S-doped GaSe (GaSe:S) to reveal the potentials for phase matching and freq…