Materials Literature
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Flux-coupling type SFCL which is made up of a series transformer and a superconducting current limiting device has good limiting and recovery characteristics at sudden short circuit fault. Since flux-coupling type SFCL has good property to improve the transient stability of power system, accurate serving of transient…
Hydrogen Induced Cracking (HIC) is one of failure types of in-service pressure vessels. Acoustic emission (AE) is a good method to monitor HIC. In order to investigate the characteristic of AE signals produced by HIC of carbon steel used in pressure vessel, the hydrogen charging progress of 20R steel was monitored usi…
In this paper several kinds of high impedance surfaces (HISs) such as mushroom, Jerusalem cross-shaped HIS, spiral-shaped HIS and meander line-based HIS are analyzed. The sensitivity of reflection phases with respect to incident angles for TE and TM-polarized wave are compared. A meander line-based HIS has the least s…
The use of organic materials in making polymeric insulators has many advantages. However, it also has a draw back that organic compounds degrade in outdoor environment by many factors. The major issue is that how long they will perform satisfactorily before the end of their useful life. This paper present the result o…
The magneto-mechanical damping (MMD) in Terfenol-D is investigated by measuring the resonance vibration spectra of Terfenol-D bar. It is observed that MMD in Terfenol-D strongly depends on DC magnetic field (Hdc), and the ratio of the maximum variation of MMD over Hdcto the MMD at zero bias field achieves ~255%. Takin…
Annealing-induced nanocrystallization in amorphous Fe 79.3 P 18.2 V 2.5 and Fe 76.8 P 18.2 V 5 alloys has been studied using Mössbauer spectroscopy, X-ray diffraction, and elastic modulus and internal friction measurements. The annealing temperature has been optimized for producing nanocomposites. The alloy containing…
Polyimide (PI)-carbon nanotube composites were fabricated by in situ polymerization using multi-wall carbon nanotubes (MWNT) as fillers. The composite film was characterized by some analytical instruments to ensure its structure and good dispersion of the MWNTs in the composites. The electrical resistivity of this com…
A electrochemical sensor for ß-nicotinamide adenine dinucleotide (NADH) has been developed. To fabricate a stable sensor probe, we modified the probe surface with a conjugated polymer (5,2':5',2''-terthiophene-3'-carboxylic acid, TTCA), which serves as a base substrate to construct the artificial biomembrane. The AuNP…
The light-emitting diode (LED) has been extensively applied to the lighting system. In this paper, a novel optical structure design of the focused microlens, it can achieve a specific light focusing effect through changing the structural design. We modified and redesigned the optical microlens structure from the basic…
We study the influence of the technological parameters on photoluminescence properties of Ge quantum dots in a Si matrix. We found growth and annealing conditions which provide the formation of Ge quantum dots with two energy levels.
The Department of Energy and the Idaho National Laboratory are developing a Next Generation Nuclear Plant (NGNP) to serve as a demonstration of state-of-the-art nuclear technology. The purpose of the demonstration is two fold 1) efficient low cost energy generation and 2) hydrogen production. Although a next generatio…
There has been a need to improve color temperature without using asymmetric cell structures using transparent dielectric layers with variation of Co 3 O 4 contents in plasma display panel (PDP). In this study, ZnO–B 2 O 3 –SiO 2 –Al 2 O 3 glasses with variations of the Co 3 O 4 content (0, 0.5, 1.0, 1.5, and 2.0 wt%)…
The physicochemical modeling of the behavior of impurities in the course of their preconcentration by the chemical distillation of the sample matrix consisting of granules of a solid solution of impurities in bismuth oxide was carried out. It was supposed that the distillation process is conducted in a kinetic mode. T…
Abstract Layered zirconium(IV) aminoethylphosphonate (ZrAEP) have been used as matrices for immobilization of horseradish peroxidase (HRP) to fabricate enzyme electrode for an amperometric biosensor. The biocompatible HRP–ZrAEP films were fabricated on gold electrode surface by electro‐co‐deposition method. The morpho…
In this report we have presented a spectroscopic and CW laser characterization of an efficient thulium doped GPNG bulk germanate glass pumped at 792 nm by Ti: Sapphire radiation. Laser characterization gave a maximum slope efficiency of 50 % comparable to the crystalline counterparts and we believe, to the best of our…
The effect of rapid thermal annealing on PEDOT-PSS films has been investigated by Raman spectroscopy. The analysis indicates the formation of an annealing-induced doping in the PEDOT structure, suggesting a modification of the electronic structure.
New complex chlorides [ZnCl 2 (ODA)] ( I ) (ODA=oxydianiline, C 12 H 12 N 2 O) and [ZnCl 2 (H 2 O) 2 ](Me 4 Pyz) 2 ( II ) (Me 4 Pyz = 2,3,5,6-tetramethylpyrazine) were synthesized and crystallographically characterized. Crystals of I are monoclinic, space group C 2/ c , a = 22.682(2) Å, b = 12.646(1) Å, c = 9.951(1) Å…
The purpose of this paper is to provide an update on recent developments of fluid-filled distribution transformers that combine advanced materials like amorphous core, high temperature solid insulation, and alternative fluids with improved environmental impact. An example of a transformer integrating those materials w…
Expanded graphite (EG) is synthesized by chemical intercalation of natural graphite (NG) and rapid expansion at high temperature, with titanium n-butoxide (TNB) used as titanium source by a sol-gel method to prepare EG-TiO $_2$ composite. The performances of the prepared EG-TiO $_2$ composite are characterized by BET…
For the first time, we consider the possibility of formation of AB 3 X 3 compounds in the A 2 X 3 -B 2 X (A and B are different elements; X = S, Se, Te) systems under standard conditions. For the prediction, we use an ad hoc information analysis system that combines the subsystem of databases on properties of inorgani…