دانلود رایگان مقاله لاتین آلومینیوم نانوکامپوزیت اکسید از سایت الزویر
عنوان فارسی مقاله:
تاثیر ساختار سلسله مراتب بر خواص الکتریکی گرادیان توزیع آلومینیوم نانوکامپوزیت اکسید / پلی اتیلن
عنوان انگلیسی مقاله:
Influence of hierarchy structure on electrical properties of gradient-distribution aluminum oxide/polyethylene nanocomposites
سال انتشار : 2016
برای دانلود رایگان مقاله آلومینیوم نانوکامپوزیت اکسید اینجا کلیک نمایید.
مقدمه انگلیسی مقاله:
1. Introduction
Dielectric nanocomposites have been widely used in the high voltage direct current (HVDC) cables [1e3]. As we know, a large amount of space charges will accumulate when a dielectric is energized, resulted from the traps existing in the dielectric materials [4]. Generally, the presence of the charge accumulation will lead to the distortion of electric field distribution, thus resulting in the enhancement of electric field in certain region of the dielectrics. Then it will lead to the degradation, even premature failure of the materials. Therefore, the suppression of charge is very important for long-term using of the dielectric materials [5e8]. Several mechanisms have been proposed to interpret the suppression of space charges in the nanocomposites. One is that the trap centers near the interface between the electrodes and the nanocomposites can capture the injected charges [9]. The captured charges can distort the electric field in the vicinity of the interface, which will decrease the charge injection, and the space charges will be suppressed [10,11]. Many researches demonstrated that the nanoparticles introduced into the dielectric materials could induce the deep trap. A certain amount of deep traps could inhibit the injecting of charges into the materials [12]. In this work, two kinds of insulation systems, namely the meandistribution monolayered and gradient-distribution multi-layered nano-Al2O3/LDPE nanocomposites were respectively fabricated. Their space charge distributions with increasing time under E- fields were tested by the pulsed electro acoustic (PEA) method. Space charge characteristics at the interface of the composites and the effect of nano-Al2O3 concentrations on the charge transportcharacteristics were investigated. The results are useful to understand the interface effect and the transport of carriers in the dielectric composites.
برای دانلود رایگان مقاله آلومینیوم نانوکامپوزیت اکسید اینجا کلیک نمایید.
کلمات کلیدی:
Depth-Dependent Electrical Impedance Distribution in Al2O3 Films on ... pubs.acs.org/doi/full/10.1021/la001009h by I Popova - 2000 - Cited by 10 - Related articles Nov 18, 2000 - Depth-Dependent Electrical Impedance Distribution in Al2O3 Films on ... Al metal is covered with an oxide film.1 The electrical conductivity of this film ... In the presence of the potential gradient across the oxide film (within the ... Homojunction Solution-Processed Metal Oxide Thin-Film Transistors ... pubs.acs.org/doi/pdf/10.1021/am405712m by JH Kim - 2014 - Cited by 3 - Related articles Mar 10, 2014 - an electrode, the patterned InOx thin film had low resistivity, and as a channel, ... metal oxide TFTs.7−9 These structures had good electrical performance. .... and the Al 2p peak showed a gradient distribution in the InOx layer. [PDF]Mechanical and physical properties of engineering alumina ceramics www.vtt.fi/inf/pdf/tiedotteet/1996/T1792.pdf by P Auerkari - 1996 - Cited by 153 - Related articles Keywords aluminium oxide, ceramics, mechanical properties, physical properties, thermodynamic properties, electrical properties, manufacturing, temperature, elastic properties, ..... gradient. (ac), kV/mm at thickness of. 0.3 mm. 5 mm. Loss tangent tan δ .... A typical distribution of the flexural strength of engineering alumina. Static and Dynamic Magnetization of Gradient FeNi Alloy Nanowire ... https://www.nature.com › Scientific Reports › Articles by H Yang - 2016 - Cited by 6 - Related articles Feb 11, 2016 - The magnetic properties of homogeneous FeNi nanowires have been ... highly ordered magnetic nanostructures, porous anodic aluminum oxide ... The elemental line-scanning indicates the gradient distribution of Ni and Fe. Translation Title List and Cross Reference Guide https://books.google.com/books?id=vW-8VssxcjgC Frances E. Stratton - 1961 - Science ... chloride-potassium chloride systems electric conductivity and phase studies, ... systems; Aluminum oxide –magnesium fluoride-sodium fluoaluminate systems) ... of constant gradient, AEC-tr–2641 deformation of nuclear resonance signals, ... AEC-tr-2597 electron velocity distribution in, AEC-tr-2617 focusing properties, ...
