A cubic lattice is used to form a simple engineering estimate of the dielectric constant of plastic foams of the type used to build target support structures for RCS test ranges. The estimate predicts slightly higher dielectric constants than an empirical estimate proposed by Cuming. The estimates ...
Apparatus for heating a plastic sheet uses a high dielectric constant material (HDCM) to shape an RF electric field (14) to be either concentrated or uniform as desired depending upon the object to be formed from the sheet (16). Electrodes (12a, 12b) can be annular with a circular or ...
Development of Plastic Distinction Device Base on Dielectric Constant and Light Reflection of Plastics 来自 ResearchGate 喜欢 0 阅读量: 25 作者:K Sumi,T Kato,N Katayama 摘要: Recently, in the automobile industry, developing a plastic material type distinction system has been highly demanded for ...
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Dielectric dispersion: This is the variation of the dielectric constant with the frequency of the applied electric field. It occurs because different types of polarization mechanisms have different response times to the changing field. For example, electronic polarization, which involves the displacement ...
If after cooling, the charges are immobilised, the dielectric will behave as an electrical equivalent of a permanent magnet. This is known as an electret (thermoelectrets in this case). An electret loses its volume charge exponentially but with a very large time constant (order of 100 years...
Diameter of single fiber(μm): 7.0 Strength at break(N/(25×100mm)): Warp:300/Weft:220 Thickness(mm): 0.2±0.02 Dielectric constant at 10GHz: 4.7 Dielectric loss tgδ(1GHZ): ≤0.0012 Moisture(%): ≤ 0.1 GENTLE HINT: We can produce other models,width can be as 1000mm,1050mm...
The dielectric constant of PP/SMA/PVDF blends increased with the growing content of PVDF, Appl. Sci. 2017, 7, 389 7 of 8 promoted the interactions between interfaces, thus realizing the good dielectric frequency stability of PP/PVDF blends. The dielectric constant of PP/SMA/PVDF blends ...
This work might open the door to large-scale fabrication of nanocomposite dielectrics with high overall properties through the cooperation of the plasticizer and high temperature. Keywords: dielectric; mechanical; nanocomposite; plasticizer; interface 1. Introduction High-dielectric-constant (high-k) ...
Color:black;Usage:Auto Testing Machine;Package:safety box for blact test corner;Warranty:1 Year;Brand:Bnd;matel club weight:100±2g;Standard:UL1310 IEC60065;max measure range:20mm;max strength:<12KV (altitude below 2000m);Product name:IEC 60065 dielectri