it increases the capacitor's capacitance, i.e., its ability to store opposite charges on each plate. However, this doesn't happen when the capacitor plates are separated by a vacuum. This is why the dielectric constant value of any dielectric material is always greater than the dielectric va...
the microwave dielectric substrates, which have high Q value, stable temperature and wide rangeofdielectric constant. phononmeiwa.co.jp phononmeiwa.co.jp 通過本公司長年培育而成的陶瓷材料技術,開發了微波用介電體基版,可在高頻率範圍內獲得高的Q值及擁有穩定 的溫度特性,並且介電常數範圍寬廣。
The peak value of the dielectric constant is consistently reciprocal with the frequency, as stated by Curie–Weiss law. A tuneable dielectric response has also been obtained in (H2DABCO)(NH4) [BF4]3 with the help of thermionic excitation [21]. The single crystals of this compound can sustain...
The dielectric constant of LiInSe2 and its temperature dependence were determined from capacitance measurements. The dielectric constant is 9.4 at room temperature. The value is discussed with the relationship of ε(0)=1+(\hbarωp/Eg)2. The dielectric constant varies linearly with temperature in ...
The optimal slip ratio control is achieved by maintaining the slip ratio to the value to give the maximum road friction. This means that the driving force of the vehicle is fixed at its maximum level. As the driving force is affected by highly nonlinear adhesion characteristics between tire ...
whereεsrepresents the static dielectric constant, i.e., the dielectric constant value at zero frequency,ε∞represents the dielectric constant at frequencies so high that molecular orientation does not have time to contribute to the polarization, andτis the relaxation time in second. ...
The second important and highly variable property of water is thedielectric constant.Fig. 3shows the dependence of the dielectric constant on temperature and pressure(12). This parameter is a measure of the polarity of a solvent; a solvent with a large value can dissolve polar and ionic materia...
If the constraint is removed, the measurement yields ε T , the "unclamped" or free dielectric constant. The temperature of the measurement is given when available; the symbol r.t. indicates a value at nominal room temperature. The frequency of the measurement is given in the last column (...
This time-dependent dielectric-constant increase (TDDI) was estimated for a practical operating condition by extrapolation. The extrapolated TDDI lifetimes and k k -value increases for tested materials (k=2.33.2) (k=2.33.2) ranged from 30 days to 1,000 years and from 0 to 23%, respectively...
Towards low frequencies, the dielectric constant of a composite with about 2.0 vol % of MWNT increases rapidly and the value of the dielectric constant is as high as 300. However, by a calculation, the percolation threshold of the MWNT/PVDF composites is only 1.61 vol % (0.0161 volume ...