The dielectric constant was almost a constant, while the dielectric loss and temperature coefficient of dielectric constant were sensitive to the sintering conditions. 随着烧结条件的不同,介电常数几乎不变,但介电损耗以及介电常数的温度系数则较为敏感。
The effect of the content of α Al_ 2 O_ 3 nano-particles on the microstructure, dielectric breakdown strength, dielectric loss and dielectric constant of Al_ 2 O_ 3 coating was investigated. 研究了纳米αAl2O3粒子的添加量对涂层结构以及介电击穿强度、介电损耗和介电常数等介电性能的影响。
Electricity capability was tested and reformed much on the contrast of solid method, for example, sintering temperature was reduced, dielectric loss minished and dielectric constant was increased relatively. 与固相法相比,湿化学法制得的瓷料烧结温度降低,介电损耗减小,介电常数有了较大地提高。
BaTi 4O 9 ceramic possesses an excellent combination of low dielectric loss, moderate dieletric constant and low temperature coefficient of dielectric constant. BaTi4O9陶瓷具有优良的介电性能:低介质损耗、中等介电常数和低的介电常数温度系数。
The microwave complex dielectric constant was measured by strip line method. A novel low loss dielectric composite microwave application has been acquired. Its relative dielectric constant is 6.0~ 13.0. 获得了相对介电常数为6.0~13.0,且损耗低的高性能新型微波复合介质材料。
The results show that the materials which are prepared by sol gel process have high electromechanical coupling coefficients, low dielectric loss and suitability between dielectric constant and mechanical quality factor. 结果表明:SOLGEL法合成PZT粉制备的PMZN系压电陶瓷材料具有机电耦合系数高,介质损耗小,介电常数与机械品质因数适中等特点;
Magnesium titanate, possessing low dielectric loss and constant, is an important microwave dielectric ceramic material. It has a broad application prospect in modern communication field. 钛酸镁是重要的微波介质陶瓷材料,具有介电损耗低、介电常数低等特点,在现代通信领域具有广阔的应用前景。
At low frequency, the dielectric constant was moderate ( between 100 and 600), the lowest loss was only 0.002. As the frequency increased, dielectric constant changed little, but loss increased a little linearly. 低频下,BST/MgO/BZN的介电常数适中(100-600),最小损耗只有0.002,介电常数随频率变化不大,而介电损耗则随频率增加按线性略微增加。
Dielectric loss was increased with increasing of frequency, dielectric constant and dielectric loss of B system composite slightly higher than that of A system, under the same amount of inorganic doping conditions. 在相同无机掺杂量条件下,乙体系复合材料的介电常数和介电损耗略高于甲体系。
In addition, the factors which impact the dielectric and conductivity properties of ferroelectrics are discussed in this paper, which is the reference of manufacturing the ferroelectric ceramics that have low dielectrical loss, low dielectrical constant and low conductance ratio in future. 另外,本文讨论了影响铁电材料介电性质和电导性质的因素,为今后制备较低介电损耗、介电常数以及体电导率的铁电陶瓷材料提供了参考。