Study on Dielectric Character of SiO_2 under Applied Stress 应力作用下的SiO2介电特性研究
This paper discusses the difference of TDDB ( Time Dependence Dielectric Break down) under constant voltage and pulse voltage stress. 本文讨论了在直流电压应力和脉冲电压应力作用下栅氧化膜击穿寿命的差别,脉冲应力下栅氧化膜击穿寿命大于直流电压下的击穿。
In the theoretical research of the dielectric eigenvalue problem, stress is emphasized on the longitudinal characteristic modes in two-dimensionally periodic dielectric. 在介质本征值问题的理论研究中,重点研究二维周期介质纵向导波问题。
This-Simple delecting/ diagnostic technique is very useful in developing low-density dielectric growth process and process technologies with good stress match. 它将为研究针孔密度低的介质生长工艺和应力匹配性能优良的工艺技术提供一种简便的检测诊断方法。
Water dielectric, because of its great dielectric constant and high breakdown stress, is extensively used as the energy storage medium in high power pulse conditioning system. 水介质由于具有介电常数大和击穿场强较高的特点,普遍应用于高功率脉冲调制器作中间储能介质。
The dielectric properties, thermal conductivity, integrity and static bend stress were rejuvenated to the condition of new insulation after the injection. 灌注后绝缘的介电特性、热传导性、整体性和静弯曲应力恢复到新绝缘状态。
And as the high breakdown voltage goes through the crust, the dielectric strength of high resistance there would be seriously destroyed, thus making it possible to trigger the releasing of stress energy. 强大的击穿电流透过地壳时,使这里的高电阻层介质强度受到破坏,这就可能触发释放应力势能。
Reasons for thermo bimetal's corrosion lie in direct dielectric corrosion and stress flaw corrosion. 热双金属的腐蚀常由介质直接腐蚀和应力裂纹腐蚀所引起。
It's adapt to energy storage capacitor when it's used in the transducer So it's very important to pay research on the low dielectric constant, high acoustic impedance, good stress distribution, new encapsulation materials. 因此研究和开发具有低介电、高冲击阻抗及良好力学性能的新型封装材料就显得更加重要。
Firstly, the geometric effect and stress effect in twisted optical fiber was solved using the coupled mode theory, and the dielectric constant variation under twist stress was discussed. 首先利用耦合模理论求解了单模光纤扭转的几何效应和应力效应,研究了扭转应力下的介电常量变化。
Traditional ER fluids are composed of micro-sized dielectric particles and insulating oil, whose yield stress is too small to satisfy the need of the industrial applications. 传统的电流变液材料是由微米介电颗粒和油液共同组成,其屈服切应力常常不能满足实际应用的需要。
As more energy is required for dielectric breakdown and crack growth, the greater the tensile stress of propellant is, the higher the dielectric strength. 最大抗拉强度越大的推进剂,在击穿及形成裂纹时所需消耗的能量越多,击穿电场强度越大。
Low density polyethylene ( LDPE) is one of the most widely used plastic in electrical insulation field, it exhibits excellent dielectric property. However electrical trees initiate and spread easily in LDPE insulation subjected to high electric stress for long-time. 聚乙烯是电气绝缘领域中应用最为广泛的塑料之一,具有良好的电绝缘性能,但在高电场长期作用下,易产生电树枝,导致其绝缘性能下降。
Multilayer Ceramic Capacitors ( MLCC), in which hundreds of dielectric layers and internal electrodes are alternately stacked, are sensitive to thermal stress. 多层陶瓷电容器(MLCC)由几百层多层介质材料和金属电极叠加构成,对热应力十分敏感。