Dielectric confinement effect什么意思啊

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Dielectric confinement effect什么意思啊
Dielectric confinement effect什么意思啊

Dielectric confinement effect什么意思啊
介电限域效应
介电限域
介电限域是纳米微粒分散在异质介质中由于界面引起的体系介电增强的现象,主要来源于微粒表面和内部局域强的增强.当介质的折射率比微粒的折射率相差很大时,就产生了折射率边界,这就导致微粒表面和内部的场强比入射场强明显增加,这种局域强的增强称为介电限域.一般来说,过渡族金属氧化物和半导体微粒都可能产生介电限域效应,纳米颗粒的介电限域对光吸收、光化学、光学非线性等都会有重要的影响.
纳米材料的特性的表现
A .特殊的光学性质:金属超微颗粒对光的反射率很低,通常可低于l%,大约几微米的厚度就能完全消光.B.特殊的热学性质:超细微化后其熔点将显著降低,当颗粒小于10纳米量级时尤为显著.C.特殊的磁学性质:当颗粒尺寸减小到 2*10-2微米以下时,其矫顽力可增加1千倍,若进一步减小其尺寸,大约小于 6*10-3微米时,其矫顽力反而降低到零,呈现出超顺磁性.D.特殊的力学性质:强度、柔韧度、延展性E.特殊的电学性质:原来是导体的铜等金属,在尺寸减少到几个纳米时不导电;绝缘的二氧化硅等,电阻会大大下降,失去绝缘特性,变得能导电了

介电限域效应

dielectric dielectric dielectric current是什么意思 dielectric filter是什么意思 Dielectric-Constant是什么意思 dielectric strength是什么意思 dielectric strength是什么意思 谁能帮我解释一下这四个东西的意思?– Dielectric-dielectric– Dielectric-metal– Maxwell’s equations– Radiation 英语翻译PAPER-PLASTIC DIELECTRIC什么意思? NOMINAL DIAMETER OVER DIELECTRIC求翻译 Dielectric confinement effect什么意思啊 Dielectric Strength:1,500V RMS @sea level 翻译Tape shall be adhered to dielectric during jacket. 英语翻译The dielectric function was calculated in the momentum representation,which requires matrix elements of the momentum,q,connecting occupied and unoccupied eigenstates.To be specific,the imaginary part of the dielectric function,E2,was calc ConclusionA laboratory scale microwave freeze drying apparatus wasdeveloped aimed at experimentally verifying the beneficialeffect of a dielectric material on freeze drying with microwaveheating.Sintered SiC was used as the dielectric material.Mannit 这怎么翻译?物理方面Dielectric strength is defined as the voltage per unit length (electric field or voltage gradient) at which failure occurs and thus is the maximum electric field that the dielectric can maintain without electrical breakdow 科技英语翻译,高手请进If the appliance employs a component, such as a solid-state device, that can be damaged by the dielectric potentia. Aramid Yarn就是芳纶纱么?如题,还有就是Dielectric Fiber Glass Armour是什么? 有用这种东西当光缆的铠装材料么?