5篇
您的检索式：作者名="Sun laijun"
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| 1 | Applying empirical mode decomposition (EMD) and entropy to diagnose circuit breaker faults 显示文摘 | Liu Mingliang Wangkeqi Sun laijun | 2015 | International Journal for Light and Electron Optics2015，126，20： | 1 |
| 2 | Dielectric properties of BiAlO3-modified (Na,K,Li)NbO3 lead-free ceramics显示文摘 | SUN Xiaojun DENG Jianming LIU Laijun | 2016 | Mater Res Bull2016，73，43： | 1 |
| 3 | Comprehensive safety state assessment method of cuplok scaffolding显示文摘 | LIU LaiJun CHEN Yongrui Sun WeiGang | 2015 | Journal of Chang''an University ( Natural Science Edition)2015，35，3： | 1 |
| 4 | Dielectric Properties of Unfilled Tetragonal Tungsten Bronze Ba4PrFe(0.5)Nb(9.5)O(30) Ceramics显示文摘In order to found new dielectrics ceramics in tungsten bronze structure, unfilled tungsten bronze(TB) ceramics with nominal formula Ba_4PrFe_(0.5)Nb_(9.5)O_(30) were prepared by the solid state reaction method. The microstructure and dielectric properties were studied using powder X-ray diffraction, field emission scanning electron microscope, and variable temperature dielectric test system. The results show that the ceramics have a single phase and belong to the space group of P4bm with the cell of a = b = 12.4839(3) ?, c = 3.9409(5) ?, V = 614.192(2) ?3. The frequency dependent dielectrics properties show that the ceramics have a Debye-like relaxation at room temperature, while the temperature dependent dielectrics properties indicate that the ceramics are a relaxor and the relaxation is due to the nanopolars and oxygen vacancies. The ceramics have a potential application in electronic ceramics as temperature-stable multilayer ceramic capacitors. | 胡长征 ZHU Qihua SUN Zhen GUO Zhe LIU Laijun FANG Liang | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，4： | 1 |
| 5 | Influence of interface point defect on the dielectric properties of Y doped CaCu_(3)Ti_(4)O_(12) ceramics显示文摘CaCu_(3)Ti_(4-x)Y_(x)O_(12)(0≤x≤0.12)ceramics were fabricated with conventional solid-state reaction method.Phase structure and microstructure of prepared ceramics were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM),respectively.The impedance and modulus tests both suggested the existence of two different relaxation behavior,which were attributed to bulk and grain boundary response.In addition,the conductivity and dielectric permittivity showed a step-like behavior under 405 K.Meanwhile,frequency independence of dc conduction became dominant when above 405 K.In CCTO ceramic,rare earth element Y^(3+)ions as an acceptor were used to substitute Ti sites,decreasing the concentration of oxygen vacancy around grainelectrode and grain boundary.The reason to the reduction of dielectric behavior in low frequencies range was associated with the Y doping in CCTO ceramic. | Jianming Deng Xiaojun Sun Saisai Liu Laijun Liu Tianxiang Yan Liang Fang Brahim Elouadi | 2016 | Journal of Advanced Dielectrics2016，6，1： | 0 |
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