Abstract

The various properties of ferroelectric ceramics bring extremely rich colors to life. Its various properties such as dielectric properties, electromagnetic properties, and anti-magnetic interference properties have been successively studied in various fields, except for stone carvings, outdoor environmental sculptures, ornamental ceramics, etc. Because of its superior performance, it can also be used in aircraft manufacturing, anti-interference materials for train tracks, and can even realize unmanned driving, workshop networks and other environments, which can meet the normal operation of electronic equipment in the car under the state of preventing external electromagnetic interference. This requires the superior electromagnetic properties of ferroelectric ceramics. Dielectric properties, dielectric relaxation, and ferromagnetic effects all need to be optimized. This article first introduces the performance test methods of ferroelectric ceramics, and describes the dielectric relaxation through Debye equation He phenomenon, test dielectric loss and dipole interaction, magnetic coupling effect and multiferrocity, and carry out electromagnetic coexistence, based on MATLAB/Simulink rail vehicle dynamics model, composed of sensors, control center and bogie, forming a coupling The functioning anti-roll structure makes the magnetic potential energy evenly distributed in the track span, forming a single suspended electromagnet modular transportation train dynamic model, which can carry the load force of the air and the gravity of the module itself. The traditional solid-phase method is used to dope at the A site. As the doped sample gradually increases, the peak value of the derivative peak changes, causing the original diamagnetic sample to carry a certain degree of ferromagnetism, and the doping amount and ferromagnetism are positively correlated. Then, experiments were performed on the composite ferroelectric ceramic materials doped with ion pairs, and the tests were carried out at different temperatures and different doping amounts. The conclusions about the coupling of dielectric constant, dielectric loss, magnetic properties and magneto electric properties were obtained and obtained the anti-magnetic interference ability. The application in the anti-magnetic interference of rail trains has a certain guiding effect. The results show that when the doping amount reaches m = 0.02, the dielectric loss is reduced by 22.58 times. The impedance change rate of the ferroelectric ceramic material with no doped Al³⁺-Li ⁺ ion pair under 9 kOe is 3.95%, while at m = 0.015 Al³+ With -Li ⁺ doping, the impedance change rate of ferroelectric ceramics is 14.45%, which is 3.17 times the original.

摘要

铁电陶瓷的各种特性为生活带来了极其丰富的色彩。其介电性能、电磁性能、抗磁干扰性能等各项性能已陆续在各个领域得到研究，除石雕、户外环境雕塑、观赏陶瓷等外，由于其优越的性能，还可用于在飞机制造中，火车轨道的抗干扰材料，甚至可以实现无人驾驶、车间网络等环境，能够满足车内电子设备在防止外界电磁干扰的状态下正常运行。这就需要铁电陶瓷具有优越的电磁性能。介电特性，介电弛豫，和铁磁效应都需要优化。本文首先介绍铁电陶瓷的性能测试方法，并通过德拜方程He现象描述介电弛豫，测试介电损耗和偶极子相互作用、磁耦合效应和多铁性，并进行电磁共存，基于MATLAB/Simulink轨道车辆动力学模型，由传感器、控制中心和转向架组成，形成一个联轴器作用的防侧倾结构使磁势能均匀分布在轨道跨度内，形成单悬浮电磁铁模块化运输列车动力学模型，可承载空气和模块本身的重力。A位采用传统固相法进行掺杂。随着掺杂样品逐渐增加，导峰峰值发生变化，使原抗磁性样品带有一定程度的铁磁性，掺杂量与铁磁性呈正相关。然后，对掺杂离子对的复合铁电陶瓷材料进行了实验，并在不同温度和不同掺杂量下进行了测试。得到了介电常数、介电损耗、磁特性和磁电特性耦合的结论，得到了抗磁干扰能力。在轨道列车抗磁干扰中的应用具有一定的引导作用。结果表明，当掺杂量达到 掺杂量与铁磁性呈正相关。然后，对掺杂离子对的复合铁电陶瓷材料进行了实验，并在不同温度和不同掺杂量下进行了测试。得到了介电常数、介电损耗、磁特性和磁电特性耦合的结论，得到了抗磁干扰能力。在轨道列车抗磁干扰中的应用具有一定的引导作用。结果表明，当掺杂量达到 掺杂量与铁磁性呈正相关。然后，对掺杂离子对的复合铁电陶瓷材料进行了实验，并在不同温度和不同掺杂量下进行了测试。得到了介电常数、介电损耗、磁特性和磁电特性耦合的结论，得到了抗磁干扰能力。在轨道列车抗磁干扰中的应用具有一定的引导作用。结果表明，当掺杂量达到 得到了介电常数、介电损耗、磁特性和磁电特性耦合的结论，得到了抗磁干扰能力。在轨道列车抗磁干扰中的应用具有一定的引导作用。结果表明，当掺杂量达到 得到了介电常数、介电损耗、磁特性和磁电特性耦合的结论，得到了抗磁干扰能力。在轨道列车抗磁干扰中的应用具有一定的引导作用。结果表明，当掺杂量达到m  = 0.02，介电损耗降低22.58倍。未掺杂Al ^{3 +} -Li  ⁺ 离子对的铁电陶瓷材料在9 kOe下的阻抗变化率为3.95%，而在m  =0.015 Al ³ + 有-Li  ⁺ 掺杂时，铁电陶瓷的阻抗变化率为14.45 %，是原来的 3.17 倍。