Research on Inner Polar Phase effects for high frequency absorbing materials

在该项目中，乌克兰和德国科学家组成的跨学科团队将共同研究基于内极性相材料的介电吸收效应，这些材料可用作未来的电磁（EM）屏蔽，用于扩展电磁通信（例如物联网）所需的物理信息安全和干扰抑制。主要方法是研究具有内极性相（IPP）的可沉积复合材料和陶瓷，也称为内极性，并研究高频电磁辐射吸收的潜力。Poplavko Y.和Tatarchuk D（作为墨卡托研究员参与）。 主要发现是，特殊的介电材料显示出出乎意料的高损耗，这无法用科学文献中任何已知的损耗机制来解释。在本项目中，将对复合材料在特高频、超高频和高频上的电磁波吸收理论进行概括，并对不同频段的具体情况进行详细说明。解释这种效应的实际理论是在特殊材料中存在IPP，例如晶体和陶瓷（例如PZT陶瓷，SrBaTiO 3）。用于屏蔽的IPP材料的主要优点是不存在金属基屏蔽中发生的能量反射。该项目的第二个范围是在1至1000平方厘米的技术表面上制备具有均匀吸收性能的涂层的技术研究。为了研究吸收特性，将采用高频涡流（HFEC）光谱系统并开发用于IPP材料的表征。在该项目中开发的材料可用于屏蔽设备和分离电子部件免受高频电磁场的影响，用于信息安全，银行安全（NFC芯片卡）以及环境和健康安全研究中心免受工业设备EM辐射的有害影响。这些材料可以作为制造屏蔽涂层的基础，其吸收系数由外部电场或磁场控制。在这个项目中，Tatarchuk在基辅的团队将作为墨卡托研究员，专注于理论上的内极性相材料研究，并对新材料成分进行数学建模。豪雅在德累斯顿工业大学的团队专注于电子技术研究，尤其是材料和实验验证。在基于HFEC光谱的表征领域，豪雅集团开发了一系列无损材料测试设备并获得专利，这些设备基于HFEC的物理特性，工作频率范围为100 kHz至100 MHz。这些设备将被调整，并将开发用于IPP材料表征和SHF行为预测的物理模型和算法。

Within this project, an interdisciplinary team of Ukrainian and German scientists will work together to search on dielectric absorption effects based on materials with inner polar phase that could be used as future electromagnetic (EM) shielding for physical information security and interference suppression needed for extended electromagnetic communication (e.g. Internet of Things). The main approach is research of depositable composite materials and ceramics with inner polar phase (IPP) also known as internal polarity and study the potential for high frequency EM radiation absorption. The inner polar phase loss mechanism in dielectric materials have been investigated by Poplavko Y. and Tatarchuk D (to be involved as Mercator fellow) since 1990. The main findings are that special dielectric materials show unexpectedly high losses that could not be explained by any known loss mechanisms in the scientific literature. During this project the theory of EM waves absorption by complex materials on the extra high, super high and high frequencies will be generalized and specifics for different frequency bands will be detailed. The actual theory to explain this effect is the presence of an IPP in special materials e.g. crystals and ceramics (e.g. PZT ceramics, SrBaTiO3). The main advantage of IPP-Materials for shielding is the absence of energy reflection as occurs in metallic based shielding’s. The second scope of the project is technological research of preparing coatings with homogeneous absorbing properties on technical surfaces from 1 to 1000 cm2. To study the absorbing properties a High Frequency Eddy Current (HFEC) spectroscopy system will be adapted and developed for characterization of IPP-Materials. Materials developed in the project could be used to shield devices and separate electronic parts against the influence of HF EM field, in research centers for informational safety, bank safety (NFC chip cards) and for the environmental and health safety from the harmful effects of EM radiation of industrial devices. Those materials could be a basis for creating shielding coatings with the absorption coefficient managed by outer electrical or magnetic fields. In this project, Tatarchuk’s group in Kyiv will focus as Mercator fellow on research of inner polar phase materials in theory and performing mathematical modelling of new material compositions. Heuer’s group at TU Dresden is focused on electronic technology research, especially materials and experimental validation. In the field of characterization based on HFEC Spectroscopy Heuer’s group have developed and patented series of non-destructive materials testing devices, which are based on physics of HFEC and operate on frequency range of 100kHz up to 100 MHz. These devices will be adapted and a physical model and algorithm for IPP-Material characterization and SHF behavior prediction will be developed.