Dielectric glass ceramics for antenna applications

用于天线应用的介电玻璃陶瓷

• 批准号: 1802329
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1802329
• 关键词: Dielectric; glass; ceramics; antenna; applications

Glass-ceramics are fabricated by the controlled devitrification of glass. There are many applications which make use of glass ceramics for their thermal and mechanical properties but recently there has been significant interest glass-ceramic for a range of applications varying from MW dielectric substrates for antennas to high breakdown strength dielectrics for capacitors in power electronics. This project will explore new formulations of glass ceramics for a range of applications with the aim to explore their complex crystallisation behaviour and how it influences properties over a wide range of frequencies. The student will structurally and microstructurally characterise the materials using a combination of X-ray diffraction and scanning and transmission electron microscopy and use the data generated to interpret dielectric behaviour as a function of composition and temperature.

微晶玻璃是通过控制玻璃的脱硝而制成的。由于其热学和机械性能，玻璃陶瓷有许多应用，但最近人们对玻璃陶瓷的广泛应用产生了极大的兴趣，从用于天线的毫瓦介电基片到用于电力电子电容器的高击穿强度介电材料。该项目将探索玻璃陶瓷的新配方，用于一系列应用，目的是探索其复杂的结晶行为，以及它如何在广泛的频率范围内影响性能。学生将使用x射线衍射、扫描和透射电子显微镜的组合来描述材料的结构和微观结构特征，并使用生成的数据来解释介电行为作为成分和温度的函数。