Suspension plasma sprayed (SPS) ceramics for extreme environment

航空发动机制造是一个不断增长的行业，预计到2030年每年生产228，000台发动机。这些航空发动机将需要表面工程解决方案来防止磨损：无润滑和润滑，微动和可磨损条件。此外，航空航天工业致力于使用可持续材料实现低排放和环境友好的解决方案。该博士项目将专注于使用新兴的悬浮等离子喷涂（SPS）技术开发用于极端环境的新型陶瓷涂层组合物：高功率，高效率和高速三阴极轴向喷射等离子体源。SPS是一种涂层沉积技术，其中材料原料在等离子射流中注入，熔化并加速向基材，在基材中快速固化形成涂层。该项目将涉及沉积新型超高温涂层，开发喷涂原料处理的新方法，通过先进的原位显微镜技术和高温（1000 ℃）条件下的磨损测试对涂层进行研究。材料表征将包括原位显微镜技术，如高分辨率扫描和透射电子显微镜和拉曼光谱。

Aero engines manufacturing is a growing industry with an estimated annual production of 228,000 engines by 2030. These aero engines will require surface engineering solutions to protect from wear: unlubricated and lubricated, fretting and abradable conditions. In addition, the aerospace industry is committed to achieving lower emission and environmentally friendly solutions using sustainable materials.This PhD project will focus on the development of novel ceramic coatings compositions for extreme environments using an emerging Suspension Plasma Spray (SPS) technology: a high power, high efficiency and high velocity three cathode plasma source with axial injection. SPS is a coatings deposition technique where material feedstock is injected in a plasma jet, melted and accelerated towards a substrate where it rapidly solidifies in forming a coating.The project will involve the deposition of new ultra-high temperature resistant coatings, the development of new methods for spray feedstock treatment, the study of coatings through advanced in-situ microscopy techniques and wear testing under high-temperature (1000 C) conditions. Material characterisation will include in-situ microscopy techniques as high-resolution scanning and transmission electron microscopy and Raman spectroscopy.