Developing new methods for studying the local atomic structure in the FeCo alloys needed for electric aircraft

开发研究电动飞机所需 FeCo 合金局部原子结构的新方法

基本信息

批准号：
2884399
负责人：
金额：
--
依托单位：
University of Cambridge
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2884399
关键词：
Developing new methods studying local

项目摘要

There is a pressing need to reduce the emissions produced by civil aviation in order to meet global and national climate change targets. One of the key ways this could be achieved is by the use of electric aircraft for short haul aviation. To realise this transition, new higher-power density electric motors are required. Latest designs of these electric motors take advantage of high performance FeCo soft magnetic alloys for the motor cores. However, for these materials to be used in civil aviation a thorough understanding of the origins of these materials exceptional properties is needed to ensure safety. One of the important factors thought to impact these properties is the atomic arrangement of the Fe and Co atoms in these alloys. These arrangements can be ordered or disordered and can be over different length scales of the alloy. The main target of this project is to investigate short range ordering in these alloys. To achieve this, the local atomic structure in these alloys will be investigated using a state-of-the-art FEG monochromated, and probe corrected scanning transmission electron microscope recently installed in the Department of Materials Science and Metallurgy at Cambridge. New methods will be developed to characterise the short-range order and local atomic structure of these alloys. Once such methods have been established it will be used to investigate how this local structure formed by different processing conditions impacts the mechanical and magnetic properties of the FeCo alloys.

为了满足全球和国家气候变化目标，需要减少民航产生的排放量。可以实现这一目标的关键方法之一是使用电动飞机进行短途航行。为了实现这一过渡，需要新的高功率密度电动机。这些电动机的最新设计利用了电动机芯的高性能FECO软磁合金。但是，要使这些材料用于民航中，需要对这些材料的起源进行彻底了解以确保安全性。被认为影响这些特性的重要因素之一是这些合金中Fe和Co原子的原子排列。这些布置可以订购或无序，并且可以超过合金的不同长度。该项目的主要目标是研究这些合金中的短距离顺序。为了实现这一目标，将使用最先进的FEG单色研究这些合金中的局部原子结构，并将探针校正了最近在剑桥材料科学和冶金系中安装的扫描传输电子显微镜。将开发新方法来表征这些合金的短距离顺序和局部原子结构。一旦建立了这种方法，它将用于研究该局部结构如何由不同的加工条件形成，从而影响FECO合金的机械和磁性特性。