An advanced 3D atom probe analysis facility

先进的 3D 原子探针分析设施

• 批准号: EP/D077664/1
• 负责人: George Smith
• 金额: $ 207.36万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FD077664%2F1
• 关键词: advanced; 3D; atom; probe; analysis

New materials increasingly rely on chemical effects at a very fine scale, sometimes at the atomic level. Understanding how these materials work, how they degrade in service and how we can improve them requires knowledge of how they are put together at this scale. The three-dimensional atom probe (3DAP), first developed at Oxford University, is the only way of seeing the microstructure of materials, atom-by-atom in 3-dimensions. In this way, the 3DAP can be thought of as giving scientists the molecular biology of materials and so helping them understand how materials work. This project aims to greatly improve the existing 3DAP analysis facilities and so provide advanced capabilities for materials analysis at the atomic-scale for scientists in the UK. The instrumentation developed in the project will allow larger volumes of material to be analysed in much shorter times than previously, so that more of the material microstructure can be seen, and also allow semiconductor materials and devices to be studied. Once the new instrumentation is developed, it will be used to study a number of technologically important materials science problems, such as the formation of copper clusters in steels used for the pressure vessels in the reactors on nuclear-powered submarines. The multilayer materials which are being developed for the next generation of read heads in computer hard disks will also be investigated, in order to understand better the way that the structure and the chemistry of these layers control their properties. By linking experiments and modelling at the atomic scale, this project will produce better tools for the design and development of new materials and nanotechnology devices.

新材料越来越多地依赖于非常精细的化学效应，有时甚至是原子水平。了解这些材料如何工作，它们在使用中如何降解以及我们如何改进它们，需要了解它们如何在这种规模下组合在一起。三维原子探针（3DAP）首先由牛津大学开发，是观察材料微观结构的唯一方法，在三维空间中逐个原子。通过这种方式，3DAP可以被认为是为科学家提供材料的分子生物学，从而帮助他们了解材料如何工作。该项目旨在大幅改进现有的3DAP分析设施，从而为英国科学家提供原子尺度材料分析的先进能力。该项目开发的仪器将允许在比以前更短的时间内分析更大体积的材料，以便可以看到更多的材料微观结构，并允许研究半导体材料和器件。一旦新仪器开发出来，它将被用于研究一些技术上重要的材料科学问题，例如用于核动力潜艇反应堆压力容器的钢中铜簇的形成。为了更好地理解这些层的结构和化学性质控制其性能的方式，还将研究为下一代计算机硬盘读头开发的多层材料。通过将实验和原子级建模联系起来，该项目将为新材料和纳米技术设备的设计和开发提供更好的工具。

项目成果

Oxidation and Surface Segregation Behavior of a Pt-Pd-Rh Alloy Catalyst

• DOI: 10.1021/jp508144z
• 发表时间: 2014-11-13
• 期刊: JOURNAL OF PHYSICAL CHEMISTRY C
• 影响因子: 3.7
• 作者: Bagot, Paul A. J.;Kruska, Karen;Smith, George D. W.
• 通讯作者: Smith, George D. W.

On the effect of boron on grain boundary character in a new polycrystalline superalloy

• DOI: 10.1016/j.actamat.2015.10.006
• 发表时间: 2016-01-15
• 期刊: ACTA MATERIALIA
• 影响因子: 9.4
• 作者: Kontis, P.;Yusof, H. A. Mohd;Reed, R. C.
• 通讯作者: Reed, R. C.

Oxidation behaviour of a next generation polycrystalline Mn containing Ni-based superalloy

• DOI: 10.1016/j.scriptamat.2015.10.001
• 发表时间: 2016-03
• 期刊: Scripta Materialia
• 影响因子: 6
• 作者: S. Pedrazzini;D. J. Child;G. West;S. Doak;M. Hardy;M. Moody;P. Bagot

Characterization of oxidation mechanisms in a family of polycrystalline chromia-forming nickel-base superalloys

• DOI: 10.1016/j.actamat.2021.116626
• 发表时间: 2021-03
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: M. Lapington;D. Crudden;Roger C. Reed;Michael P. Moody;P. Bagot

Large-Scale Atom Probe Tomography Data Mining: Methods and Application to Inform Hydrogen Behavior

大规模原子探针断层扫描数据挖掘：了解氢行为的方法和应用

• DOI: 10.1093/micmic/ozad027
• 发表时间: 2023
• 期刊: Microscopy and Microanalysis
• 影响因子: 2.8
• 作者: Meier M