Material Systems for Extreme Environments

适用于极端环境的材料系统

• 批准号: EP/K008749/1
• 负责人: Jon Binner
• 金额: $ 545.36万
• 依托单位: Loughborough University
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FK008749%2F1
• 关键词: Material; Systems; Extreme; Environments

The conditions in which materials are required to operate are becoming ever more challenging. Operating temperatures and pressures are increasing in all areas of manufacture, energy generation, transport and environmental clean-up. Often the high temperatures are combined with severe chemical environments and exposure to high energy and, in the nuclear industry, to ionising radiation. The production and processing of next-generation materials capable of operating in these conditions will be non-trivial, especially at the scale required in many of these applications. In some cases, totally new compositions, processing and joining strategies will have to be developed. The need for long-term reliability in many components means that defects introduced during processing will need to be kept to an absolute minimum or defect-tolerant systems developed, e.g. via fibre reinforcement. Modelling techniques that link different length and time scales to define the materials chemistry, microstructure and processing strategy are key to speeding up the development of these next-generation materials. Further, they will not function in isolation but as part of a system. It is the behaviour of the latter that is crucial, so that interactions between different materials, the joining processes, the behaviour of the different parts under extreme conditions and how they can be made to work together, must be understood.Our vision is to develop the required understanding of how the processing, microstructures and properties of materials systems operating in extreme environments interact to the point where materials with the required performance can be designed and then manufactured. Aligned with the Materials Genome Initiative in the USA, we will integrate hierarchical and predictive modelling capability in fields where experiments are extremely difficult and expensive.The team have significant experience of working in this area. Composites based on 'exotic' materials such as zirconium diborides and silicon carbide have been developed for use as leading edges for hypersonic vehicles over a 3 year, DSTL funded collaboration between the 3 universities associated with this proposal. World-leading achievements include densifying them in <10 mins using a relatively new technique known as spark plasma sintering (SPS); measuring their thermal and mechanical properties at up to 2000oC; assessing their oxidation performance at extremely high heat fluxes and producing fibre-reinforced systems that can withstand exceptionally high heating rates, e.g. 1000oC s-1, and temperatures of nearly 3000oC for several minutes.The research planned for this Programme Grant is designed to both spin off this knowledge into materials processing for nuclear fusion and fission, aerospace and other applications where radiation, oxidation and erosion resistance at very high temperatures are essential and to gain a deep understanding of the processing-microstructure-property relations of these materials and how they interact with each other by undertaking one of the most thorough assessments ever, allowing new and revolutionary compositions, microstructures and composite systems to be designed, manufactured and tested. A wide range of potential crystal chemistries will be considered to enable identification of operational mechanisms across a range of materials systems and to achieve paradigm changing developments. The Programme Grant would enable us to put in place the expertise required to produce a chain of knowledge from prediction and synthesis through to processing, characterisation and application that will enable the UK to be world leading in materials for harsh environments.

材料的工作条件变得越来越具有挑战性。在制造、能源生产、运输和环境清洁的所有领域，工作温度和压力都在增加。通常高温与恶劣的化学环境和暴露于高能量相结合，在核工业中，暴露于电离辐射。能够在这些条件下工作的下一代材料的生产和加工将是不平凡的，特别是在许多这些应用所需的规模上。在某些情况下，必须开发全新的成分、加工和连接策略。许多组件需要长期可靠性，这意味着需要将加工过程中引入的缺陷保持在绝对最低限度，或者开发缺陷容忍系统，例如通过纤维增强。将不同长度和时间尺度联系起来以定义材料化学、微观结构和加工策略的建模技术是加快这些下一代材料开发的关键。此外，它们不会孤立地运作，而是作为一个系统的一部分。后者的行为至关重要，因此必须了解不同材料之间的相互作用，连接过程，不同部件在极端条件下的行为以及如何使它们协同工作。我们的愿景是发展对加工过程，在极端环境下工作的材料系统的微观结构和性能相互作用，达到可以设计出具有所需性能的材料的程度，然后制造的。与美国的Materials Genome Initiative保持一致，我们将在实验极其困难和昂贵的领域整合分层和预测建模能力。该团队在该领域拥有丰富的工作经验。基于二硼化锆和碳化硅等“奇异”材料的复合材料已被开发用于高超声速飞行器的前缘，为期3年，DSTL资助了与该提案相关的3所大学之间的合作。世界领先的成就包括：使用相对较新的放电等离子烧结（SPS）技术，在不到10分钟的时间内实现致密化;在高达2000 oC的温度下测量材料的热性能和机械性能;评估它们在极高热通量下的氧化性能，并生产出能够承受极高加热速率（例如1000 oC s-1）的纤维增强系统，这项计划拨款的研究计划，旨在将这些知识应用于核聚变和裂变的材料加工，航空航天和其他辐射应用，在非常高的温度下的抗氧化性和抗侵蚀性是必不可少的，为了深入了解加工微观结构，通过进行有史以来最彻底的评估之一，研究这些材料的性能关系以及它们如何相互作用，从而设计、制造和测试新的革命性成分、微观结构和复合材料系统。将考虑广泛的潜在晶体化学，以确定各种材料系统的运行机制，并实现范式变化的发展。该计划赠款将使我们能够到位所需的专业知识，以产生从预测和合成到加工，表征和应用的知识链，这将使英国成为世界领先的恶劣环境材料。

项目成果

Development of a slurry injection technique for continuous fibre ultra-high temperature ceramic matrix composites

• DOI: 10.1016/j.jeurceramsoc.2019.05.070
• 发表时间: 2019-11
• 期刊: Journal of the European Ceramic Society
• 影响因子: 5.7
• 作者: B. Baker;V. Rubio;P. Ramanujam;J. Binner;Amjad Hussain;T. Ackerman;P. Brown;I. Dautremont

Qualitative analysis of hafnium diboride based ultra high temperature ceramics under oxyacetylene torch testing at temperatures above 2100°C

2100℃以上氧乙炔炬测试下二硼化铪基超高温陶瓷的定性分析

• DOI: 10.1016/j.jeurceramsoc.2013.11.018
• 发表时间: 2014
• 期刊: Journal of the European Ceramic Society
• 影响因子: 5.7
• 作者: Carney C

DFT Predictions of Crystal Structure, Electronic Structure, Compressibility, and Elastic Properties of Hf-Al-C Carbides

Hf-Al-C 碳化物晶体结构、电子结构、压缩性和弹性性能的 DFT 预测

• DOI: 10.1111/jace.14361
• 发表时间: 2016-10-01
• 期刊: JOURNAL OF THE AMERICAN CERAMIC SOCIETY
• 影响因子: 3.9
• 作者: Bai, Yuelei;Duff, Andrew;Lee, William Edward
• 通讯作者: Lee, William Edward

Use of Electrophoretic Impregnation and Vacuum Bagging to Impregnate SiC Powder into SiC Fiber Preforms

利用电泳浸渍和真空袋将 SiC 粉末浸渍到 SiC 纤维预制件中

• DOI: 10.1111/ijac.12143
• 发表时间: 2013
• 期刊: International Journal of Applied Ceramic Technology
• 影响因子: 2.1
• 作者: Binner J

Microwave heated chemical vapour infiltration of SiC powder impregnated SiC fibre preforms

微波加热化学气相渗透碳化硅粉末浸渍碳化硅纤维预制件

• DOI: 10.1179/1743676112y.0000000071
• 发表时间: 2013
• 期刊: Advances in Applied Ceramics
• 影响因子: 2.2
• 作者: Binner J