Continuous interface coating for SiC composites (CICSiC)

SiC 复合材料连续界面涂层 (CICSiC)

• 批准号: 69531
• 金额: $ 19.1万
• 依托单位: ARCHER TECHNICOAT LIMITED
• 依托单位国家: 英国
• 项目类别: BEIS-Funded Programmes
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=69531
• 关键词: Continuous; interface; coating; SiC; composites

Ceramic matrix composites (CMCs) are a vital material for improvement of efficiency in future aircraft engines, enabling higher turbine temperatures and offering the advantages of significantly lower weight, lower cooling requirements and lower aircraft emissions. The rate of introduction of these new materials can be improved by raising the predictability of material strength, enabling design engineers to have a greater degree of confidence in the life of the material.Interface coatings on fibre reinforcements are one of the critical components of CMCs and control of these coatings with tight tolerances is vital for ensuring reliable properties. Current batch coating methods only give a relatively low level of uniformity control. Complex components can show coating thickness variations, limiting the predictability of performance.This 'CICSiC' project aims to develop the coating technology, a novel prototype machine design and a UK based manufacturing partnership for the equipment which will coat the reinforcing silicon carbide (SiC) fibre for SiC based CMCs in a continuous mode. This mode will enable tight coating tolerance by treating the fibre before it is shaped into a thicker and complex shaped component preform where it becomes difficult to process all areas of the component with equal precision.There is significant global demand for this technology amongst customers of ATL (project lead) including engine manufacturers and component developers, as recent developments in the US have enabled GE Aviation to gain a competitive advantage. This project aims to enable technology to be developed and sold to a world market from a UK base. Customers of the planned product are keen to push the development through and understand the properties of the material produced by this new process.The project will take the existing batch coating process and apply knowledge from that to design and build prototype equipment which coats a moving SiC fibre on a continuous basis. Fibre handling expertise will be drawn both from SMEs and a research centre to form a knowledge base from which a production scale multi-tow plant is designed ready for manufacturing at the end of the project. End users of the coated fibre, including the German company now setting up the only SiC fibre plant outside Japan and the US, will form part of the consortium's test regime for the coated fibre to ensure it meets industrial requirements.

陶瓷基复合材料(CMCs)是提高未来飞机发动机效率的重要材料，它可以提高涡轮温度，并具有显著减轻重量、降低冷却要求和降低飞机排放的优点。这些新材料的引入速度可以通过提高材料强度的可预测性来提高，使设计工程师对材料的寿命有更大的信心。纤维增强材料上的界面涂层是CMCS的关键组件之一，控制这些涂层具有严格的公差对于确保可靠的性能至关重要。目前的批量涂布方法只给出了相对较低的均匀性控制水平。复杂的部件会表现出涂层厚度的变化，这限制了性能的可预测性。这个名为CICSiC的项目旨在开发涂层技术、一种新型的原型机器设计以及一种基于英国的制造合作伙伴关系，该设备将以连续模式为碳化硅CMC的增强碳化硅(SIC)纤维涂层。这种模式将通过在将纤维成形成更厚和复杂的形状的部件预制件之前对其进行处理来实现紧密的涂层公差，在该预制件中很难以相同的精度处理部件的所有区域。ATL(项目负责人)的客户(包括发动机制造商和部件开发商)对这项技术的全球需求很大，因为美国最近的发展使GE Aviation获得了竞争优势。该项目旨在使技术能够从英国基地开发并销售到世界市场。计划产品的客户热衷于推动这一开发，并了解由这一新工艺生产的材料的性能。该项目将采用现有的批量涂覆工艺，并应用其中的知识来设计和制造连续涂覆移动的碳化硅纤维的原型设备。将从中小企业和研究中心汲取纤维处理专业知识，以形成一个知识库，在此基础上设计一个生产规模的多丝束工厂，为项目结束时的生产做好准备。涂层纤维的终端用户，包括正在日本和美国以外建立唯一一家碳化硅纤维工厂的德国公司，将构成该财团涂层纤维测试制度的一部分，以确保其符合工业要求。