Thermally sprayed coating for high temperature static seals in aeroengines

用于航空发动机高温静密封的热喷涂涂层

• 批准号: 530409-2018
• 负责人: Chromik, Richard
• 金额: $ 8.2万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=692983
• 关键词: Thermally; sprayed; coating; temperature; static

Reliability, safety and sustainability are all significant driving forces in the aerospace industry. Developments of new materials, processes and manufacturing steps, must meet these needs and also be economically viable. This proposal is focused on addressing these driving forces for a particular component that is found throughout a gas turbine engine, called a 'static seal'. This seal brings the surfaces of two components together to create a barrier between two sections of the engines at differing temperatures. The challenge is that the seal experiences vibration and exposure to high temperatures that leads to damage and eventual failure of the seal. Current technology for static seals is only capable of meeting the needs of the current generation of engines and do so with the caveat that seals will need to be inspected, repaired and replaced quite regularly. Using thermal spray, a technology that applies a protective coating, we will develop four new coatings based on materials that have shown promise for their high temperature capabilities. Development of innovative coatings that resist damage at high temperatures better than current technology will make static seals in gas turbine engines more reliable, safer and sustainable.

可靠性，安全性和可持续性都是航空航天行业的重要驱动力。新材料，过程和制造步骤的发展必须满足这些需求，并且在经济上也可行。该提案的重点是针对整个燃气轮机发动机（称为“静态密封””的特定组件的这些驱动力。此密封将两个组件的表面融合在一起，以在不同温度下的两个发动机之间形成屏障。挑战在于，密封会经历振动和暴露于高温，从而导致密封的损坏和最终故障。当前的静态密封技术技术只能满足当前发动机的需求，并在需要时需要定期检查，维修和更换密封件。使用热喷雾剂（一种应用保护涂层）的技术，我们将根据对其高温能力有希望的材料开发四种新涂层。与当前技术更好地抵抗高温损害的创新涂料的开发将使燃气轮机发动机的静态密封更加可靠，更安全和可持续。