Synthesis and Accelerated Testing of Oxynitride Films for High Temperature Applications
高温应用氮氧化物薄膜的合成和加速测试
基本信息
- 批准号:0840045
- 负责人:
- 金额:$ 30万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2008
- 资助国家:美国
- 起止时间:2008-09-15 至 2013-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
NON-TECHNICAL DESCRIPTION:There is a critical need for new protective ceramic coatings that can operate in harsh environments with service temperatures in the 1000-1500oC range. These ceramic coatings must exhibit excellent heat resistance, chemical stability, fracture toughness and wear durability so they can be reliably be used in applications such high performance engines, shrouds, rotors, seals, slides, and bearings. A major problem is that conventional ceramic coatings crack and delaminate during thermal cycling in reactive gases at extreme temperatures. This project focuses on developing and testing Si-Al-O-N and Si-Zr-O-N thin film coatings and tailoring their properties to achieve high performance in terms of corrosion resistance, wear resistance, and fracture toughness. To efficiently test and evaluate the performance of the ceramic coatings in high temperature harsh environments, a microfabricated test platform is being developed, upon which the ceramic films are strategically deposited, to carry out accelerated testing under conditions that mimic those that are encountered during service. The project trains a graduate student and two undergraduate students in the areas of high temperature materials, thin film technology, and microfabrication, and K-12 students are being educated about high temperature materials science. Collaborations with industrial partners are being used to evaluate the effectiveness of the new coatings that are developed. TECHNICAL DETAILS:Ceramic thin film coatings that can withstand harsh environments with service temperatures of 1000-1500oC must exhibit excellent heat resistance, chemical stability, fracture toughness and wear durability. Conventional ceramic coatings crack and delaminate during service because of interdiffusion phenomena, chemical reactivity, and stress generation during thermal cycling in reactive gases at extreme temperatures. This project focuses on developing and testing SiAlON and SiZrON films that are precisely fabricated using magnetron sputtering and ECR-plasma-assisted e-beam evaporation. Nanoscale architectures are being investigated including gradient and multilayer compositions in order to achieve high performance in terms of corrosion resistance, wear resistance, and fracture toughness. To efficiently test and evaluate coating performance under thermal cycling conditions, a microfabricated MEMS test platform is being developed that consists of microheaters, temperature sensors, oxidation sensors, stress indicators, and microsliding fixtures. The project trains a graduate student and two undergraduate students in the areas of high temperature materials, thin film technology, and microfabrication, and K-12 students are being educated about high temperature materials science. Collaborations with industrial partners are being pursued to evaluate the effectiveness of the SiAlON and SiZrON coatings.
非技术描述:迫切需要能够在1000- 1500 oC工作温度范围内的恶劣环境中工作的新型保护性陶瓷涂层。 这些陶瓷涂层必须表现出优异的耐热性、化学稳定性、断裂韧性和耐磨性,因此它们可以可靠地用于高性能发动机、涡轮、转子、密封件、滑块和轴承等应用中。 一个主要的问题是传统的陶瓷涂层在极端温度下在反应性气体中的热循环期间破裂和分层。 该项目的重点是开发和测试Si-Al-O-N和Si-Zr-O-N薄膜涂层,并定制其性能,以实现耐腐蚀性,耐磨性和断裂韧性方面的高性能。 为了有效地测试和评估陶瓷涂层在高温恶劣环境中的性能,正在开发一种微型测试平台,在该平台上陶瓷膜被战略性地沉积,以在模拟使用期间遇到的条件下进行加速测试。 该项目培训了一名研究生和两名本科生,他们从事高温材料、薄膜技术和微加工领域的工作,K-12学生正在接受高温材料科学方面的教育。 与工业合作伙伴的合作正在用于评估开发的新涂层的有效性。 技术要求:能够承受1000- 1500 oC恶劣环境的陶瓷薄膜涂层必须具有优异的耐热性、化学稳定性、断裂韧性和耐磨性。 传统的陶瓷涂层在使用过程中由于相互扩散现象、化学反应性和在极端温度下在反应性气体中的热循环过程中产生的应力而开裂和分层。 该项目的重点是开发和测试使用磁控溅射和ECR等离子体辅助电子束蒸发精确制造的SiAlON和SiZrON薄膜。 正在研究纳米级结构,包括梯度和多层组合物,以在耐腐蚀性、耐磨性和断裂韧性方面实现高性能。 为了在热循环条件下有效地测试和评估涂层性能,正在开发一种微加工MEMS测试平台,该平台由微加热器、温度传感器、氧化传感器、应力指示器和微动夹具组成。 该项目培训了一名研究生和两名本科生,他们从事高温材料、薄膜技术和微加工领域的工作,K-12学生正在接受高温材料科学方面的教育。 正在寻求与工业合作伙伴的合作,以评估SiAlON和SiZrON涂层的有效性。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Robert Lad其他文献
Robert Lad的其他文献
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{{ truncateString('Robert Lad', 18)}}的其他基金
SusChEM: Ceramic Based Nanocomposite Films and Sensors for Life Cycle Monitoring of Materials in High Temperature Harsh Environments
SusChEM:陶瓷基纳米复合薄膜和传感器,用于高温恶劣环境下材料的生命周期监测
- 批准号:
1309983 - 财政年份:2013
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
MRI: Acquisition of a Multi-User X-ray Diffraction System for Advanced Materials Analysis
MRI:获取用于高级材料分析的多用户 X 射线衍射系统
- 批准号:
0521043 - 财政年份:2005
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
Acquisition of a Multi-User Thin Film Synthesis and Processing Facility
收购多用户薄膜合成和加工设施
- 批准号:
9413763 - 财政年份:1994
- 资助金额:
$ 30万 - 项目类别:
Standard Grant
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