Design & Manufacturing Large Area, Thick cBN Films for High Power Energy Device Applications

设计

• 批准号: 0706147
• 负责人: Peter Feng
• 金额: $ 20.8万
• 依托单位: University of Puerto Rico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0706147&HistoricalAwards=false
• 关键词: Design; & Manufacturing; Large; Area

NON-TECHNICAL DESCRIPTION: A pair of researchers at the University of Puerto Rico will develop a new technique to enable the fabrication of cubic boron nitride (cBN) films over large areas. Due to its extraordinary resistance to wear and oxidation, cBN is targeted to be employed as a protective layer in engines, turbines, and other devices exposed to harsh conditions. The use of cBN protective coatings is expected to improve the lifetime and reliability of automobiles, ships, and aircraft. This project will contribute to the specialized training of graduate students in cutting-edge research fields and to advancing the programmatic efforts of the nation in the area of materials science and manufacturing. This work is co-supported by the Ceramics Program in the Division of Materials Research and the Materials Processing and Manufacturing Program in the Engineering Directorate.TECHNICAL DETAILS: Together a laser plasma physicist and a chemical physicist will take an integrative experimental and theoretical approach to develop a new technique for the fabrication of cBN protective coatings over large areas. They will employ a super-short-pulse laser produced plasma (SSP LPP) deposition technique combined with a novel line-focusing technique to meet this objective. The main advantages of SSP-LPP technique are to avoid thermal film ablation and reduce film stress. These features combined with their novel line-focusing technique are expected to lead to the synthesis of large-area, thick, strongly-adhered cBN films on a variety of substrates of technological importance. The fundamental science emphasis of this project is on the quantification, control, and mechanistic understanding of the plasma deposition parameters that determine the nanostructure of the cBN films. This project contributes to achieving a comprehensive understanding of the synthesis process for thick cBN films, as well as of their thermomechanical, electrical and optical properties, thus becoming technology-enabling in the area of advanced materials targeted at enhancing the long-term performance and reliability of devices submitted to harsh conditions, such as turbines and motors. Graduate students from underrepresented groups who participate in this project will obtain first-hand experience in nanotechnology issues, tools and trends, and learn the physics and chemistry of advanced ceramics, thus broadening their participation in science and technology.

非技术描述：波多黎各大学的一对研究人员将开发一种新技术，以使大型地区的立方硼化硼（CBN）膜制造。 由于其对磨损和氧化的极大耐药性，CBN的目标是在发动机，涡轮机和其他暴露于恶劣条件的设备中用作保护层。 CBN防护涂料的使用有望提高汽车，船只和飞机的寿命和可靠性。该项目将有助于对尖端研究领域的研究生的专业培训，并在材料科学和制造业领域促进国家的计划努力。 这项工作由材料研究部以及工程局的材料处理和制造计划的陶瓷计划共同支持。技术详细信息：共同详细介绍了激光等离子体物理学家，化学物理学家将采用一种综合实验和理论方法，以开发一种用于制造CBN保护涂料的新技术。他们将采用超短脉冲激光产生的等离子体（SSP LPP）沉积技术，并结合了一种新型的关注线条技术来满足这一目标。 SSP-LPP技术的主要优点是避免热膜消融并减轻膜应力。这些特征与新颖的关注线技术相结合有望导致在各种技术重要性基质上合成大区域，厚，强烈的CBN膜。 该项目的基本科学重点是对确定CBN膜纳米结构的血浆沉积参数的量化，控制和机械理解。该项目有助于实现对厚CBN膜的合成过程的全面理解，及其热力学，电气和光学特性，从而在用于增强涡轮和电动机等苛刻条件的设备的长期性能和可靠性的高级材料领域中得到了技术的实现。参与该项目的人数不足的团体的研究生将获得纳米技术问题，工具和趋势的第一手经验，并学习高级陶瓷的物理和化学，从而扩大了他们对科学和技术的参与。