MRI: Development of a State-of-the-Art Laser Micro-machining and Surface Engineering System

MRI：开发最先进的激光微加工和表面工程系统

• 批准号: 0923000
• 负责人: Yip-Wah Chung
• 金额: $ 42万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0923000&HistoricalAwards=false
• 关键词: MRI; Development; State; Art; Laser

The objective of this instrument development proposal is to build an integrated state-of-the-art laser micro-machining and surface engineering system (LSES). This instrument integrates a pico-second laser with the technology of numerical-controlled precision machining and high-speed and high-sensitivity instrumentation. The system will enable (i) rapid physical and chemical texturing of micron-sized features onto arbitrary three-dimensional object surfaces with sub-nanometer precision, (ii) direct visual and spectroscopic observation of the workpiece surface and the laser plume, (iii) temperature and strain measurements of the workpiece at high temporal and spatial resolution, and (iv) post-texturing surface measurement.Successful development of the proposed LSES will open new opportunities for fundamental studies in understanding how surface (physical and chemical) texture of different length scales may affect friction, wear, lubrication and energy dissipation under different contact conditions. More importantly, surface texture has a major role in reducing energy consumption. Various initiatives are proposed to make this instrument available to other researchers, to encourage participation of woman and under-represented minority students, and to enhance education, training and technology transfer.

该仪器开发提案的目标是建立一个集成的最先进的激光微加工和表面工程系统（LSES）。该仪器将皮秒激光器与数控精密加工技术和高速高灵敏度仪器技术相结合。 该系统将能够（i）以亚纳米精度将微米尺寸的特征快速物理和化学纹理化到任意三维物体表面上，（ii）直接视觉和光谱观察工件表面和激光羽流，（iii）以高时间和空间分辨率测量工件的温度和应变，以及（iv）纹理化后的表面测量。拟议的LSES的成功开发将为理解表面如何不同长度尺度的（物理和化学）织构会影响不同接触条件下的摩擦、磨损、润滑和能量耗散。更重要的是，表面纹理在降低能源消耗方面具有重要作用。提出了各种倡议，以便向其他研究人员提供这一工具，鼓励妇女和代表性不足的少数民族学生参与，并加强教育、培训和技术转让。