MRI: Acquisition of a State-of-Art X-Ray Diffraction System for Investigation of Nano/Micro/Bio-Materials and Devices

0923335成奥本大学技术总结：奥本大学和塔斯基吉大学的研究活动已经转向纳米/微结构材料和器件，这就需要能够表征薄膜和织构材料中的局部结构、取向和残余应力的仪器。这项提议的目标是获得一台最先进的X射线衍射仪，以满足两个研究所研究人员多样化和迫切的需求。具体地说，该系统将产生可聚焦到亚毫米光点的X射线束，以提供晶体结构和取向的空间分辨率。该系统配备了多线正比室面积探测器，能够检测强衍射和弱衍射特征。该系统软件具有二维衍射图分析、位相识别、图样索引、织构映射/极图分析、应变/粒度分析等功能。该系统还配备了高温阶段，能够在高达900°C的温度下进行X射线衍射实验。拟议的仪器将影响各种研究项目，总资助额近2500万美元，涉及80多名教职员工和250名学生/博士后。受新仪器影响的一些项目包括用于能量采集和存储设备等应用的微/纳米机电系统(MEMS/NEMS)设备的开发。该项目还将影响与开发传感器以改善食品和交通行业的公共安全以及清洁能源转换技术相关的活动，包括开发用于延长固体氧化物燃料电池(SOFC)寿命的涂层材料和改进的质子交换膜(PEM)燃料电池催化剂。此外，X射线衍射是本科生和研究生实验室培训的一部分，因此该仪器也将加强奥本大学和塔斯基吉大学的教育计划。莱曼摘要：奥本大学和塔斯基吉大学的研究活动已转向纳米/微结构材料和器件，这需要一种能够表征薄膜和织构材料中的局部结构、取向和残余应力的仪器。这项提议的目标是获得一台最先进的X射线衍射仪，以满足两个研究所研究人员多样化和迫切的需求。拟议中的工具将影响范围广泛的研究项目，总资金水平近2500万美元，涉及80多名教职员工和250名学生/博士后。受新仪器影响的一些项目包括开发用于能量采集和存储设备等应用的微/纳米机电系统(MEMS/NEMS)设备。该项目还将影响与开发传感器相关的活动，以改善食品(奥本大学检测和食品安全中心)和交通(美国联邦航空局客舱环境研究卓越中心)行业的公共安全。该仪器将支持清洁能源转换技术，包括开发延长固体氧化物燃料电池(SOFC)寿命的涂层材料和改进的质子交换膜(PEM)燃料电池催化剂。此外，X射线衍射是本科生和研究生实验室培训的一部分，因此该仪器还将加强奥本大学和塔斯基吉大学的教育项目。

0923335ChengAuburn U.Technical Summary: The research activities at Auburn University and Tuskegee University have shifted toward nano-/micro-structured materials and devices, which requires an instrument capable of characterizing the local structure, orientation and residual stress in thin films and textured materials. The objective of this proposal is to acquire a state-of-the-art X-ray diffracto-meter to fulfill the diverse and urgent needs of researchers at both institutions. In particular, the proposed system will generate an X-ray beam that can be focused into a sub-millimeter spot to provide spatial resolution of crystal structure and orientation. The system is equipped with a multiwire proportional chamber area detector capability of detecting both strong and weak diffraction features. The system software is capable of analyzing the 2-D diffraction patterns, phase identification, pattern indexing, texture mapping/pole figure analysis and strain/particle size analysis. The system is also equipped with a high temperature stage capable to allow XRD experiments to be performed at temperatures up to 900°C. The proposed instrument will impact a wide variety of research projects with a total funding level of nearly $25M and involving more than 80 faculty members and 250 stu-dents/postdocs. Some examples of projects impacted by the new instrument include the development of micro/nano-electromechanical system (MEMS/NEMS) devices for applica-tions such as energy harvesting and memory devices. The project will also impact activities related to the development of sensors for improving public safety in both the food and transportation industries as well as clean energy conversion technology, including the development of coating materials for extending the life of solid oxide fuel cells (SOFC) and improved catalysts for proton exchange membrane (PEM) fuel cells. In addition, x-ray diffraction is part of the laboratory training at the undergraduate and graduate levels, so the instrument will also enhance the educational programs at Auburn and Tuskegee Universities.Layman Summary: The research activities at Auburn University and Tuskegee University have shifted toward nano-/micro-structured materials and devices, which requires an instrument capable of characterizing the local structure, orientation and residual stress in thin films and textured materials. The objective of this proposal is to acquire a state-of-the-art X-ray diffracto-meter to fulfill the diverse and urgent needs of researchers at both institutions. The proposed instrument will impact a wide variety of research projects with a total funding level of nearly $25M and involving more than 80 faculty members and 250 students/postdocs. Some examples of projects impacted by the new instrument include the development of micro/nano-electromechanical system (MEMS/NEMS) devices for applications such as energy harvesting and memory devices. The project will also impact activities related to the development of sensors for improving public safety in both the food (Auburn University Detection and Food Safety Center) and transportation (FAA Center of Excellence in Cabin Environment Research) industries. The instrument will support clean energy conversion technology, including the development of coating materials for extending the life of solid oxide fuel cells (SOFC) and improved catalysts for proton exchange membrane (PEM) fuel cells. In addition, x-ray diffraction is part of the laboratory training at the undergraduate and graduate levels, so the instrument will also enhance the educational programs at Auburn and Tuskegee Universities.