MRI: Acquisition of a Raman Imaging - Scanning Electron Microscope / Focused Ion Beam Instrument for Correlative Analysis of Materials Across Multiple Length Scales

MRI：获取拉曼成像 - 扫描电子显微镜/聚焦离子束仪器，用于跨多个长度尺度的材料相关分析

• 批准号: 1828454
• 负责人: David Diercks
• 金额: $ 99.97万
• 依托单位: Colorado School of Mines
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-10-01 至 2020-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1828454&HistoricalAwards=false
• 关键词: MRI; Acquisition; Raman; Imaging; Scanning

This Major Research Instrumentation project supports acquisition of a unique instrument for studying a variety of materials across multiple length scales - from one millimeter down to near the atomic scale. In particular, this instrument probes information about the chemical bonding and mechanical strain in materials while also evaluating the shape and composition of these materials at the same location in three dimensions. The instrument directly supports areas of scientific and national interest such as mineral resource extraction, energy generation and storage, and biomaterial development. Broader benefits of this acquisition include: (1) providing a managed, easily accessible correlative analysis capability to a large number of researchers in diverse scientific disciplines, (2) advancing technical training of and access to a state-of-the-art instrument for undergraduate and graduate students at Colorado School of Mines and other institutions, and (3) attracting K-12 students to science and engineering fields through hands-on activities.The acquisition of a Raman imaging - scanning electron microscope / focused ion beam instrument by the Colorado School of Mines provides an open facility for the correlative analysis of advanced functional inorganic, organic, biological, and geological samples across length scales that meets the distinct needs of academic, national laboratory, and industrial research projects. This is the first such instrument in the world openly available to academic researchers. Its usage spans multiple disciplines and many types of materials. Raman spectroscopic imaging enables bonding, phase, and strain identification down to a few hundred nanometers. Scanning electron microscopy enables surface morphology imaging and compositional analysis at the nanometer resolution. The focused ion beam presents the opportunity to access three-dimensional compositional and structural information, as well as preparing samples for further analysis using other techniques such as transmission electron microscopy and atom probe tomography. The whole instrument facilitates unprecedented access to three-dimensional phase, bonding, structure, morphology, and compositional relationship analysis spanning many orders of magnitude in length.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个主要的研究仪器项目支持购买一种独特的仪器，用于研究多种长度尺度的各种材料-从一毫米到接近原子尺度。特别是，该仪器探测有关材料中的化学键和机械应变的信息，同时还在同一位置以三维方式评估这些材料的形状和成分。该仪器直接支持科学和国家利益领域，如矿物资源开采、能源生产和储存以及生物材料开发。这项收购的更广泛的好处包括：(1)为不同科学学科的大量研究人员提供管理的、容易获得的相关分析能力；(2)促进科罗拉多矿业学院和其他机构的本科生和研究生的技术培训和使用最先进的仪器；以及(3)通过动手活动吸引K-12学生进入科学和工程领域。科罗拉多矿业学院收购了拉曼成像扫描电子显微镜/聚焦离子束仪器，为高级功能无机、有机、生物、以及各种长度尺度的地质样品，以满足学术、国家实验室和工业研究项目的不同需求。这是世界上第一个向学术研究人员开放的此类仪器。它的使用跨越了多个学科和许多类型的材料。拉曼光谱成像使粘合、物相和应变识别精确到几百纳米。扫描电子显微镜可以在纳米分辨率下进行表面形态成像和成分分析。聚焦的离子束提供了获取三维成分和结构信息的机会，以及准备样品以使用其他技术进行进一步分析，如透射式电子显微镜和原子探针断层扫描。整个仪器提供了前所未有的访问三维相、结合、结构、形态和组成关系分析的途径，跨越了许多数量级的长度。这一奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。