MRI: Acquisition of a Nanomill for Preparing Highest-Quality TEM Specimens

MRI：购买纳米磨机以制备最高质量的 TEM 样本

• 批准号: 0922938
• 负责人: Frank Ernst
• 金额: $ 15.8万
• 依托单位: Case Western Reserve 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: 2009-10-01 至 2012-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0922938&HistoricalAwards=false
• 关键词: MRI; Acquisition; Nanomill; Preparing; Highest

0922938ErnstCase Western"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."Technical AbstractWe request funds for a Nanomill, a novel ultra-low-energy concentrated ion beam system for preparing highest-quality specimens for transmission electron microscopy. Designed to perform the final polishing step on specimens that have been pre-prepared by conventional techniques or by a focused ion beam (FIB) system, this instrument is capable of entirely removing the amorphous damaged layers that usually degrade high- resolution TEM images and often obscure important details of the true specimen structure. The instrument is for the Swagelok Center for Surface Analysis of Materials at Case Western Reserve University, one of the best centers of its kind in the USA. The total number of academic users per year always exceeds 100 and includes undergraduate students, graduate students, post- doctoral researchers, and faculty. The Center also plays an important role in the CWRU materials science curriculum as well as for demonstrations to middle school students. Among the most powerful and expensive pieces of equipment are two state-of-the-art transmission electron microscopes (total cost: $3.6 Million). However, we can presently not really exploit the superior abilities of these instruments because our equipment for specimen preparation is not adequate. The proposed Nanomill will close this critical gap and enable major advances in a variety of materials research projects, including a major research program involving 4 faculty and more than 10 graduate students and post-doctoral researchers at CWRU, aiming to understand and develop novel approaches to surface alloying with interstitial solutes (e.g. ?colossal supersaturation?) that provide alloy surfaces with exceptional hardness and corrosion resistance.Non-Technical AbstractWe request funds for a Nanomill, a novel instrument for preparing highest-quality specimens for transmission electron microscopy. The instrument is for the Swagelok Center for Surface Analysis of Materials at Case Western Reserve University, one of the best centers of its kind in the USA. The total number of academic users per year always exceeds 100 and includes undergraduate students, graduate students, post-doctoral researchers, and faculty. The Center also plays an important role in the CWRU materials science curriculum as well as for demonstrations to middle school students. Among the most powerful and expensive pieces of equipment are two state-of-the-art transmission electron microscopes (total cost: $3.6 Million). However, we can presently not really exploit the superior abilities of these instruments because our equipment for specimen preparation is not adequate. The proposed Nanomill will close this critical gap and enable major advances in a variety of materials research projects.

0922938ErnstCase WESTERN“该奖项是根据2009年美国复苏和再投资法案(公共法律111-5)资助的。”技术摘要我们为纳米磨机申请资金，这是一种新型的超低能浓缩离子束系统，用于制备用于透射电子显微镜的最高质量的样品。该仪器旨在对通过传统技术或聚焦离子束(FIB)系统预先准备的样品执行最终抛光步骤，能够完全去除非晶质损伤层，这些损伤层通常会降低高分辨率的透射电子显微镜图像，并且往往会掩盖真实样品结构的重要细节。该仪器是为凯斯西储大学的世伟洛克材料表面分析中心提供的，该中心是美国同类中心中最好的之一。每年学术用户总数始终超过100人，包括本科生、研究生、博士后研究人员和教职员工。该中心还在CWRU材料科学课程中发挥重要作用，并向中学生演示。其中最强大和最昂贵的设备是两台最先进的传输电子显微镜(总成本：360万美元)。然而，我们目前还不能真正发挥这些仪器的优越能力，因为我们的样品制备设备还不够充分。拟议的Nanomill将填补这一关键差距，并使各种材料研究项目取得重大进展，包括CWRU的4名教师和10多名研究生和博士后研究人员参与的一项重大研究计划，旨在了解和开发与间隙溶质表面合金化(例如，巨大过饱和？)的新方法。为合金表面提供非凡的硬度和耐腐蚀性。非技术摘要我们为纳米研磨机申请资金，这是一种用于制备用于透射电子显微镜的高质量样品的新型仪器。该仪器是为凯斯西储大学的世伟洛克材料表面分析中心提供的，该中心是美国同类中心中最好的之一。每年学术用户总数始终超过100人，包括本科生、研究生、博士后研究人员和教职员工。该中心还在CWRU材料科学课程中发挥重要作用，并向中学生演示。其中最强大和最昂贵的设备是两台最先进的传输电子显微镜(总成本：360万美元)。然而，我们目前还不能真正发挥这些仪器的优越能力，因为我们的样品制备设备还不够充分。拟议中的Nanomill将填补这一关键差距，并使各种材料研究项目取得重大进展。