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

0922938 ErnstCase Western“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“技术摘要我们要求资金的纳米磨，一种新型的超低能量集中离子束系统，为透射电子显微镜制备最高质量的标本。该仪器旨在对通过常规技术或聚焦离子束（FIB）系统预先制备的样品进行最终抛光，能够完全去除非晶受损层，这些层通常会降低高分辨率TEM图像，并经常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中心之一。每年的学术用户总数总是超过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着重要作用，并为中学生提供示范。其中最强大和最昂贵的设备是两台最先进的透射电子显微镜（总成本：360万美元）。然而，我们目前还不能真正利用这些仪器的上级能力，因为我们的样品制备设备还不够。拟议中的纳米磨将缩小这一关键差距，并使各种材料研究项目取得重大进展，包括一项涉及CWRU 4名教师和10多名研究生和博士后研究人员的重大研究计划，旨在了解和开发新的表面合金化方法与间隙溶质（例如？巨大的过饱和？）非技术摘要我们申请资助一种纳米研磨机，这是一种用于制备透射电子显微镜用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中心之一。每年的学术用户总数总是超过100，包括本科生，研究生，博士后研究人员和教师。该中心还在CWRU材料科学课程中发挥着重要作用，并为中学生提供示范。其中最强大和最昂贵的设备是两台最先进的透射电子显微镜（总成本：360万美元）。然而，我们目前还不能真正利用这些仪器的上级能力，因为我们的样品制备设备还不够。拟议中的Nanomill将缩小这一关键差距，并使各种材料研究项目取得重大进展。

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.