MRI: Acquisition of Analytical TEM for Multi-User Materials Research Environment

0922851Van AkenMissouri S&amp；T技术摘要获得一台分析透射电子显微镜（TEM）将补充和扩展密苏里S&amp；T的先进材料表征实验室（AMCL）。提议的TEM将配备肖特基场发射枪和x射线能量色散光谱仪（XEDS），能够在传统的TEM模式和扫描传输（STEM）模式下工作。TEM在高分辨率成像、原子序数敏感（z对比）成像、纳米束电子衍射和XEDS线扫描/测绘方面的增强能力将为密苏里大学提供最先进的材料表征。密苏里理工大学的270名终身教职员工中，有近四分之一从事与材料相关的研究，他们分布在校园21个学术院系中的13个。其他将从该设备的收购中受益的机构包括密苏里研究联盟和密苏里纳米联盟，这两个组织致力于促进密苏里州的纳米科学合作研究。TEM将用于若干项目，包括：1)第三代先进高强度钢的结构/化学/性能关系，2)外延金属氧化物薄膜和超晶格的畴结构和界面研究，3)搅拌摩擦加工铝合金的结构和成分不均匀性，4)质子交换膜燃料电池催化剂分散纳米线阵列的界面结构和浓度梯度，5)超高温陶瓷晶界上的杂质偏析和缺陷相互作用；6)高温超导材料晶界上的结构、缺陷和掺杂性质；7)固体氧化物燃料电池中应用的玻璃/陶瓷界面化学。拟议中的工具将由密苏里州资产管理公司（AMCL）管理。非技术分析用透射电子显微镜是研究纳米结构新材料的重要工具。这台新仪器将用于开发轻质钢、发电新材料、新型超导磁体和高温隔热板。其他将受益于该设备的机构包括密苏里研究联盟和密苏里纳米联盟，这两个组织致力于促进密苏里州纳米科学研究和设备开发的合作。该仪器将由密苏里科技大学（Missouri S&amp；T）的先进材料表征实验室（AMCL）管理。提议的设备将立即用于材料表征和评估领域的几个本科和研究生水平的课程，其中200名材料科学与工程专业的学生将接触到nsf资助项目的前沿研究。此外，该仪器将加强密苏里理工大学本科和研究生水平的招聘工作，通过本科研究经验机会（OURE）等项目，以及由大学预科项目办公室协调的许多暑期项目，如Jackling工程入门和材料营。去年校园里有1300多名K-12学生，大多数人参观了AMCL。

0922851Van AkenMissouri S&TTechnical AbstractAcquisition of an analytical transmission electron microscope (TEM) will complement and expand the Advanced Materials Characterization Lab (AMCL) at Missouri S&T. The proposed TEM will be equipped with a Schottky field emission gun and an X-ray energy dispersive spectrometer (XEDS), capable of operating in both conventional TEM mode and scanning transmission (STEM) mode. The enhanced capabilities of the TEM in the area of high resolution imaging, atomic number sensitive (Z-contrast) imaging, nano-beam electron diffraction, and XEDS line-scan/mapping will provide state-of-the-art materials characterization at Missouri S&T. Nearly a quarter of the 270 tenure track faculty members at Missouri S&T are engaged in materials-related research, cutting across 13 of the 21 academic departments on campus. Other institutions that will benefit from the acquisition of this equipment include the Research Alliance of Missouri and the Missouri Nanoalliance, organizations dedicated to facilitating collaborative nanoscience research in the State of Missouri. The TEM will be utilized in a number of projects, including: 1) structure/ chemistry/ property relations of 3rd generation advanced high strength steels, 2) domain structures and interface studies of epitaxial metal oxides films and superlattices, 3) structural and compositional inhomogeneities in friction stir processed aluminum alloys, 4) interface structure and concentration gradients in catalyst-dispersed nanowire arrays for proton exchange membrane fuel cells, 5) impurity segregation and defect interactions at grain boundaries in ultra-high temperature ceramics, 6) structure, defects and doping properties at grain boundaries of high temperature superconducting materials, and 7) glass/ceramic interfacial chemistry for the application in solid oxide fuel cells. The proposed instrument will be managed by the AMCL at Missouri S&T. Non-technicalAnalytical transmission electron microscopes are an essential tool in the development of new materials with nano-scale structures. This new instrument will be used to develop lightweight steel, new materials to generate electricity, new superconducting magnets, and high temperature heat shields. Other institutions that will benefit from the acquisition of this equipment include the Research Alliance of Missouri and the Missouri Nanoalliance, organizations dedicated to facilitating collaborative nanoscience research and facility development in the State of Missouri. The proposed instrument will be managed by the Advanced Materials Characterization Laboratory (AMCL) at the Missouri University of Science and Technology (Missouri S&T). The proposed equipment will be immediately utilized in several undergraduate and graduate level classes in the areas of materials characterization and evaluation, where 200 Materials Science and Engineering students are exposed to cutting edge research in NSF-funded projects. In addition, the instrument will enhance recruitment efforts at the undergraduate and graduate levels at Missouri S&T, through programs such as the Opportunities for Undergraduate Research Experience (OURE), and the many summer programs coordinated by the Office of Pre-College Programs such as the Jackling Introduction to Engineering and the Materials Camp. Last year over 1,300 K-12 students were on campus, and most toured through the AMCL.