Acquisition of a Field Emission Scanning Electron Microscope for Nanophase Materials Characterization

小行星9704288 该项目购买具有能量色散光元素X射线分析（EDX）和电子背散射衍射（EBSD）功能的场发射扫描电子显微镜，将使重要的材料研究工作得以开展。 SEM将被安置在密苏里州-罗拉大学的材料研究研究生中心。 该中心被指定为主要设备的校园资源。所提出的仪器将用于探测导电金属氧化物、金属/半导体纳米复合材料、纳米相弛豫铁电体和压电陶瓷、纳米结构形状记忆合金、环境兼容聚合物涂层、玻璃纤维增强复合材料的电沉积组成和缺陷化学超晶格的纳米结构、组成、晶体取向和相组成，玻璃的成核和结晶，以及通过等离子体增强化学气相沉积沉积的磁性膜。 新仪器经过优化，可在低电子束电压和电流下工作，因此非常适合研究聚合物等材料，这些材料在传统的基于双折射的扫描电子显微镜中会受到损坏。 该仪器对于纳米级外延结构的工作、电子陶瓷材料的工作、用于治疗肝癌的玻璃球的工作和在玻璃中封装核废料的工作、以及用于替代铝上的Chrome的腐蚀保护材料的工作和冶金中的纳米材料的工作是必不可少的。 ***

9704288 Switzer This project to purchase a field-emission scanning electron microscope with energy dispersive light-element x-ray analysis (EDX) and electron backscatter diffraction (EBSD) capabilities will enable important materials research work to be carried out. The SEM will be housed in the Graduate Center for Materials Research at the University of Missouri- Rolla. The Center is designated as a campus resource for major equipment. The proposed instrument will be used to probe the nanostructure, composition, crystallographic orientation, and phase composition of electrodeposited compositional and defect-chemistry superlattices of conducting metal oxides, metal/semiconductor nanocomposites, nanophase relaxor ferroelectrics and piezoelectric ceramics, nanostructured shape memory alloys, environmentally compliant polymer coatings, glass fiber reinforced composites, nucleation and crystallation of glass, and magnetic films deposited by plasma-enhanced chemical vapor deposition. The new instrument is optimized to operate at low beam voltages and currents, and is therefore ideal for studying materials like polymers which are damaged in conventional filament-based scanning electron microscopes. %%% The instrumentation is essential for work on nanoscale epitaxial architectures, work on electroceramic materials, work on glass sphere's for the treatment of liver cancer and encapsulation of nuclear waste in glass, and work on a corrosion protection material to be a replacement for chrome on aluminum and in work on nanomaterials in metallurgy. ***