Acquistion of a state-of-the-art Electron Backscatter Diffraction facility

购置最先进的电子背散射衍射设施

• 批准号: 0132207
• 负责人: Michael Cheadle
• 金额: $ 5.86万
• 依托单位: University of Wyoming
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0132207&HistoricalAwards=false
• 关键词: Acquistion; state; art; Electron; Backscatter

0132207CheadleThis grant provides partial support for the acquisition of a detector and software to add electron backscattering diffraction (EBSD) capabilities to an existing modern scanning electron microscope (SEM) in the Department of Geology and Geophysics at the University of Wyoming. EBSD systems are a relatively new technology that allow for the rapid characterization of crystallographic preferred orientations (CPO) of thin sections materials at sub-micron resolutions. The technology makes it possible to statistically characterize paleodeformation mechanisms in rocks with very small grain sizes that are impossible or very difficult to analyze using alternative techniques combining traditional optical microscopy and x-ray diffraction. Detailed crystallographic information can also be very useful for studies of mineral surface processes and for characterizing the structure of organic molecules. Research at Wyoming that will immediately benefit from this system includes studies of the deformation processes responsible for creating ultramafic mylonites collected from oceanic fracture zones, studies of mantle peridotites to elucidate the factors responsible for igneous cumulates and to aid in the interpretation of magma chamber dynamics, and studies of the interaction of pharmaceuticals with malaria pigment to aid in the design of more effective antimaliaral drugs.***

0132207Cheadle该赠款为怀俄明州大学地质与地球物理系购买探测器和软件提供部分支持，以将电子背散射衍射（EBSD）功能添加到现有的现代扫描电子显微镜（SEM）中。 EBSD系统是一种相对较新的技术，可以在亚微米分辨率下快速表征薄切片材料的晶体择优取向（CPO）。 该技术使得统计表征岩石中的古变形机制成为可能，这些岩石具有非常小的粒度，使用传统的光学显微镜和X射线衍射相结合的替代技术是不可能或非常难以分析的。 详细的晶体学信息对于矿物表面过程的研究和表征有机分子的结构也非常有用。 怀俄明州的研究将立即受益于这一系统，包括研究从海洋断裂带收集的超镁铁质糜棱岩的变形过程，研究地幔橄榄岩，以阐明火成岩累积的因素，并帮助解释岩浆房动力学，以及研究药物与疟疾色素的相互作用，以帮助设计更有效的抗疟疾药物。