Acquisition of integrated EBSD/EDS attachments and software for the field emission SEM at the University of Southern California

0929943普拉特该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助。 赠款将用于支持南加州大学地球科学系为最近购置的变压场发射源扫描电子显微镜购置一台电子背散射衍射照相机和一台能量色散光谱仪。 EBSD相机将允许确定地幔和地壳岩石中的晶体学优选取向模式（CPO），这些模式记录了由发生变形的物理条件（例如，流动应力、应变率、涡度和温度）。 EDS将允许同时表征样品中的相组成。 PI和学生的研究重点是确定折返岩石的构造历史，将立即受益于EBSD，因为对合成生产的超细晶粒纳米结构材料的材料研究具有新兴的商业应用，需要极高强度的材料。

0929943PlattThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Granted funds will support acquisition of an electron backscattered diffraction (EBSD) camera and an energy dispersive spectrometer (EDS) for a recently acquired variable pressure field emission source scanning electron microscope (SEM) in the Earth Sciences Department at the University of Southern California. The EBSD camera will permit determination of the crystallographic preferred orientation patterns (CPOs) in mantle and crustal rocks that record lattice dislocations caused by physical conditions under which deformation occurred (e.g., flow stress, strain-rate, vorticity, and temperature). The EDS will permit simultaneous characterization of phase composition in the sample. PI and student research with a focus on the determination of the tectonic history of exhumed rocks will immediately benefit from the EBSD as will materials research on synthetically produced ultrafine grained nanostructured materials that have emerging commercial applications where extremely high strength materials are required.