Acquisition of a X-Ray Powder Diffractometer with High Temperature Attachment for Materials Research at the University of New Orleans

9626297 Tang该奖项为获得用于材料研究的带有高温附件的x射线粉末衍射仪提供了支持。该粉末衍射仪提供最先进的晶体结构测定，粒度分析，结晶度和无序度的测量，杂质相鉴定，固体溶解度和相图的测定。它具有全自动对准能力，并配备了先进的软件系统。它是高度通用的，可以作为一个0/0角度计或在垂直或水平模式，以满足任何现在和未来的需要。测角仪半径可以很容易地调整，使选择的最佳分辨率的应用。高温附件设计用于在高温（高达1400℃）下自动记录样品的晶体结构变化。它将安装在x射线衍射仪上，可以在真空、空气或惰性气体中工作。这台x射线衍射仪对新奥尔良大学许多研究项目的成功至关重要，包括对各种电子和磁性材料及其加工结构-性质关系的研究。这些项目包括研究可能发现巨磁阻（GMR）的绝缘体-金属或绝缘体-半导体纳米复合材料的磁输运特性；新型高密度磁光记录材料CuCr2Se4-x Asx的研究以及金属间自旋玻璃的光磁效应研究。此外，衍射仪将使我们能够更有效地开展高强度永磁体、超导体、自旋玻璃、重费米子、生物材料、聚合物-纳米颗粒复合材料、微孔固体、碳及相关材料、涂层及其摩擦学性能的研究活动。开发具有新颖和有用的磁性和电子性能的材料对国家的科技和经济发展具有战略意义。该衍射仪将提高新奥尔良大学教师的研究能力，也将提供给杜兰大学、路易斯安那州立大学、泽维尔大学和路易斯安那州立大学医学中心的研究人员。通过获得这些仪器，学生将有更多的机会参与材料研究活动，并获得使用最先进仪器的机会和培训。＊＊＊

9626297 Tang This award provides support for the acquisition of an x-ray powder diffractometer with a high temperature attachment for materials research. This powder diffractometer offers state- ofthe-art performance for crystal structure determination, particle size analysis, measurements of crystallinity and disorder, identification of impurity phases, and determinations of solid solubility and phase diagram. It has a fully automatic alignment capability and is equipped with an advanced software system. It is highly versatile and can function as a 0/0 goniometer or in vertical or horizontal mode to satisfy any present and future needs. the goniometer radii can be easily adjusted enabling the selection of the best resolution for application. The high temperature attachment is designed for automatic recording of crystal structure changes of a specimen at elevated temperatures (up to 1400 C). It will be mounted on the x- ray diffractometer and can operate in vacuum, air or inert gasses. This x-ray diffractometer is crucial to the success of many research projects at the University of New Orleans, including studies of various electronic and Magnetic materials and their processingstructure-property relationships. These projects include investigation on the magnetotransport properties of insulatormetal or insulator- semiconductor nanocomposites in which giant magnetoresistance (GMR) may be found; study of a group of new and very promising high density magneto-optical recording materials CuCr2Se4-x Asx; and study of photomagnetic effects in intermetallic spin glasses. In addition, diffractometer will enable us to conduct more effectively research activities in high strength permanent magnets, superconductors, spin glasses, heavy fermions, biomaterials, polymer-nanoparticle composites, microporous solids, carbon and related materials, coatings and their tribological properties. the development of materials with novel and useful magnetic and electronic pro perties is of strategic importance for the nation's technological and economic growth. %%% The diffractometer will enhance the research capabilities of the faculty at the University of New Orleans and will also be available to the researchers at Tulane University, Louisiana State University, Xavier University and Louisiana State University Medical Center. Through the acquisition of this instruments, students will have much greater opportunities to participate in materials research activities and be provided access and training on a state-of- the-art instrument. ***