Acquisition of a powder X-ray diffractometer for geological, chemical and materials research

基金将支持为地球科学系购置一台x射线粉末衍射仪？s的x射线散射设施（InXS）在石溪。该仪器将支持来自地球科学、化学、海洋科学和材料科学系的研究人员。InXS的用户群包括14个研究小组。Rigaku Ultima III仪器要求具有交叉光束光学（CBO）技术，提供Bragg-Brentano （B-B）和平行光束（PB）光学之间的快速用户切换，允许平板或圆柱形样品分析。还将购买一个Rigaku z平移炉，以便进行热膨胀测量。拟议的研究分为几个大类；地球纳米材料，元素分析将有助于阐明污染物回收（FeS，铁水合物等）和生物化学过程（骨和壳的生长）。材料研究，将研究非晶碳酸钙（ACC）的形成和解离动力学，以加强生物材料的设计和纳米钙钛矿材料的合成将在不同的温度下确定。矿物物理，高P和T与晶体结构，流变学，强度和弹性的关系将得到阐明。对低温地球化学、砷去除策略进行评价，以合成玄武岩为代表研究海洋地球化学过程，并对早期有机质成岩过程中的矿物相互作用进行评价。在晶体材料的研究中，将使用新的仪器进行进一步的分析。所要求的仪器将代表一个强大的资源，为研究生提供实际分析的机会。所要求的仪器的快速配置能力将允许独特和先进的教学机会。该乐器将被纳入几门课程。InXS设施成员通过研讨会、REU、IGERT、教师研讨会和其他外展工具提供服务

0744230PariseFunds will support acquiring an X-Ray powder diffractometer for the Department of Geoscience?s X-ray Scattering Facility (InXS) at Stony Brook. The instrument will support investigators from the Geosciences, Chemistry, Marine Sciences and Material Science departments. The InXS user base comprises 14 research groups. A Rigaku Ultima III instrument is requested with Cross Beam Optic (CBO) technology providing fast user switching between Bragg-Brentano (B-B) and parallel beam (PB) optics, allowing flat plate or cylindrical sample analysis. A Rigaku z-translation furnace will also be purchased, allowing thermal expansion measurements. Proposed studies fall into several broad categories; Geo-nano-materials, elemental analysis will help elucidate contaminant recycling (FeS, Ferrihydrite, etc) and biogechemical processes (bone and shell growth). Materials research, amorphous calcium carbonate (ACC) formation and dissociation dynamics will be studied to enhance biomaterials design and nano-perovskite material synthesis will be determined under different temperature regimes. Mineral physics, high P and T relation to crystalline structure, rheology, strength and elasticity will be elucidated. Low temperature geochemistry, arsenic removal strategies will be evaluated, synthetic basalts will be used as a proxy to study maritan geochemical processes, and mineral interactions during early organic matter diagenesis will be assessed. Additional analyses will be made using the new instrumentation in crystalline materials research. The requested instrument will represent a robust resource offering graduate students access to hands on analyses. The rapid configuration capabilities of the requested instrument will allow unique and advanced teaching opportunities. The instrument will be incorporated into several courses. InXS facility members provide service through seminars, REU, IGERT, teacher workshops, and other outreach vehicles.***