RUI: Acquisition of X-Ray Powder Diffraction Instrumentation with Heating Stage to Support Solution Calorimetric Research and Undergraduate Research on Mineral Thermal Expansion

1028953Hovis该补助金支持购买带有温控样品池的功率X射线衍射仪，以允许拉斐特学院对重要岩石形成矿物的相变和晶体结构表征进行动力学研究。 XRD将补充PI对硅酸盐固溶体（包括硅酸盐、菱晶石和菱晶石）和沸石的热力学行为的量热研究。 实验热力学数据为地壳深部相态行为的模型提供了信息，XRD研究将阐明控制地球重要矿物固溶体热膨胀的晶体学和晶体化学原理。 PI在这个本科机构积极从事学生体验式学习与国家的最先进的技术在晶体学和热力学及其应用于科学研究问题。 ***

1028953HovisThis grant supports acquisition of a power x-ray diffractometer with temperature controlled sample cell to permit kinetic studies of phase changes and crystallographic structure characterization of important rock forming minerals at Lafayette College. The XRD would complement the PIs calorimetric investigations of the thermodynamic behavior of solid solutions of silicates including mics, feldspars and feldspathoids and zeolites. Experimental thermodynamic data informs models of behavior of phases in the deep crust and XRD studies will elucidate the crystallographic and crystal-chemical principles that govern thermal expansion of Earth important mineral solid solutions. The PI at this undergraduate institution actively engages students in experiential learning with state-of-the-art techniques in crystallography and thermodynamics and their application to scientific research problems. ***