U.S.-Germany Cooperative Research: Geometric, Metric and Homotopical Aspects of Low Diminensional Cell Complexes and Manifolds

拟议的研究调查高科技陶瓷的基础上结晶相在 Si-Al-Y-O-N系统 更好地了解它们的热力学性质可以导致 合成性能更好的低成本材料。 该项目结合了 普林斯顿大学量热小组的专业知识与材料和加工小组在 斯图加特。 斯图加特小组将合成和表征样品， 普林斯顿小组进行高温溶液量热法， 晶体的形成。 所得数据将纳入数据库并用于 以计算相平衡、结晶路径和晶体-化学相关性。

The proposed research investigates high-tech ceramics based on crystalline phases in the Si-Al-Y-O-N system. Better knowledge of their thermodynamic properties could lead to the synthesis of lower-cost materials with better properties. This project combines the expertise of the calorimetry group at Princeton with the materials and processi ng group in Stuttgart. The Stuttgart group will synthesize and characterize samples, while the Princeton group performs high-temperature solution calorimetry to obtain enthalpies of formation of the crystals. The data derived will be incorporated into databases and used to calculate phase equilibria, crystalline paths, and crystal-chemic al correlations.