Structure-Property-Relations in Compressed Inorganic Glasses

在玻璃的制造过程中，不仅要考虑冷却动力学，还要考虑压力，从而产生迄今为止无法获得的特性组合：只有包括压力参数才能对玻璃材料进行完整的热力学描述，其中玻璃化转变可以在ptt空间的任意路径上实现。这种压缩玻璃是目前研究计划的对象。在第一个程序阶段，评估了压力诱导的属性修改，它们的结构和拓扑起源以及新属性组合的潜力。第二个项目阶段的重点现在将集中在两个主题领域：压力诱导的属性修改的宏观相关性和控制和选择性调整特定结构参数的杠杆，以及压力对玻璃拓扑非均质演变的影响的详细探索和评估。

During fabrication of a glass, considering not only cooling kinetics but also pressure enables generation of as-to-yet inaccessible combinations of properties: only inclusion of the pressure parameter allows a complete thermodynamic description of glassy materials where the glass transition can be achieved on arbitrary paths in the pTt-space. Such compressed glasses are the objects of the present research program. In the first program phase, pressure-induced property modifications, their structural and topological origin and potentials for novel property combinations were evaluated. Focus of the second project phase will now be on two topical areas: the macroscopic relevance of pressure-induced property modifications and levers for controlled and selective tuning of specific structural parameters, and the detailed exploration and evaluation of the effect of pressure on the evolution of topological heterogeneity in glasses.