Structure-Property-Relations in Compressed Inorganic Glasses

压缩无机玻璃的结构-性能关系

• 批准号: 230773965
• 负责人: Professor Dr.-Ing. Lothar Wondraczek
• 金额: --
• 依托单位: Lehrstuhl für Glaschemie II
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/230773965?language=en
• 关键词: Structure; Property; Relations; Compressed; Inorganic

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.

在玻璃的制造过程中，不仅考虑冷却动力学，而且考虑压力能够产生迄今为止无法实现的特性组合：仅包括压力参数允许玻璃材料的完整热力学描述，其中玻璃化转变可以在pTt空间中的任意路径上实现。这种压缩玻璃是本研究计划的对象。在第一个程序阶段，压力引起的性质修改，其结构和拓扑起源和潜在的新的属性组合进行了评估。第二个项目阶段的重点现在将集中在两个主题领域：宏观相关性的压力引起的属性修改和杠杆的控制和选择性调整的具体结构参数，并详细探索和评估的影响，压力的演变的拓扑异质性的玻璃。