Coordination Funds

协调基金

• 批准号: 221712051
• 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: Priority Programmes
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/221712051?language=en
• 关键词: Coordination; Funds

Accepting brittleness and benefiting from their optical properties and universal processability, glassy materials have found their traditional applications in environments with low levels of tensile stress. It was recognized, however, that intrinsically, glasses represent the strongest man-made material which can be produced on large-scale. Only for low resistance to surface damage, the uniquely high levels of intrinsic strength can presently not be made use of. In a broader context, covering all classes of disordered materials (distinguished by the nature of chemical bonds), brittleness, stiffness, elastic limit and the practical absence of ductility originate from their molecular, mid-range and surface topology. In inorganic as well as metallic glasses and in contrast to any other solid material, mechanical properties must be considered in a twofold way: on the basis of structural length scales and dynamics. Identification of determinant topological and density constraints and their engineering towards ultrahigh toughness is now seen as the major future breakthrough of the field. As to yet disregarded synergy arises from the joint treatment of both classes of glass: from a topo-mechanical view, both materials appear to follow the same constitutive principles of coordination, packing density, free volume, structural dynamics, structural heterogeneity and extreme mid- to long-range homogeneity. SPP 1594 has the objective to condense existing experimental and theoretical competencies within Germany to enable a conceptual breakthrough in the understanding and design of the mechanical properties of glasses. For the first time, inorganic and metallic glasses will be considered in a joint context. An anticipated number of 12-15 highly cross-disciplinary research projects will be involved in SPP 1594. Key to topical success, international visibly and long-lasting impact is the effective coordination of this effort for which a number of central activities are planned, including the organization of national and international workshops and conferences, the promotion of young researchers, equal opportunity actions, setting-up a mentoring program and ensuring high-impact outreach and networking.

玻璃材料接受脆性，受益于其光学特性和通用可加工性，在低拉应力水平的环境中找到了它们的传统应用。然而，人们认识到，从本质上讲，玻璃是可以大规模生产的最坚固的人造材料。只有对表面损伤的低阻力，独特的高水平的固有强度目前不能使用。在更广泛的背景下，涵盖所有类别的无序材料（由化学键的性质区分），脆性，刚度，弹性极限和实际缺乏延展性源于它们的分子，中程和表面拓扑结构。在无机玻璃和金属玻璃中，与任何其他固体材料相比，机械性能必须从两方面考虑：基于结构长度尺度和动力学。确定决定性的拓扑和密度约束以及它们的超高韧性工程现在被视为该领域未来的重大突破。至于尚未被忽视的协同作用源于两类玻璃的联合处理：从拓扑力学的角度来看，两种材料似乎遵循相同的本构原则：配位、填充密度、自由体积、结构动力学、结构非均质性和极端的中长期均匀性。SPP 1594的目标是浓缩德国现有的实验和理论能力，以实现对玻璃机械性能的理解和设计的概念突破。无机玻璃和金属玻璃将首次在一个共同的背景下加以考虑。SPP 1594预计将涉及12-15个高度跨学科的研究项目。专题成功、国际可见和持久影响的关键是有效协调这一努力，为此计划了一些中心活动，包括组织国家和国际讲习班和会议、促进青年研究人员、机会平等行动、建立指导方案和确保高影响力的外联和网络。