Coordination Funds
Coordination Funds
批准号:
221712051
负责人:
Professor Dr.-Ing. Lothar Wondraczek
金额:
$0.0万
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
项目状态:
已结题
起止时间:
2011-12-31 至 2019-12-31
关键词:
中文摘要
玻璃材料接受脆性,并受益于其光学特性和通用加工性,在低水平拉应力的环境中找到了传统的应用。然而,人们认识到,从本质上讲,玻璃是最坚固的人造材料,可以大规模生产。只有对表面损伤的低抵抗力,独特的高水平的内在强度目前还不能被利用。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、刚性、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。在无机和金属玻璃中,与任何其他固体材料不同,机械性能必须从两个方面考虑:基于结构长度尺度和动力学。行列式、拓扑和密度约束的识别及其工程实现超高韧性现在被视为该领域未来的重大突破。然而,这两类玻璃的联合处理产生了被忽视的协同作用:从拓扑力学的观点来看,这两种材料似乎遵循相同的本构原则,如配位、堆积密度、自由体积、结构动力学、结构异质性和极端的中长期均质性。SPP 1594的目标是浓缩德国国内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性突破。将首次把无机玻璃和金属玻璃放在一起审议。预计将有12-15个高度跨学科的研究项目参与战略规划1594。在专题上取得成功、产生明显和持久的国际影响的关键是有效协调这一努力,为此规划了若干中心活动,包括组织国家和国际研讨会和会议、促进青年研究人员、平等机会行动、建立指导方案以及确保高影响力的外联和联网。
英文摘要
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.
期刊论文(0)
专著(0)
科研奖励(0)
会议论文
Structure-Property-Relations in Compressed Inorganic Glasses
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批准号:230773965
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2012
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负责人:Professor Dr.-Ing. Lothar Wondraczek
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依托单位:
Struktur-Eigenschaftsbeziehungen in gemischt-anionischen Gläsern tiefschmelzender Sulfophosphate
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批准号:193491744
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2011
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负责人:Professor Dr.-Ing. Lothar Wondraczek
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依托单位:
Bismuth-aktivierte Gläser mit Infrarot-Lumineszenz als breitbandige Verstärkermaterialien für die Laser- und Informationstechnologie
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批准号:106251016
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2009
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负责人:Professor Dr.-Ing. Lothar Wondraczek
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依托单位:
Eigenschafts- und Strukturbildung, Relaxationsverhalten und Phasenbeziehungen in komprimierten anorganischen Gläsern
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批准号:112066352
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项目类别:Research Grants
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资助金额:$0.0万
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财政年份:2009
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负责人:Professor Dr.-Ing. Lothar Wondraczek
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依托单位:
海外基金