Workshop: An International Workshop on Strength and Plasticity at Nanometer and Sub-Micron Scales; Braunwald, Switzerland; September 4-7, 2007

要求国家科学基金会提供资金，举办一个为期三天的研讨会，讨论纳米和亚微米尺度对金属强度和塑性的影响。 该研讨会将突出塑料强度的显着增加，因为样品尺寸和/或微观结构尺度减小到亚微米甚至纳米尺度。 这包括亚微米压缩样品的实验和计算研究，具有纳米尺度晶粒尺寸的大块样品，以及具有纳米尺度相的多层薄膜复合材料。 所报道的现象不能用晶体或应变梯度塑性理论来解释。 因此，研讨会的一个目标是评估和批判性地评价这些观察结果和相应的理论和计算方法来理解他们。社会效益是国际范围内，涉及初级和高级参与者在材料/力学社区，并扩展到纳米技术开发人员和用户。 具体来说，这次研讨会提供了一个必要的论坛，以指导和推动国际研究界在一个传统的会议不可能的范围。 所要求的资金将使美国参与4高级和4初级（博士）。在过去6年内收到）的最高素质的研究人员，加上3至4个非常有能力的研究生和/或代表性不足的个人。 最多可容纳70名与会者。结果将通过研讨会主持人提供的书面摘要，基于网络的演示文稿流和/或演示幻灯片的捕获，以及由研究生在其家乡机构主持的研讨会讨论组进行传播。

NSF funding is requested for a three-day workshop on nanometer and sub-micrometer scale effects on strength and plasticity of metals. The workshop will highlight dramatic increases in plastic strength as sample size and/or microstructural scale decreases to sub-micron and even nanometer scales. This includes experimental and computational investigations of sub-micron compression samples, bulk samples with nanometer-scale grain size, and multilayer thin film composite materials with nanometer-scale phases. The reported phenomena are not explained by crystal or strain gradient plasticity theories. Thus, an objective of the workshop is to assess and critically evaluate these observations and the corresponding theories and computational approaches to understand them.The societal benefits are international in scope, involve both junior and senior participants in the materials/mechanics communities, and extend to nanotechnology developers and users. Specifically, this workshop provides a needed forum to guide and advance the international research community at a scope not possible in a traditional conference. The requested funding will enable US participation by 4 senior and 4 junior (Ph.D. received within the last 6 years) researchers of the highest caliber, plus 3 to 4 highly capable graduate students and/or under-represented individuals. Up to 70 participants will be accommodated. Results will be disseminated through written summaries provided by workshop moderators, web-based streaming of presentations and/or capture of presentation slides, and workshop discussion groups hosted by graduate students at their home institutions.