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复合金属合金的概念、性质和前景

Complex Metallic Alloys: Concept, Properties and Perspective
课程网址: http://videolectures.net/kolokviji_dubois_cma/  
主讲教师: Jean-Marie Dubois
开课单位: 南锡第二大学
开课时间: 2008-12-03
课程语种: 英语
中文简介:
会议将集中讨论复杂金属合金的非典型行为的几个例子, 包括准晶体作为由金属制成的晶体中结构复杂性的最终状态。本主题中的主要问题是了解大自然为何选择复杂的化合物, 而大多数组成金属则体现了硬球最密集的可能包装的简单版本。 反过来, 复杂性意味着非典型的物理性质, 与简单金属及其合金所闻名的物理性质有很大的不同。例如运输特性、表面电子结构、表面能量、润湿和摩擦。 作者认为, 复杂的金属合金帮助我们重温古老的, 也可能是金属物理学中已经解决的问题, 从而提高了我们对凝聚态基本特性的认识, 同时在平行的潜在应用中可能会被整理出来。将给出例子。----
课程简介: The conference will focus at a few examples of the atypical behavior of complex metallic alloys, including quasicrystals as the ultimate state of structural complexity in a crystal made of metals. The main issue in this topic is to understand why Nature selects complex compounds, whereas most constituent metals embody simple versions of the densest possible packing of hard spheres. In turn, complexity entails atypical physical properties that significantly depart from the ones known for simple metals and their alloys. Examples are transport properties, surface electronic structure, surface energy, wetting and friction. The view of the author is that complex metallic alloys help us revisit ancient, and probably also well-established problems in metal physics, thus improving our understanding of the basic properties of condensed matter, while in parallel potential applications may be sorted out. Examples will be given. ----
关 键 词: 化学; 表面电子结构; 金属晶体结构
课程来源: 视频讲座网
最后编审: 2020-06-08:wuyq
阅读次数: 40