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stevenwen铁杆木虫 (著名写手)
科研小丁
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[交流]
纳米材料创始人H. Gleiter综述,引用达400余次,
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Nanostructured materials: basic concepts and microstructure*1 H. Gleiter Forschungszentrum Karlsruhe, Institute of Nanotechnology, D-76021 Karlsruhe, Germany Abstract Nanostructured Materials (NsM) are materials with a microstructure the characteristic length scale of which is on the order of a few (typically 1–10) nanometers. NsM may be in or far away from thermodynamic equilibrium. NsM synthesized by supramolecular chemistry are examples of NsM in thermodynamic equilibrium. NsM consisting of nanometer-sized crystallites (e.g. of Au or NaCl) with different crystallographic orientations and/or chemical compositions are far away from thermodynamic equilibrium. The properties of NsM deviate from those of single crystals (or coarse-grained polycrystals) and/or glasses with the same average chemical composition. This deviation results from the reduced size and/or dimensionality of the nanometer-sized crystallites as well as from the numerous interfaces between adjacent crystallites. An attempt is made to summarize the basic physical concepts and the microstructural features of equilibrium and non-equilibrium NsM. |
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stevenwen
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3楼2007-01-19 19:29:10
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2楼2007-01-19 18:58:02
stevenwen
铁杆木虫 (著名写手)
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哈哈~~连结http://emuch.net/bbs/viewthread.php?tid=394045&fpage=1
4楼2007-01-19 20:12:34
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