Fractal Behaviour of Atomic Scale Microstructures:an Introduction  

作　　者：沙维 

机构地区：[1]Department of Materials Science and Metallurgy,University of Cambridge,Pembroke Street,Cambridge CB2 3QZ,UK

出　　处：《Rare Metals》1993年第3期227-228,共2页稀有金属（英文版）

摘　　要：The properties of all materials depend largely on their chemical compositions.Compositional analysis by using the atom probe suggests that it is necessary to invent new parameters to describe some aspects of microstructures.Experimental and calculation work indicates that fractal dimension can be used to describe structural aspects not readily expressible with normal parameters.The application of fractal concept in mate- rials studies will enable us to understand from a brand-new angle the ultra-fine microstructures of materials.The properties of all materials depend largely on their chemical compositions.Compositional analysis by using the atom probe suggests that it is necessary to invent new parameters to describe some aspects of microstructures.Experimental and calculation work indicates that fractal dimension can be used to describe structural aspects not readily expressible with normal parameters.The application of fractal concept in mate- rials studies will enable us to understand from a brand-new angle the ultra-fine microstructures of materials.

关 键 词：Fractal dimension Atomic scale microstructure Fe-Cr based alloys MICROCHEMISTRY 

分 类 号：TG146.4[一般工业技术—材料科学与工程]