Fractals In Ceramic Structure
Fractals In Ceramic Structure
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陶瓷结构中的分形
DOI：
10.1007/978-1-4419-8666-5_56
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发表时间：
1999
影响因子：
1.5
通讯作者：
I. Mitrovic
中科院分区：
文献类型：
--
作者：
V. Mitić;L. Kocic;I. Mitrovic
将欧氏几何与分形几何相结合，提出了钛酸钡陶瓷晶粒的新结构构型模型。研究了钛酸钡陶瓷颗粒位置的体视学构型以及颗粒位移对接触表面的影响。采用了含有一对颗粒的结构模式模型。接触面积的大小在晶粒结构中具有显著的重要性。晶粒间接触面积是钛酸钡陶瓷材料中电子工艺的基础1，2。任何两个颗粒之间的任何接触区域都可以被视为微电容器的几何形状。它的微阻抗包括电容、电感和无源电阻分量。另一方面，除了所使用的方法之外，任何接触表面都可以表示为晶粒的相互位置和烧结过程的参数（压力、温度和烧结时间）的函数。因此，采用电子显微镜法进行了实验，在压制压力高达150 MPa，烧结温度高达1370°C的条件下制备了陶瓷样品。
Using combination of Euclidean and fractal geometry, the new structural configuration model of BaTiO3-ceramic grains is presented. The stereological configuration of the position of BaTiO3-ceramic grains and the influence of grain’s displacement on contact surfaces is studied. The model of structural pattern, containing a pair of grains is used. The contact area size is of distinguished importance in grains structure. The intergrain contact area is a basis of electronic processes in BaTiO3-ceramics material1,2. Any contact area, between any two grains can be seen as a geometry of a microcapacitor. Its microimpedance contains capacitive, inductive and passive resistance components. On the other hand, any contact surface, apart of the method being used can be represented as a function of mutual position of grains and parameters of sintering process (pressure, temperature and sintering time). Therefore, experiments were made by using the electronic microscopy method, with the ceramic samples prepared under pressing pressure up to 150 MPa and sintering temperature up to 1370°C.