Preferred orientation of pores in ceramics under heating by a linearly polarized microwave field
Preferred orientation of pores in ceramics under heating by a linearly polarized microwave field
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DOI：
10.1063/1.2723187
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发表时间：
2007-04-15
影响因子：
3.2
通讯作者：
Thumm, M.
中科院分区：
文献类型：
--
作者：
Rybakov, K. I.;Semenov, V. E.;Thumm, M.
一个球形孔的离子晶体材料进行线性极化微波辐射示出平坦沿着电场矢量。孔的变形是由于带电空位在与孔表面附近的电场的非线性相互作用过程中的高频流动的整流而发生的。估计表明，这种效果是最明显的材料中的一个显着的贡献的移动的空缺到微波吸收。在线偏振微波辐射加热烧结的氧化锆陶瓷样品中，实验观察到了孔的择优取向。(c)2007年，美国物理学会。
A spherical pore in the ionic crystalline material subjected to a linearly polarized microwave radiation is shown to flatten along the electric field vector. The deformation of the pore occurs due to rectification of high-frequency flows of charged vacancies in the course of their nonlinear interaction with the electric field near the pore surface. The estimates show that the effect is most pronounced in the materials with a significant contribution of mobile vacancies into microwave absorption. Preferred orientation of pores has been observed experimentally in a zirconia ceramic sample sintered under heating by a linearly polarized microwave radiation. (c) 2007 American Institute of Physics.