Effects of BaTiO3 on dielectric behavior of BaTiO3-Ni-polymethyl methacrylate composites

被引：57

作者：

Choi, Hyung-Woo

Heo, Young-Woo

Lee, Joon-Hyung

Kim, Jeong-Joo ^{[1
]}

Lee, Hee-Young

Park, Eun-Tae

Chung, Yul-Kyo

机构：

[1] Kyungpook Natl Univ, Dept Inorgan Mat Engn, Taegu 702701, South Korea

[2] Yeungnam Univ, Dept Mat Sci & Engn, Kyongsan 712749, South Korea

[3] Samsung Electromech Co Ltd, Suwon 443803, South Korea

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 13期

关键词：

D O I：

10.1063/1.2354425

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Effects of ferroelectric BaTiO3 particles were investigated on the dielectric behavior of BaTiO3-Ni-polymethyl methacrylate composites fabricated by a two-step mixing and hot-molding method. The percolation power law in the smearing region was employed to explain the experimental results. The composites exhibit the dependence of the dielectric constant, dielectric loss, and percolation threshold on the concentration and particle size of BaTiO3. The results suggest that BaTiO3 particles play an important role in increasing the percolation threshold and the smearing region as well as the dielectric constant of BaTiO3-Ni-polymethyl methacrylate composites. (c) 2006 American Institute of Physics.

引用

页数：3

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