The effect of BaTiO{sub 3} particle shape on complex permittivity of 0.98MgTiO{sub 3}–0.02BaTiO{sub 3} composite powders at GHz frequencies
The effect of BaTiO{sub 3} particle shape on complex permittivity of 0.98MgTiO{sub 3}–0.02BaTiO{sub 3} composite powders at GHz frequencies
复制标题
GHz频率下BaTiO{sub 3}颗粒形状对0.98MgTiO{sub 3}–0.02BaTiO{sub 3}复合粉末复介电常数的影响
DOI：
10.1016/j.materresbull.2015.12.043
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发表时间：
2016
影响因子：
5.4
通讯作者：
H. Jantunen
中科院分区：
文献类型：
--
作者：
M. Maček;Tuomo Siponkoski;J. Juuti;M. Teirikangas;D. Suvorov;H. Jantunen
采用间接耦合的开放式同轴谐振腔，在GHz频率下研究了BaTiO 3颗粒形状对0.98MgTiO3- 0.02BaTiO3复合粉体性能的影响。拉长微米大小的钛酸钡颗粒被发现有一个显着更强的影响，介电常数相比，具有微米和纳米大小的球形钛酸钡颗粒的复合粉末。复合粉体的夹杂物折射率和介电损耗角正切分别从纯MgTiO 3粉体的13.3和4.6 × 10−3提高到含针状BaTiO 3颗粒的15.7和1.7 × 10− 2。所提出的结果提供了有价值的信息定制的性能，可用于在电子元件制造的广阔领域。
The effect of BaTiO3particle shape on the properties of 0.98MgTiO3–0.02BaTiO3composite powders was characterized and analyzed using an indirectly coupled open-ended coaxial cavity resonator at gigahertz frequencies. Elongated micrometre sized BaTiO3particles were found to have a significantly stronger effect on permittivity when compared to composite powders having micro and nano sized spherical BaTiO3particles. Inclusion permittivities and dielectric loss tangents of composite powders increased from that of pure MgTiO3powder, 13.3 and 4.6 × 10−3, up to 15.7 and 1.7 × 10−2with needle shaped BaTiO3particles, respectively. The presented results give valuable information for tailoring the properties of dielectrics which can be utilized in the vast field of electronic component manufacturing.