The effect of mechanical activation on dielectric properties of ceramic ferroelectrics-relaxors PbMg1/3Nb2/3O3 and PbFe1/2Ta1/2O3

被引：5
|
作者：
Raevskaya, S. I. [1 ,2 ]
Gusev, A. A. [3 ]
Isupov, V. P. [3 ]
Kubrin, S. P. [1 ,2 ]
Raevski, I. P. [1 ,2 ]
Titov, V. V. [1 ,2 ]
Chen, H. [4 ]
机构：
[1] Southern Fed Univ, Res Inst Phys, Rostov Na Donu, Russia
[2] Southern Fed Univ, Fac Phys, Rostov Na Donu, Russia
[3] SB RAS, Inst Solid State Chem & Mechanochem, Novosibirsk, Russia
[4] Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Macau, Peoples R China
来源：
FERROELECTRICS | 2018年 / 525卷 / 01期
基金：
俄罗斯基础研究基金会;
关键词：
PMN; PFT; dielectric response; relaxor; mechanical activation; PIEZOELECTRIC PROPERTIES; PYROELECTRIC RESPONSE; COMPLEX PEROVSKITES; PHASE-TRANSITION; X-RAY; DISORDER; PBFE0.5NB0.5O3; DIFFRACTION; MOSSBAUER;
D O I：
10.1080/00150193.2018.1432921
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-energy mechanical activation of the starting oxides was found to reduce dramatically or even suppress the frequency shift of the dielectric permittivity maximum of ceramic ferroelectrics-relaxors PbMg1/3Nb2/3O3 and PbFe1/2Ta1/2O3 sintered from the mixture of these oxides. At the same time, the value of permittivity maximum does not change substantially. On increase of the sintering temperature above approximate to 1100 degrees C for PbFe1/2Ta1/2O3 and approximate to 1200 degrees C for PbMg1/3Nb2/3O3 the effect of mechanical activation on dielectric properties of both these ceramics gradually vanishes.
引用
收藏
页码：37 / 46
页数：10
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