Microstructure and Grain-Boundary Effect on Electrical Properties of Gadolinium-Doped Ceria

2004 ◽  
Vol 85 (7) ◽  
pp. 1757-1762 ◽  
Author(s):  
Xiao-Dong Zhou ◽  
Wayne Huebner ◽  
Igor Kosacki ◽  
Harlan U. Anderson
2018 ◽  
Vol 08 (06) ◽  
pp. 1850044 ◽  
Author(s):  
Xixi Li ◽  
Zhonghua Yao ◽  
Juan Xie ◽  
Zongxin Li ◽  
Hua Hao ◽  
...  

Grain boundary effect on BaTiO3 has been widely investigated for several decades. However, all of them tailored the grain boundary by grain size of BaTiO3. In this case, a direct way was introduced to modify the grain boundary by coating technique to investigate the role of grain boundary in ferroelectric materials. Nonferroelectric phase TiO2 was employed to investigate grain boundary effects on the electrical properties of BaTiO3 piezoelectric ceramics. TiO2 coating can result in the reduction of piezoelectric and ferroelectric properties and the annealing process in oxygen can increase piezoelectric behavior of pure BaTiO3 due to valence state of Ti ions while that remains for Ti-modified composition possibly due to the increased grain boundary effect by impedance analysis. Compared with ferroelectric grain, grain boundary plays a critical role to impact the electrical properties of perovskite-type ferroelectric materials.


2010 ◽  
Vol 181 (37-38) ◽  
pp. 1665-1673 ◽  
Author(s):  
Carlos Sánchez-Bautista ◽  
Antonio J. Dos santos-García ◽  
Juan Peña-Martínez ◽  
Jesús Canales-Vázquez

2010 ◽  
Vol 97 (17) ◽  
pp. 174101 ◽  
Author(s):  
Ming Li ◽  
Jie Yang ◽  
Karim Snoussi ◽  
Lixin Li ◽  
Huixin Wang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document