scholarly journals Absence of Distinctively High Grain-Boundary Impedance in Polycrystalline Cubic Bismuth Oxide

2017 ◽  
Vol 54 (5) ◽  
pp. 413-421 ◽  
Author(s):  
Hyun Joon Jung ◽  
Sung-Yoon Chung
Keyword(s):  
Grain Boundary ◽  
Bismuth Oxide ◽  
Boundary Impedance

scholarly journals Space–charge theory applied to the grain boundary impedance of proton conducting BaZr0.9Y0.1O3−δ

2010 ◽  
Vol 181 (5-7) ◽  
pp. 268-275 ◽  
Author(s):  
Christian Kjølseth ◽  
Harald Fjeld ◽  
Øystein Prytz ◽  
Paul Inge Dahl ◽  
Claude Estournès ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Space Charge ◽  
Proton Conducting ◽  
Boundary Impedance

Grain Boundary Impedance in Ferroelectric Ceramic

1986 ◽  
Author(s):  
Hee-Young Lee ◽  
S.S. Villamil ◽  
L.C. Burton
Keyword(s):  
Grain Boundary ◽  
Ferroelectric Ceramic ◽  
Boundary Impedance

Solute Segregation and Grain-Boundary Impedance in High-Purity Stabilized Zirconia

1996 ◽  
Vol 79 (5) ◽  
pp. 1169-1180 ◽  
Author(s):  
Makoto Aoki ◽  
Yet-Ming Chiang ◽  
Igor Kosacki ◽  
L. Jong-Ren Lee ◽  
Harry Tuller ◽  
...  
Keyword(s):  
Grain Boundary ◽  
High Purity ◽  
Solute Segregation ◽  
Stabilized Zirconia ◽  
Boundary Impedance

Magnetic Transitions Studied by Electrically Based Methods in Mn-Zn Ferrite

1997 ◽  
Vol 500 ◽  
Author(s):  
P. Gutiérrez ◽  
A. Peláiz ◽  
A. Huanosta ◽  
R. Valenzuela
Keyword(s):  
Phase Transition ◽  
Grain Boundary ◽  
Magnetic Phase ◽  
Complex Impedance ◽  
Low Frequency ◽  
Magnetic Method ◽  
Boundary Frequency ◽  
Impedance Response ◽  
Zn Ferrite ◽  
Boundary Impedance

ABSTRACTThe thermal variations in electrical conductivity of polycrystalline Mn-Zn ferrites was investigated by impedance spectroscopy. Two well defined semicircles were observed in complex impedance plots, which were associated with grain (or bulk) and grain boundary impedance response, for the high and low frequency ranges, respectively. From these results, the characteristic relaxation frequencies were obtained for each process. The grain boundary frequency exhibited a monotonous behavior as a function of temperature, while the bulk frequency showed a maximum at 132 °C. By a magnetic method, it was verified that this temperature corresponds to the Curie transition. These results show therefore that a magnetic phase transition can be studied by means of electrical methds.

Sign in / Sign up

Export Citation Format

Share Document