Isothermal aging of the complex dielectric permittivity in MnO doped lead magnesium niobate: Lead titanate relaxor ferroelectric ceramics

1988 ◽  
Vol 82 (1) ◽  
pp. 111-117 ◽  
Author(s):  
W. Y. Pan ◽  
Q. Y. Jiang ◽  
L. E. Cross
Keyword(s):  
Dielectric Permittivity ◽  
Lead Titanate ◽  
Isothermal Aging ◽  
Relaxor Ferroelectric ◽  
Lead Magnesium Niobate ◽  
Ferroelectric Ceramics ◽  
Complex Dielectric Permittivity ◽  
Magnesium Niobate ◽  
Lead Magnesium ◽  
Relaxor Ferroelectric Ceramics

Ferroelectric and Relaxor Ferroelectric to Paralectric Transition Based on Lead Magnesium Niobate (PMN) Materials

2013 ◽  
Vol 795 ◽  
pp. 658-663 ◽  
Author(s):  
Rozana A.M. Osman ◽  
Mohd Sobri Idris ◽  
Zul Azhar Zahid Jamal ◽  
Sanna Taking ◽  
Syarifah Norfaezah Sabki ◽  
...  
Keyword(s):  
Dielectric Permittivity ◽  
Ceramic Materials ◽  
Ferroelectric Materials ◽  
Relaxor Ferroelectric ◽  
Lead Magnesium Niobate ◽  
Rochelle Salt ◽  
Magnesium Niobate ◽  
Lead Magnesium ◽  
Structure Lead ◽  
High Dielectric

First ferroelectric materials were found in Rochelle salt was in a perovskite structure. Lead Magnesium Niobate (PMN) is a perovskites with a formula of PbMg1/3Nb2/3O3 (PMN) and are typical representatives for most of all ferroelectrics materials with relaxor characteristic. It posses high dielectric permittivity which nearly ~ 20,000[ with a broad dielectric permittivity characteristic, known as relaxor ferroelectric below room temperature. Some of the researcher might think that the transition from relaxor ferroelectric to paraelectric is similar to the characteristic as observed from ferroelectric to paraelectric, but it is not necessary. The puzzling is how do we categorise them. How is the domain structure look like typically in ceramic materials.

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