Title :
Influence of the processing parameters on the dielectric properties of PMN relaxor ceramics
Author :
Tandon, R.P. ; Dhar, Ajay
Author_Institution :
Nat. Phys. Lab., New Delhi, India
Abstract :
The dielectric properties of perovskite lead magnesium niobate (PMN) ceramics were studied as a function of the percentage of perovskite/pyrochlore phases and, in the perovskite phase, as a function of heating rate, sintering temperature, and excess/deficiency of MgO and PbO. The values of the dielectric constant of the samples prepared by two different methods were compared. The result are used to correlate the effects of these processing variables on the dielectric properties
Keywords :
ceramics; ferroelectric materials; lead compounds; permittivity; powder technology; sintering; MgO; PMN; PbMgO3NbO3; PbO; dielectric constant; dielectric properties; ferroelectric; heating rate; perovskite; processing parameters; pyrochlore phases; relaxor ceramics; sintering temperature; Calcination; Ceramics; Dielectric materials; Dielectric measurements; Ferroelectric materials; Frequency; Heating; Lead; Magnesium; Temperature;
Conference_Titel :
Applications of Ferroelectrics, 1990., IEEE 7th International Symposium on
Conference_Location :
Urbana-Champaign, IL
Print_ISBN :
0-7803-0190-0
DOI :
10.1109/ISAF.1990.200317
