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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(6) [December 2005] >
| Title: | Phase transition in Pb[(Mg3/4Cu1/4)1/3Nb2/3]O3 ceramic |
| Authors: | Kumar, Amit
Prasad, K
Choudhary, S N
Sinha, T P |
| Issue Date: | Dec-2005 |
| Publisher: | CSIR |
| IPC Code: | C04B33/00, G01N33/38 |
| Abstract: | Single phase perovskite-type cubic ceramics of Pb[(Mg3/4Cu1/4)1/3Nb2/3]O3
(PMCN) were synthesized by high temperature double step solid state reaction
technique. Dielectric studies show relaxor behaviour with diffuse phase
transition. The phase transition (Tm)
occurs at -22°C at
10 kHz. The frequency dependence of Tm
has been modeled using Vogel-Fulcher relation. The dielectric relaxation in
PMCN is found analogous to the magnetic relaxation in spin-glass system. The
relaxor behaviour in PMCN has also been examined through admittance
spectroscopy. |
| Page(s): | 586-590 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(6) [December 2005]
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