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Your search keyword '"Mahboob, Syed"' showing total 4 results
Start Over Author "Mahboob, Syed" Journal modern physics letters b
4 results on '"Mahboob, Syed"'

3. POLARIZATION REVERSAL AND ELECTROMECHANICAL STUDIES ON Ba(NdxTi1-2xNbx)O3 DIELECTRIC RELAXOR CERAMICS PREPARED THROUGH CONVENTIONAL AND MICROWAVE SINTERING ROUTE.

Author

MAHBOOB, SYED, PRASAD, G., and KUMAR, G. S.

Subjects
*POLARIZATION (Electricity), *ELECTROMAGNETIC fields, *POLYCRYSTALS, *ELECTRIC fields, *ISOSTATIC pressing
Abstract

Polarization and capacitance studies as a function of applied electric field were done on the Nd and Nb-doped polycrystalline ceramic samples. The result indicates that the ceramic samples show low values of remnant polarization. The capacitance value indicates that microwave sintered samples shows higher capacitance tunability when compared to conventional sintered samples. The results obtained from electromechanical studies are also discussed. [ABSTRACT FROM AUTHOR]

Published
2007
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4. DEGREE OF DIFFUSED PHASE TRANSITION AND NON-DEBYE DIELECTRIC RELAXATION IN Ba(NdxTi1-2xNbx)O3 CERAMICS.

Author

MAHBOOB, SYED, PRASAD, G., KUMAR, G. S., JAMES, A. R., and PRAKASH, CHANDRA

Subjects
*DIELECTRIC relaxation, *RELAXATION phenomena, *PHASE transitions, *OXIDES, *CRYSTAL lattices
Abstract

Dielectric measurements were made over the temperature range 80–300 K at different frequencies (10 kHz, 50 kHz, 100 kHz, 500 kHz and 1 MHz). The degree of relaxor behavior and diffuseness of phase transition were correlated to the cationic disorder at lattice site B. Non-Debye dielectric behavior was observed in the present samples and a modified Arrhenius relation proposed by Chen et al. was found to best describe the frequency dependent dielectric maxima temperature. [ABSTRACT FROM AUTHOR]

Published
2005
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