Rai, R. and Sharma, S. and Choudhary, R. N. P. (2006) Effect of Al doping on structural and dielectric properties of PLZT ceramics. Journal of Materials Science , 41 (13). pp. 4259-4265. ISSN 0022-2461
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Abstract
yPolycrystalline samples of Al modified lead lanthanum zirconate titanate [PLZT] with Zr = 55% and Ti = 45%, have been synthesized by a high-temperature solid-state reaction technique. X-ray diffraction analysis of the compounds suggests the formation of a single-phase compound with tetragonal structure. Dielectric studies of the compounds as a function of temperature (from 30 to 350 degrees C) at frequency (1, 10 and 100 kHz) show that the compounds undergo a phase transition of diffuse type. The transition temperature shifts towards higher side with increase in frequency a typical characteristic of a relaxor material. Diffusivity (gamma) study of phase transition of these compounds provided its value between 1 and 2, indicating the variation of degree of disordering in the system. Measurement of dc resistivity (rho) as a function of temperature (Room temperature, RT to 350 degrees C) at a constant biasing field suggests the compounds have negative temperature coefficient of resistance (NTCR).
Item Type: | Article |
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Additional Information: | Copyright for this article belongs to M/s Springer Verlag. |
Subjects: | Agriculture, Multidisciplinary Materials Science |
Divisions: | UNSPECIFIED |
Depositing User: | Users 27 not found. |
Date Deposited: | 08 May 2018 12:05 |
Last Modified: | 08 May 2018 12:05 |
URI: | http://npl.csircentral.net/id/eprint/2451 |
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