کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1654711 | 1517350 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dielectric and piezoelectric studies of Fe doped PLZT ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dielectric and piezoelectric studies of Fe doped PLZT ceramics Dielectric and piezoelectric studies of Fe doped PLZT ceramics](/preview/png/1654711.png)
چکیده انگلیسی
Polycrystalline samples of Pb0.9(La1 â zFez)0.1(Zr0.65Ti0.35)0.975O3 [referred as PLFZT] (where z = 0.0, 0.3, 0.5 and 0.7) have been synthesized by a high-temperature solid-state reaction technique. X-ray diffraction analysis suggests the formation of single-phase compounds with tetragonal structure. The dielectric studies of the compounds as a function of temperature (from room temperature (RT) to 600 K) at a frequency 10 kHz show that the compounds undergo a phase transition of diffuse type. Diffusivity studies of the 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 (Ïdc) as a function of temperature (RT to 600 K) at a constant biasing field dc 10 V/cm suggests that the compounds exhibit negative temperature coefficient of resistance (NTCR). The piezoelectric parameters as planar coupling coefficient, frequency constant and mechanical quality factor have been presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 59, Issues 29â30, December 2005, Pages 3921-3925
Journal: Materials Letters - Volume 59, Issues 29â30, December 2005, Pages 3921-3925
نویسندگان
Radheshyam Rai, Seema Sharma, R.N.P. Choudhary,