Structural, dielectric, impedance and ferroelectric properties of lead-free Bi(Fe0.85Dy0.15)O3 ceramic
نویسندگان
چکیده
Nowadays, several research groups are extensively trying to develop by synthesizing and characterizing single/co-doped single-phase bismuth ferrite (BFO) in order get a highly efficient eco-friendly multifunctional devices. In this process, report is an attempt provide the detailed studies of structural, dielectric, impedance ferroelectric properties Bi(Fe0.85Dy0.15)O3 ceramic fabricated via solid-state reaction method. Analysis X-ray diffraction (XRD) data confirms single phase orthorhombic symmetry. The average crystallite (particle) size found be ~ 41 nm. field emission scanning electron microscopy (FE-SEM) spectrum shows homogeneous grain distribution sample. elemental composition examined means energy dispersive spectroscopy (EDXS) existence constituent elements electrical measurements analysis, carried out using computer-controlled sensitive multimeter (PSM) frequency range 1 kHz–1 MHz at different sets temperature (25–325 °C), many interesting features explain further conduction mechanism. dielectric analysis exhibits high value constant (ɛr) small loss (tanδ). Due effect electronic space charge polarization, ɛr falls with increasing frequency. frequency–temperature dependence modulus reveals presence semiconductor nature non-Debye type relaxation process ac-conductivity (σac) respect obeys universal Jonscher’s power law. electric polarization study enhancement property material. Hence, based on significant material, material may considered for some applications.
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ترانسفورماتورهای قدرت از اجزای اصلی شبکه تامین انرژی الکتریکی می باشند که عملکرد قابل اطمینان ترانسفورماتورها یکی از فاکتورهای مهم و تعیین کننده در تامین انرژی الکتریکی محسوب می شود. در نتیجه بررسی و مانیتور عملکرد ترانسفورماتورها در شبکه و همچنین عیب یابی این ترانسفورماتورها غیرقابل اجتناب و ضروری می باشد. به طور کلی عایق های مایع در صنعت فشار قوی کاربردهای متفاوتی دارند که مهمترین وظیفه آنها...
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ژورنال
عنوان ژورنال: Journal of Materials Science: Materials in Electronics
سال: 2021
ISSN: ['1573-482X', '0957-4522']
DOI: https://doi.org/10.1007/s10854-021-06636-5