Work

Synthesis of Pb(Zr0.35−xMnxTi0.65)O3, x = 0.00, 0.02, 0.06, 0.10 ceramics and their structural, dielectric characteristics

Year: 2020

Type: article

Abstract: The samples of stoichiometry Pb(Zr0.35−x Mn x Ti0.65)O3, x = 0.00, 0.02, 0.06, 0.10 (PZMT) were synthesized by solid state reaction route. For the first time, 35/65 lead zirconate titanate ceramics were modified by manganese (Mn) by replacing zirconium. X-ray diffraction (XRD) study has confirmed the formation of tetragonal phase in samples and no structural change has been observed due to Mn doping. Results of scanning electron microscopy (SEM) showed polycrystalline nature through shape, size and grain distribution in microstructures of all samples. At room temperature, the samples have shown identical nature in variation of dielectric constant (ϵ r ) and tangent loss (tanδ) with frequency. At 50 kHz frequency, the value of maximum dielectric constant (ϵ max) has been changed from 5440 to 12 562 due to Mn. With increase in doping amount of Mn, the values of Curie temperature (T c ) have been decreased from 435 to 373 °C. Tan δ of samples is decreased with increase in the dopant concentration. The diffusivity of PZT has increased with 2% of Mn doping. But further increase in the Mn concentration has decreased the diffusiveness of the samples.

Source: Materials Research Express

DOI: 10.1088/2053-1591/ab8c72

Authors: Balgovind Tiwari, T Babu, R N P Choudhary

Institutions: Rajiv Gandhi University of Knowledge Technologies, Siksha O Anusandhan University

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,000

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Indian Institute of Technology Kharagpur, Science and Engineering Research Board