DIFFUSE PHASE TRANSITION AND DIELECTRIC PROPERTIES OF MN4+-DOPED BA0.9CA0.1SN0.06TI0.94O3 PEROVSKITE CERAMICS

Authors

  • Nuttapon Pisitpipathsin Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan
  • Puripat Kantha Division of Physics, Faculty of Science and Technology, Rajamangala University of Technology Thanyaburi
  • Pichitchai Butnoi Department of Metallurgical Technology, Faculty of Technical Education, Rajamangala University of Technology Krungthep
  • Muangjai Unruan Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan
  • Pristanuch Masakul Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan
  • Pornsawan Tongbai Department of Mechanical Engineering, Rajamangala University of Technology Isan
  • Pawin Iamprasertkun School of Bio-Chemical Engineering and Technology, Sirindhorn International Institute of Technology, Thammasat University
  • Pailyn Thongsanitgarn Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan
  • Panupong Jaiban Faculty of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok

DOI:

https://doi.org/10.55766/sujst9017

Keywords:

Dielectric Properties, Diffuse Phase Transition, Lead-Free Ceramic

Abstract

In this work, a conventional solid-state reaction technique was used to successfully fabricate lead-free Ba0.9Ca0.1Sn0.06Ti0.94-xMnxO3 (BCSTM) perovskite ceramics, where x = 0.00, 0.03, 0.06, and 0.09. The effect of Mn4+ doping on structure, dielectric properties, and phase transition was investigated. The dielectric constant (ε) of Mn4+-doped BCST ceramics was enhanced by Mn4+ incorporation, as measured by LCR meter at room temperature. The dielectric constant (ε) of 4963 and the low dielectric loss (tanδ) of 0.0241 were obtained at the composition of x = 0.06 at room temperature, with a frequency of 1 kHz. The dielectric property investigation indicated that the degree of the diffuse phase transition behavior increased with Mn4+ substitution. The phase transition from tetragonal to cubic symmetry was significantly dependent on the amount of Mn4+ added. It also was found that the diffuseness of the phase transition behavior of BCST ceramics was enhanced, while the phase transition temperature (TC) of these ceramic samples decreased with an increase in the content of Mn4+. In addition, the diffuseness of the phase transition behavior was enhanced with an increase in the content of Mn4+. The replacement of Mn4+ at the Ti4+ site led to diffuseness and a rapid decrease in the phase transition temperature (TC or Tm).

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Published

2025-03-20

How to Cite

Pisitpipathsin, N., Kantha, P., Butnoi, P., Unruan, M., Masakul, P., Tongbai, P., Iamprasertkun, P., Thongsanitgarn, P., & Jaiban, P. (2025). DIFFUSE PHASE TRANSITION AND DIELECTRIC PROPERTIES OF MN4+-DOPED BA0.9CA0.1SN0.06TI0.94O3 PEROVSKITE CERAMICS. Suranaree Journal of Science and Technology, 32(1), 030254(1–7). https://doi.org/10.55766/sujst9017

Issue

Vol. 32 No. 1 (2025): January - February

Section

Research Article

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