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Investigation of dielectric, mechanical, and electrical properties of flame synthesized Y2/3Cu2.90Zn0.10Ti4O12 material

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Abstract

A simple flame synthesis method was used to fabricate the Y2/3Cu2.90Zn0.10Ti4O12 (YCZTO) material. The X-ray diffraction analysis showed the single-phase formation of the YCZTO material directly sintered at 1050 °C for 15 h. Scanning electron microscopy showed well packed grains with high densification of morphology having the average grain size in range of 0.8–4 µm. X-ray photoelectron spectroscopy analysis showed that the Cu and Zn are in + 2 valence state confirming the Zn successfully incorporated at Cu2+ site. YCZTO exhibited the εr value of ∼ 1.4 × 103 and dielectric loss (tan δ) of ∼ 0.09 at 50 °C. The impedance spectroscopy analysis suggested that the obtained YCZTO material is electrically heterogeneous. The activation energies (Ea) for conduction at the grain boundaries at higher temperature range (110–150 °C) were found to be in the range ∼ 1.0 eV. Besides the dielectric property, YCZTO also showed the interesting mechanical and I–V characteristics.

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Acknowledgements

This work was supported by the National Research Foundation (NRF-2015R1D1A3A01019167 for Y. Lee and NRF-2015R1D1A4A01019630 for L. Singh) and Priority Research Centers Program (NRF-2009-0093818) funded by the Ministry of Education in the Republic of Korea.

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Authors and Affiliations

  1. Department of Chemistry, University of Ulsan, Ulsan, 44776, Republic of Korea

    Laxman Singh, Shiva Sunder Yadava & Youngil Lee

  2. Department of Chemistry, R.R.S. College, Mokama, Patna, 803302, Bihar, India

    Laxman Singh

  3. Department of Physics and Energy Harvest Storage Research Center, University of Ulsan, Ulsan, 44610, Republic of Korea

    Muhammad Sheeraz

  4. School of Mechanical Engineering, University of Ulsan, Ulsan, 44610, Republic of Korea

    Mahmudun Nabi Chowdhury

  5. Department of Chemistry, Institute of Science (BHU), Varanasi, 221005, India

    U. S. Rai

  6. School of Materials Science and Engineering, University of Ulsan, Ulsan, 44776, Republic of Korea

    Young Seok Park

  7. Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India

    Satya Vir Singh

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  1. Laxman Singh
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Singh, L., Sheeraz, M., Chowdhury, M.N. et al. Investigation of dielectric, mechanical, and electrical properties of flame synthesized Y2/3Cu2.90Zn0.10Ti4O12 material. J Mater Sci: Mater Electron 29, 10082–10091 (2018). https://doi.org/10.1007/s10854-018-9052-x

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