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Structural and electrical properties of CuO-doped NaNbO3 ceramics

  • Ayse Berksoy-Yavuz

    Ayse Berksoy-Yavuz was born in 1985, graduated in Physics, and is a researcher in Materials Science and Engineering. Her research interests include lead-free piezoceramics, texture orientation in piezoceramics, electrical characterization. She is currently working as a full-time Assistant Professor at Istanbul Gedik University, Faculty of Engineering, Department of Metallurgical and Materials Engineering.

     EMAIL logo     and Murat Danışman

    Murat Danışman was born in 1977, is a Professor of Material Science and Engineering with a degree in Physics. His research interests include surface engineering, corrosion and coating technologies, computational material science. He is currently working as a full-time professor in Istanbul Gedik University, Faculty of Engineering, Department of Metallurgical and Materials Engineering.
Published/Copyright: February 7, 2025
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Materials Testing
From the journal Materials Testing Volume 67 Issue 3

Abstract

Ceramics are one of the key materials of today’s industry. The manufacturing technique used for preparing the ceramics greatly affects the material’s structural and electrical properties. Therefore, the elements and their distribution in the material as well as understanding their relation with the manufacturing process are the key factors for managing the expected outcome. In this study, NaNbO3 ceramics and the effect of CuO-doping in solid state calcination process was investigated. For this purpose pure, 0.5 mol.% and 1.0 mol.% CuO-doped sample discs were prepared. Crystallite size, strain, atomic structure, lattice parameters and atomic occupancies of the material were calculated by using X-ray diffraction patterns combined with Rietveld analysis. Additionally, the samples were investigated with the scanning electron microscopy technique to observe the effect of CuO doping. For electrical characterization, dielectric constant and tangent loss measurements were carried out on samples. As a result, it was concluded that CuO doping affected the crystal structure of the NaNbO3 which triggered the changes in its electrical behavior. The observed effects were more pronounced at 1.0 mol.% CuO content.

Keywords: ceramics; NaNbO3 ; CuO doping; Rietveld refinement; dielectric properties
Corresponding author: Ayse Berksoy-Yavuz, Department of Metallurgical and Materials Engineering, Istanbul Gedik University, Istanbul, Türkiye, E-mail:

About the authors

Ayse Berksoy-Yavuz

Ayse Berksoy-Yavuz was born in 1985, graduated in Physics, and is a researcher in Materials Science and Engineering. Her research interests include lead-free piezoceramics, texture orientation in piezoceramics, electrical characterization. She is currently working as a full-time Assistant Professor at Istanbul Gedik University, Faculty of Engineering, Department of Metallurgical and Materials Engineering.

Murat Danışman

Murat Danışman was born in 1977, is a Professor of Material Science and Engineering with a degree in Physics. His research interests include surface engineering, corrosion and coating technologies, computational material science. He is currently working as a full-time professor in Istanbul Gedik University, Faculty of Engineering, Department of Metallurgical and Materials Engineering.

Acknowledgments

Authors gratefully thanks to Gebze Technical University, Electroceramics Laboratory for their technical support.

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Published Online: 2025-02-07
Published in Print: 2025-03-26

© 2025 Walter de Gruyter GmbH, Berlin/Boston

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https://doi.org/10.1515/mt-2024-0326
Keywords for this article
ceramics; NaNbO3; CuO doping; Rietveld refinement; dielectric properties

Articles in the same Issue

  1. Frontmatter
  2. Influence of heat input and heat exchange coefficient on temperature and stress field of a X80 steel pipeline repair-weld root pass of a type-B sleeve
  3. Optimization of stress-relief heat treatment for overlay weld repair of severely used rail tracks: effects on residual stress, microstructure and wear resistance
  4. Investigation on the axial distribution of micron inclusions and their influence on mechanical properties in a wind power spindle
  5. Influence of aerogel powder on the mechanical and stability properties of photocurable resin composites produced by stereolithography (SLA)
  6. Effect of sandblasting and aging on structural and mechanical properties of Inconel 625 coated steels for marine applications
  7. Mechanical characterization of sandwich composite structures with Alumix231 foam core between Al2024/B4C composite plates
  8. Optimization of alkali modified breadfruit peel flour-LDPE composite for car mirror casings
  9. Influence of seawater condition on shear strength of CFRP single lap bonded joints with various fiber orientation
  10. Comparative analysis of cutting methods and their impact on fatigue properties of armor steel
  11. Effect of pore structure, mechanical performance, and operational temperature on damping behavior of thermal expandible rubber-based adhesives
  12. Structural and electrical properties of CuO-doped NaNbO3 ceramics
  13. Friction and wear behavior of alkali-treated corn husk fiber reinforced polyester composites
  14. Performance of high strength natural fiber reinforced hybrid composites for structural engineering applications
  15. Fabrication and wear performance of M7C3 carbide reinforced epoxy composites
  16. Mosaic ceramic surface defect detection enhancement algorithm based on guided filter and multi-scale fusion
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