Effect of Sb and MnO2-Doping on Phase Transitions, Crystal Structure, Thermal, Dielectric, Ferroelectric and Piezoelectric Properties of Na0.5K0.5NbO3 Ceramics

• Autorzy: Suchanicz J. , Faszczowy I. , Czaja P. , Kusz J. , Zubko M.

Identyfikatory

DOI

10.24425/122387

• Języki publikacji: EN

Abstrakty

EN

Lead-free ceramics of Na_0.5 K_0.5 Nb_1-x Sb_x O₃ (NKNS) and Na_0.5 K_0.5 Nb_1-x Sb_x O₃ + 0.5 mol%MnO₂ (NKNS + 0.5 mol%MnO₂) (0 < x < 0.06) ceramics were prepared by a conventional solid-state hot pressing method. The ceramics possess a single-phase perovskite structure with orthorhombic symmetry. Microstructural examination revealed that Mn doping of NKNS leads to improvement of densification. The cubic-tetragonal and tetragonal-orthorhombic phase transitions of NKNS shifted to higher and lower temperature, respectively after introduction of Mn ion. Besides, ferroelectric and piezoelectric properties were improved. The results were discussed in term of difference in both ionic size and electronegativity of Nb⁵⁺ and Sb⁵⁺ and improvement of densification after Mn ion doping.

Słowa kluczowe

EN

Na0.5K0.5-NbO3-based ceramics; structural properties; ferroelectric properties; dielectric properties; piezoelectric properties

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2018
• Tom: Vol. 63, iss. 2
• Strony: 633--639
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Suchanicz J.

• Pedagogical University, Institute of Technology, 2 Podchorazych Str., 30-084 Krakow, Poland

autor

Faszczowy I.

• Pedagogical University, Institute of Technology, 2 Podchorazych Str., 30-084 Krakow, Poland

autor

Czaja P.

• Pedagogical University, Institute of Technology, 2 Podchorazych Str., 30-084 Krakow, Poland

autor

Kusz J.

• University of Silesia, Institute of Physics, 4 Uniwersytecka Str., 40-007 Katowice, Poland

autor

Zubko M.

• University of Silesia, Institute of Material Science, 1a 75 Pulku Piechoty Str., 41-500 Chorzow, Poland

Bibliografia

• [1] Y. Saito, H. Takao, T. Nonoyama, K. Takatori, T. Homma, T. Nagaya, M. Nakamura, Nature 432, 84-87 (2004).
• [2] J. Acker, H. Kungl, M. J. Hoffmann, J. Am. Cer. Soc. 93, 1270-1281 (2010).
• [3] J. Rodriguez-Carvajal, Physica B 192, 55-69 (1993).
• [4] J. Suchanicz, I. Faszczowy, D. Sitko, J. Kusz, M. Zubko, P. Jeleń, M. Antonova, A. Sternberg, W. Hofmeister, Phase Transitions 87, 992-1001 (2014).
• [5] E. Buixaderas, D. Nuzhnyy, I. Gregora, S. Kamba, M. Berta, B. Malic, M. Kosec, IEEE Transactions on Ultrasonics, Ferroelectric and Frequency Control 56, 1843-1849 (2009).

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).