Grain landscape and dielectric properties of ceramics based on sodium, calcium, strontium niobates, depending on the synthesis and sintering conditions, and mechanical processing

J. Y. Zubarev; A. V. Nazarenko; A. V. Nagaenko; L. A. Reznitchenko

doi:10.1142/S2010135X21600109

[1] K. Chiba, N. Ishizawa, S. Oishi. A Ruddlesden–Popper-type layered perovskite, Na2Ca2Nb4O13. Acta Cryst., 55, 1041(1999).

[2] J. Y. Zubarev, L. A. Shilkina, L. A. Reznichenko. Phase states and dielectric properties of solid solutions of (1–x)NaNbO3−xSr2Nb2O7, (1–x)NaNbO3−xCa2Nb2O7 Binary Systems. Bull. RAS Phys., 80, 1361(2016).

[3] H. Ning, H. Yan, M. J. Reece. Piezoelectric stronrium niobate and calcium niobate ceramics with super-high curie points. J. Am. Ceram. Soc., 93, 1409(2010).

[4] A. Nakamura, O. Tomita, M. Higashi, S. Hosokawa, T. Tanaka, R. Abe. Solvothermal synthesis of Ca2Nb2O7 fine particles and their high activity for photocatalytic water splitting into H2 and O2 under UV light irradiation. Chem. Lett., 44, 1001(2015).

[5] J. Yang, M. Zhao, M. Shahid, J. Feng, C. Wan, W. Pan. Electronic structure, anisotropic elastic and thermal properties of monoclinic Ca2Nb2O7. Ceram. Int., 42, 9426(2016).

[6] R. Muhammad, Y. Iqbal, C. R. Rambo. Structure–property relationship in NaCa4B5O17 (B=Nb, Ta) perovskites. J. Mater. Sci. Mater. Electron., 26, 2161(2015).

[7] J. Zubarev, N. Boldyrev, S.-H. Chang, C. Lin, A. Pavlenko, A. Nazarenko, A. Nagaenko, Y. Yurasov, I. Verbemko, I. Parinov, L. Reznichenko. Phase states, microstructure and dielectric characteristics of solid solutions (1–x)NaNbO3−xCa2Nb2O7 and (1–x)NaNbO3−xSr2Nb2O7. Heliyon, 6, e05197-1(2019).

[8] S. Nanamatsu, M. Kimura. Ferroelectric properties of Ca2Nb2O7 single crystal. J. Phys. Soc. Jpn., 36, 1495(1974).