This paper presents the results of dielectric and dilatometric measurements of porous glasses filled with KNO3from water solution and from the melt. It was shown that ferroelectric phase transition is observed during the cooling process only in KNO3nanocrystals introduced into the porous matrix. The phase diagram of transition temperatures versus average values of pore dimensions was obtained. The phenomenological model describing the phase transition and size effects in KNO3crystals is proposed. © 2007 Elsevier B.V. All rights reserved.
Poprawski, R., Rysiakiewicz-Pasek, E., Sieradzki, A., Cizman, A., & Polańska, J. (2007). Ferroelectric phase transitions in KNO3 embedded into porous glasses. Journal of Non-Crystalline Solids, 353(47–51), 4457–4461. https://doi.org/10.1016/j.jnoncrysol.2007.01.086