Effect of the BaO-Na$_2$O-Nb$_2$O$_5$-P$_2$O$_5$ glass addition on microstructure and dielectric properties of BNN ceramics

Abderrahim Ihyadn; Daoud Mezzane; Mbarek Amjoud; Abdelilah Lahmar; Lahcen Bih; Abdelhadi Alimoussa; Igor Lukyanchuk; Mimoun El Marssi

doi:10.1016/j.matpr.2021.03.570

arXiv · 2312.04667

Effect of the BaO-Na$_2$O-Nb$_2$O$_5$-P$_2$O$_5$ glass addition on microstructure and dielectric properties of BNN ceramics

Abderrahim Ihyadn·Daoud Mezzane·Mbarek Amjoud·Abdelilah Lahmar·Lahcen Bih·Abdelhadi Alimoussa·Igor Lukyanchuk·Mimoun El Marssi

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Abstract

Barium sodium niobate Ba$_2$NaNb$_5$O$_{15}$ (BNN) ceramics with different amounts of BaO-Na$_2$O-Nb$_2$O$_5$-P$_2$O$_5$ (BNNP) glass were prepared via the conventional solid-state method. The effect of glass content on the structural, microstructure, and dielectric properties of BNN ceramics was investigated. The XRD results showed that no secondary phase was formed after adding BNNP glass. It was found that such additions reduce the average grain size and refine the microstructure of the obtained ceramics. Moreover, the samples exhibited a stable dielectric constant over the temperature range of 25$^\circ$C-150$^\circ$C, and their dielectric constants were significantly improved. The ceramic with 7.5 wt% BNNP glass content showed a dielectric constant which is more than twice as much as that of pure BNN ceramic, as well as a low dielectric loss of less than 5%.

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Abderrahim Ihyadn, Daoud Mezzane, Mbarek Amjoud, Abdelilah Lahmar, Lahcen Bih, Abdelhadi Alimoussa, Igor Lukyanchuk, Mimoun El Marssi. 2023-12-07. Effect of the BaO-Na$_2$O-Nb$_2$O$_5$-P$_2$O$_5$ glass addition on microstructure and dielectric properties of BNN ceramics. https://doi.org/10.1016/j.matpr.2021.03.570

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