Technology and Electrophysical Properties of the (K0.44Na0.52Li0.04)NbO3 Ceramics Doped by Cr3+, Zn2+, Sb3+ or Fe3+

• Autorzy: Bochenek D. , Osińska K. , Niemiec P. , Adamczyk M. , Goryczka T. , Szych R.

Identyfikatory

DOI

10.24425/123818

• Języki publikacji: EN

Abstrakty

EN

In the work five ceramic compounds based on the (K_0.44Na_0.52Li_0.04)NbO₃ (KNLN) material modified with oxides: Cr₂O₃, ZnO, Sb₂O₃ or Fe₂O₃ (in an amount of 0.5 mol.%) were obtained. The KNLN-type composition powder was prepared by solid phase synthesis from a mixture of simple oxides and carbonates, while compacted of the ceramic samples was conducted by free sintering methods. In the work the effect of the used admixture on the electrophysical properties of the KNLN ceramics was presented. The XRD, EDS tests, the SEM measurements of the morphology ceramic samples, dielectric properties and DC electric conductivity were conducted. The research showed that the used admixtures introduced into the base of KNLN-type composition improve the microstructure of the ceramic samples and improve their sinterability. In the case of the dielectric measurements, it was observed a decrease in the maximum dielectric permittivity at the T_C for dopred KNLN-type samples. The addition of an admixture of chromium, zinc, antimony or iron in an amount of 0.5 mol.% to the base composition (K_0.44Na_0.52Li_0.04)NbO₃ practically does not change the phase transition temperature. The diminution in the density value of doped KNLN ceramics was attributed to the alkali elements volatilization.

Słowa kluczowe

EN

lead free ceramics; KNLN ceramics; SEM microstructure; dielectric tests

• 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. 3
• Strony: 1401--1409
• Opis fizyczny: Bibliogr. 22 poz., rys., tab., wykr., wzory

Twórcy

autor

Bochenek D.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Technology and Mechatronics 12, Żytnia St., 41-200, Sosnowiec, Poland

autor

Osińska K.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Technology and Mechatronics 12, Żytnia St., 41-200, Sosnowiec, Poland

autor

Niemiec P.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Technology and Mechatronics 12, Żytnia St., 41-200, Sosnowiec, Poland

autor

Adamczyk M.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Technology and Mechatronics 12, Żytnia St., 41-200, Sosnowiec, Poland

autor

Goryczka T.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Material Science, 1a, 75 Pułku Piechoty St., 41-500 Chorzów, Poland

autor

Szych R.

• University of Silesia in Katowice, Faculty of Computer Science and Material Science, Institute of Technology and Mechatronics 12, Żytnia St., 41-200, Sosnowiec, Poland

Bibliografia

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Uwagi

PL

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