<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The effect of LiF and CBS glass additives on the microstructure and dielectric property of BaTiO3 (BT) ceramics was studied. The phase of BaLiF3 was observed from the interaction between BT and LiF when the samples were sintered at 900 °C for 1 h. Crystal grains with Ba and F in atomic ratios of 1:3 were observed from the SEM and TEM analysis of the microstructures. Abnormal grain growth (AGG) was observed to occur in the BT ceramics sintered at 950 °C. Further improvement to the composition was achieved by employing a two-stage process. This included CBS glass shell coating of the BT particles in the first stage, and the addition of LiF in the second stage. The composition thus formed had very good permittivity (1725) and an extremely low dielectric loss value (0.008).</p></abstract>

The effect of LiF and CBS glass additives on the microstructure and dielectric property of BaTiO3 (BT) ceramics was studied. The phase of BaLiF3 was observed from the interaction between BT and LiF when the samples were sintered at 900 °C for 1 h. Crystal grains with Ba and F in atomic ratios of 1:3 were observed from the SEM and TEM analysis of the microstructures. Abnormal grain growth (AGG) was observed to occur in the BT ceramics sintered at 950 °C. Further improvement to the composition was achieved by employing a two-stage process. This included CBS glass shell coating of the BT particles in the first stage, and the addition of LiF in the second stage. The composition thus formed had very good permittivity (1725) and an extremely low dielectric loss value (0.008).

Sintering of titanate based dielectrics doped with lithium fluoride and calcium borosilicate glass

Department of Material Science and Engineering, National United University, Miao-Li, 36003, Taiwan

Department of Physics, National Taiwan Normal University, Taipei, 11677, Taiwan

Microelectronics and Materials Physics Laboratories, University of Oulu, P.O. Box 4500, FIN-90014, Oulu, Finland

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The effect of LiF and CBS glass additives on the microstructure and dielectric property of BaTiO3 (BT) ceramics was studied. The phase of BaLiF3 was observed...

Sintering of titanate based dielectrics doped with lithium fluoride and calcium borosilicate glass

Publié en ligne: 03 août 2011

Pages: 29 - 34

DOI: https://doi.org/10.2478/s13536-011-0006-8

Mots clés
dielectrics, low sintering temperature, barium titanate, two stage process

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Sintering of titanate based dielectrics doped with lithium fluoride and calcium borosilicate glass

Publié en ligne: 03 août 2011

Pages: 29 - 34

DOI: https://doi.org/10.2478/s13536-011-0006-8

Mots clésdielectrics, low sintering temperature, barium titanate, two stage process

© 2011 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
dielectrics, low sintering temperature, barium titanate, two stage process