A synergistic effect of La2O3–B2O3–ZnO and V2O5–CuO glass on the low-temperature sintering of Ca0.6La0.268TiO3 dielectric ceramic

A synergistic effect of La2O3–B2O3–ZnO and V2O5–CuO glass on the low-temperature sintering... The La2O3–B2O3–ZnO (LBZ) and V2O5–CuO (VC) glasses were co-doped to the Ca0.6La0.268TiO3 (CLT) ceramics as the sintering aids. The effects of LBZ and VC glasses on the low temperature sintering characteristics, phase composition, microstructure, activation energy and dielectric properties of CLT ceramics were investigated systematically. The results show that the synergistic effect of the LBZ and VC co-doped glasses can greatly reduce the sintering temperature of CLT from 1350 to 900 °C with excellent microwave dielectric properties, attributing to the reduction of the activation energy (Ea) of the CLT with co-doped glasses. Typically, CLT ceramics with 3 wt% LBZ and 1 wt% VC sintered at 900 °C/4 h exhibited good microwave dielectric properties of εr = 98.94, Q × f = 4885 GHz (f = 3.25 GHz) and τf = 305.17 ppm/°C. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Materials Science: Materials in Electronics Springer Journals

A synergistic effect of La2O3–B2O3–ZnO and V2O5–CuO glass on the low-temperature sintering of Ca0.6La0.268TiO3 dielectric ceramic

A synergistic effect of La2O3–B2O3–ZnO and V2O5–CuO glass on the low-temperature sintering of Ca0.6La0.268TiO3 dielectric ceramic

J Mater Sci: Mater Electron (2017) 28:13132–13138 DOI 10.1007/s10854-017-7147-4 A synergistic effect of  La O –B O–ZnO and  V O –CuO glass 2 3 2 3 2 5 on the low-temperature sintering of  Ca La TiO dielectric 0.6 0.268 3 ceramic 1 1 1 1 1 Yawei Chen  · Enzhu Li  · Mengying Zou  · Hongcai He  · Shuren Zhang   Received: 29 March 2017 / Accepted: 15 May 2017 / Published online: 31 May 2017 © Springer Science+Business Media New York 2017 Abstract The La O –B O –ZnO (LBZ) and V O –CuO CaO–La O –TiO ceramic with orthorhombic per- 2 3 2 3 2 5 2 3 2 (VC) glasses were co-doped to the Ca La TiO (CLT) ovskite structure possesses excellent dielectric proper- 0.6 0.268 3 ceramics as the sintering aids. The effects of LBZ and VC ties of high permittivity (ε ~109) and high quality factor glasses on the low temperature sintering characteristics, value (Q × f >8000  GHz) when sintered at a high sinter- phase composition, microstructure, activation energy and ing temperature (>1300 °C), reported by Huang et al. [12]. dielectric properties of CLT ceramics were investigated However, the high sintering temperature of CLT ceram- systematically. The results show that the synergistic effect ics limited its potential integration into the LTCC micro- of the LBZ and VC co-doped glasses can greatly reduce wave devices. In our previous work [13], it was found the sintering temperature of CLT from 1350 to 900 °C with that Ca La TiO (x = 0.4) (CLT)ceramic with (1−x) (2x/3) 3 excellent microwave dielectric properties, attributing to the 3  wt% La–B–Zn (LBZ) glasses sintered at 950 °C for 4  h reduction of the activation energy (Ea) of the CLT with co- showed excellent properties: ε = 103.12, Q × f = 8826  GHz doped glasses. Typically, CLT...
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Publisher
Springer US
Copyright
Copyright © 2017 by Springer Science+Business Media New York
Subject
Materials Science; Optical and Electronic Materials; Characterization and Evaluation of Materials
ISSN
0957-4522
eISSN
1573-482X
D.O.I.
10.1007/s10854-017-7147-4
Publisher site
See Article on Publisher Site

Abstract

The La2O3–B2O3–ZnO (LBZ) and V2O5–CuO (VC) glasses were co-doped to the Ca0.6La0.268TiO3 (CLT) ceramics as the sintering aids. The effects of LBZ and VC glasses on the low temperature sintering characteristics, phase composition, microstructure, activation energy and dielectric properties of CLT ceramics were investigated systematically. The results show that the synergistic effect of the LBZ and VC co-doped glasses can greatly reduce the sintering temperature of CLT from 1350 to 900 °C with excellent microwave dielectric properties, attributing to the reduction of the activation energy (Ea) of the CLT with co-doped glasses. Typically, CLT ceramics with 3 wt% LBZ and 1 wt% VC sintered at 900 °C/4 h exhibited good microwave dielectric properties of εr = 98.94, Q × f = 4885 GHz (f = 3.25 GHz) and τf = 305.17 ppm/°C.

Journal

Journal of Materials Science: Materials in ElectronicsSpringer Journals

Published: May 31, 2017

References

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