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Erschienen in:
07.12.2015
Influence of La–B–Zn glass on the sintering and microwave dielectric properties of Ca–Nd–Ti ceramics
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 4/2016
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Abstract
The effects of La2O3–B2O3–ZnO (LBZ) glass on the sintering behaviors, phase structures, microstructures and the microwave dielectric properties of perovskite type Ca0.6Nd0.26TiO3 (CNT) ceramics were studied. It indicates that the LBZ glass has an obvious effect on lowering the sintering temperature without damaging the microwave dielectric properties of the CNT ceramics. Small amounts of LBZ glass significantly lowered the sintering temperatures of CNT ceramics and obtained excellent microwave dielectric properties. However, too much LBZ glass is leading to inferior dielectric properties. The CNT ceramics doped with 3 wt% LBZ can be well sintered at 975 °C for 4 h and shows good properties: εr = 87.87, Q × f = 8132 GHz (f = 3.3 GHz), τf = +244.63 ppm/°C.