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- Title
Dielectric properties of - composite ceramics.
- Authors
Wang, Jing; Cheng, Haiyan; Gao, Lan; Wang, Xianling; Duan, Ruijie; Li, Jiali
- Abstract
The ceramics with the composition of - (NBT-BMST) in which = 0.2, 0.3, 0.4 and 0.5 were prepared successfully by the solid-state reaction method. The effects of NBT-doping on phase structure, morphology, temperature stability and dielectric properties had been investigated in detail. The XRD results show that the composites are composed of tetragonal perovskite. The phase structure of NBT-BMST is observed by scanning electron microscopy. The dielectric constant of - ceramic is 4100, the temperature coefficients of capacitance are −15%, 15% and 22% at −55C, 60C and 200C, respectively. And the dielectric loss is less than 0.13, which is obviously superior to other compositions. The results of this work showed that the component of - is a promising candidate to high-temperature stable materials.
- Subjects
DIELECTRIC properties; FIBER-reinforced ceramics; THERMAL stability; MORPHOLOGY; ELECTRON microscopy; DIELECTRIC properties of perovskite
- Publication
Modern Physics Letters B, 2017, Vol 31, Issue 5, p-1
- ISSN
0217-9849
- Publication type
Article
- DOI
10.1142/S0217984917500440