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- Title
Enhanced microwave absorption properties of La doping BaSnO<sub>3</sub> ceramic powder.
- Authors
Hu, Kang; Wang, Shipeng; Zhang, Min; Huang, Fei; Kong, Xiangkai; Liu, Qiangchun
- Abstract
The lanthanum doping barium stannate nanoparticles have been fabricated facially via a wet chemical reaction and subsequent annealing process. The thermal decomposition, phase purity, morphology and microstructure are characterized by thermo-gravimetric (TG) and differential scanning calorimetric (DSC), powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The microwave absorption properties of Ba1−xLaxSnO3 (x = 0, 0.02, 0.04 and 0.06) nanoparticles are carried out by vector network analyzer (VNA). The results reveal that the Ba1−xLaxSnO3 (x = 0.02, 0.04 and 0.06) nanoparticles exhibited enhancement of microwave absorption performance compared with the pure BaSnO3. For sample with x = 0.02, the minimum reflection loss reaches − 43.78 dB at 13.6 GHz and its effective absorption bandwidth lower than − 10 dB reaches 3.12 GHz. And there are two absorption peaks at 9.36 and 10.64 GHz with the minimum reflection loss is − 30.11 and − 31.30 dB, and the bandwidth of lower than − 10 dB can reach up to 3.12 GHz. It means that BaSnO3 by doping of La ions can be used as an excellent microwave absorption material.
- Subjects
CERAMIC powders; FIELD emission electron microscopy; X-ray powder diffraction; MICROWAVE materials; ABSORPTION; MICROWAVE sintering
- Publication
Journal of Materials Science: Materials in Electronics, 2019, Vol 30, Issue 16, p15420
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-019-01917-6