期刊
JOURNAL OF APPLIED PHYSICS
卷 113, 期 20, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4807297
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资金
- National Natural Science Foundation of China [50907051]
- Fundamental Research Funds for the Central Universities
- State Key Laboratory of Electrical Insulation and Power Equipment [EIPE13311]
Our experiments on a transformer oil-based nanofluid (NF) with ZnO nanoparticles reveal a higher relative permittivity than that of pure transformer oil. Meanwhile, the relative permittivity of ZnO NF presents a linear increase with nanoparticle volumetric concentration and a linear decrease with ambient temperature. A model based on nanoparticle polarization is proposed to investigate the mechanisms of NF relative permittivity. Analysis of the presented polarization model suggests that the value of the NF relative permittivity is dominantly determined by transformer oil, while the higher relative permittivity of NFs compared with that of pure oil is mainly caused by nanoparticle inner polarization. (C) 2013 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
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