AIP Advances· 2014Q3
Influence of neutron flux, frequency and temperature to electrical impedance of nano silica particles
- 37citations
- Q3SCImago
- 2014year
Short summary
Neutron irradiation of nano silica particles (SiO2) for up to 20 hours at a flux of 2x10^13 n⋅cm−2s−1 decreases polarization and relaxation times while increasing electrical conductivity.
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Key points
- Neutron irradiation up to 20 hours (flux 2x10^13 n⋅cm−2s−1) alters SiO2 nanomaterial impedance.
- Irradiation decreases polarization and relaxation times due to nanoparticle combination.
- Electrical conductivity of SiO2 increases with longer irradiation periods.
- Low-temperature analysis revealed three distinct cluster states with different energies.
AI-generated from the title and abstract; the full text is not read.
Abstract
We studied electric impedance of SiO2 nanomaterial at its initial state and after being exposed to continuous neutron irradiation for up to 20 hours. In doing so we employed a flux of neutrons of 2x1013 n⋅cm−2s−1 while the frequency and temperature ranges amounted to 0,09 – 2.3 MHz and 100 – 400 K correspondingly. Analysis in terms of the Cole-Cole expression revealed that with increasing irradiation period the polarization and relaxation times decrease as a result of combination of nanoparticles. Moreover, it is demonstrated that the electric conductivity of samples, on the other hand, increases with the increasing irradiation period. At low temperatures formations of clusters at three distinct states with different energies were resolved.
The authors' abstract, as published at the source. AIP Advances, 2014 · DOI ↗
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Field: Nuclear Energy and Engineering
Nuclear Energy and EngineeringEnergy