On Two Nanocomposite Models: Differences, Similarities and Interpretational Possibilities Regarding Tsagaropoulos' Model and Tanaka's Model

Danikas, M. G.

doi:10.2478/v10187-010-0034-3

Cited by 19 publications

(13 citation statements)

References 22 publications

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“…The research work has showed that the space charge effect is a very vital factor that influences the initiation and development of streamer [23]. Many researchers believe that special interfacial characteristics between transformer oil and nanoparticles play a crucial role in space charge transportation during breakdown process in nanofluids [24][25][26]. The interface area consists of a lot of electronic traps that can trap and release electrons frequently.…”

Section: Discussion and Mechanism Analysismentioning

confidence: 99%

Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil

Wang

Rafiq

et al. 2016

Journal of Nanotechnology

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Nanofluids have the potential to become the alternatives of conventional transformer oil for their exquisite electrical and thermal properties. Three kinds of nanoparticles with distinct conductivities, namely, nonconductive nanoparticle Al2O3, conductive nanoparticle Fe3O4, and semiconductive nanoparticle TiO2, with different concentrations from 5% to 40% w/v were selected and suspended into transformer oil to develop nanofluids. The lightening impulse breakdown strengths of the oil samples with and without nanoparticles were measured according to IEC standard methods. The positive impulse breakdown strength indicated that breakdown strength is first increased up to the maximum value at certain concentration and then starts decreasing. The results of negative impulse breakdown manifested that the breakdown voltages of nanofluids with different concentrations were less than the breakdown voltage of pure transformer oil. Different effect mechanisms of dielectric and conductive nanoparticles were also used to describe the difference among three prepared nanofluids.

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Section: Discussion and Mechanism Analysismentioning

confidence: 99%

Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil

Wang

Rafiq

et al. 2016

Journal of Nanotechnology

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“…We note that the electrical behaviour of the PA6-CNT nanocomposites analysed in the current paper (volume resistivity and conductivity, surface resistivity and conductivity) can be theoretically approached using the two nanocomposite models, (the Tanaka or the Tsagaropoulos model) [14,15]. In such a context, different dependencies of the above mentioned electrical parameters can be accepted (temperature dependency, etc.)…”

Section: The Influence Of the Cnt Content On The Surface Resistivity mentioning

confidence: 99%

Measuring the Electrical Properties of MWNT‐PA6 Reinforced Nanocomposites

Calin

Manea

Schacher

et al. 2015

Journal of Nanomaterials

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The paper studies the electrical properties of polyamide 6- (PA6-) carbon nanotubes (CNTs) nanowebs, obtained through electrospinning. Three different treatments (chemical, mechanical, and mixed) were applied to the CNT in order to prepare the electrospinning solutions. For each treatment, the CNT content was different: 0.5%, 1%, 1.5%, and 2%. The electrical volume and surface conductivity of the obtained samples were studied by measuring their electrical volume and surface resistance. Homemade plate electrodes were used. The samples were also analyzed using a scanning electron microscope (SEM) and an atomic force microscope (AFM). Defects were found on the extremities: solvent traces, flat fibers, and beads. The mixed treatment seems too aggressive and it is not recommended. The AFM analysis gave values for roughness and profile height (Ra and Rz): extreme values were obtained for the chemically and mechanically treated samples. Next, a pristine PA6 sample was used to compare the influence of the CNT content on the electric behavior of the samples. By increasing the pressure on the specimens, the volume resistivity decreased exponentially, while the surface resistivity showed no significant changes, independently of the CNT content. The obtained behavior proves a great potential of the MWNT-PA6 reinforced nanocomposites for sensor applications.

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“…1). The thickness of the first layer is of the order of 1 nm and tightly bonded to the NP and the matrix which corresponds to a transition layer tightly bonded to both inorganic and organic substances [22]. The bound layer is 2-9 nm thick, strongly bounded via polymeric chains with the surface of the NP.…”

Section: Introductionmentioning

confidence: 99%

Statistical investigation of AC breakdown voltage of nanofluids compared with mineral and natural ester oil

Peppas

Charalampakos²,

Pyrgioti

et al. 2016

IET Science, Measurement & Technology

101

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On Two Nanocomposite Models: Differences, Similarities and Interpretational Possibilities Regarding Tsagaropoulos' Model and Tanaka's Model

Cited by 19 publications

References 22 publications

Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil

Preparation of Three Types of Transformer Oil-Based Nanofluids and Comparative Study on the Effect of Nanoparticle Concentrations on Insulating Property of Transformer Oil

Measuring the Electrical Properties of MWNT‐PA6 Reinforced Nanocomposites

Statistical investigation of AC breakdown voltage of nanofluids compared with mineral and natural ester oil

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