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9 results on '"Sarathi, R."'

7. A Review of Two Nanocomposite Insulating Materials Models: Lewis’ Contribution in the Development of the Models, their Differences, their Similarities and Future Challenges

Author

Danikas, M., Bairaktari, A., Sarathi, R., and Basri Bin Abd Ghani, A.

Subjects
discharge path, dielectric breakdown, lcsh:T58.5-58.64, lcsh:Information technology, breakdown strength, nanocomposites, nanoparticles, glass transition temperature, electrical trees, surface discharge, lcsh:TA1-2040, lcsh:Technology (General), lcsh:T1-995, lcsh:Engineering (General). Civil engineering (General)
Abstract

Nanocomposite polymers are nowadays a major field of research. This paper investigates the interpretational possibilities of two models developed, namely, Tsagaropoulos’ model and Tanaka’s model. Particular emphasis is given to Lewis’ model, which was the first one to be proposed and whose contribution to the aforementioned models was significant. The two models were developed separately and independently from each other. They both consider various layers around the nanoparticles. They both consider well bonded and more loosen layers. Similarities and differences between the two models are pointed out and discussed as well as possibilities for further research in order to shed light on some aspects of electrical phenomena in these materials. Particular emphasis is given to the interfaces between the nanoparticles and the surrounding base material. Comments are offered regarding the challenges facing the two models w.r.t. the interpretation of discharges on nanocomposite surfaces. Possible new areas of research are suggested and new challenges for the aforementioned models are pointed out. &nbsp

Published
2014

9. Study of The Phenomena of Surface Discharges and Flashover in Nanocomposite Epoxy Resin under the Influence of Homogeneous Electric Fields.

Author

Verginadis, D., Danikas, M. G., and Sarathi, R.

Subjects
ELECTRIC fields, SURFACE phenomenon, FLASHOVER, POLYMERIC nanocomposites, NANOCOMPOSITE materials, EPOXY resins
Abstract

A new class of insulating materials is the class of polymer nanocomposites. In the past twenty-five years, a lot of attention was paid to the various electrical, thermal and mechanical properties of polymer nanocomposite materials. In the present work, epoxy resin samples without and with nanoparticles (0 wt%, 1 wt%, 3 wt%, 5 wt%, and 10 wt%) are investigated regarding the surface discharges and the flashover voltages. Four different water droplet arrangements were used, with eight different water conductivities in order to see the effect of the nanoparticle content on the surface discharges and the flashover voltages. [ABSTRACT FROM AUTHOR]

Published
2019

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