Study of Factors Affecting the Dielectric Strength of [Ep/ZrO2 – y2O3] Nanocomposites

 
 
 
  • Abstract
  • Keywords
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  • Abstract


    A nanocomposite material was prepared from epoxy resin reinforced by nanoceramic powder [Nano Zirconia – Yttria, (ZrO2 – y2O3) (70-80nm)], with several weight ratios (1.5, 2.5, 3.5, 4.5 Wt%), the research samples were prepared according to the standard specifications in different thicknesses (1, 1.5, 2, 2.5mm). The effect of addition rate (Wt%) was studied in addition to  the thickness, number of cycles, and average of voltage increase, on the dielectric strength (Ebr) for the composites before immersion, then, the effects of immersing the composite material in distilled water  were observed also in NaOH and HCL diluted solutions (0.5 N)  were observed .The test results revealed an increase in( Ebr) with increasing the addition of (ZrO2 – y2O3) [( from 27.8 kv/mm for a ratio of 1.5 Wt% to 33.4 kv/mm for a ratio of 4.5Wt% at the average of voltage increase 0.5 kv/s) (and from 31.4 kv/mm for a ratio of 1.5Wt% to 36.7 kv/mm for a ratio of 4.5Wt% at the average of voltage increase of 5kv/s)], and with increasing average voltage increase, on the contrary,( Ebr) decreases with increasing the sample thickness, number of cycles, and immersion in distilled water and chemical solutions (with immersion period) noticing that the chemical solutions effect was greater than that of the distilled water.

     

     


  • Keywords


    Epoxy Resin, Zircon-Yttria, Nanocomposite, dielectric strength, Breakdown Voltage

  • References


      [1] Han.Z,Fina.A,,, Thermal conductivity of carbon nanotube and their nanopolymer ,, progress in polymer science , vol. 36, pp ( 914 – 944 ) , 2011 .

      [2] Shajio zhao, ,, Introduction to nanocomposite ,,Lincoln ,Nebraska , 2013 .

      [3] Jwetty,S.; ,, Physics for scientists and engineering with modern physics ,, 6th ed. , united states , pp ( 1421 ) ,2004 .

      [4] Kuffel,E; Abdullah,M. ,, High voltage engineering ,, ,2nd ed. , New Delhi ,pp( 382 – 396 ) , 2000 .

      [5] Rag,J. ;Woohan,E.Lee,; Transaction on electrical & electronic materials , vol. 10 , pp ( 116- 120 ), 2009 .

      [6] Mehta,V,K.; ,, Principles of electrical engineering and electronics ,, , S.Chand & Comp. LTD. Ramnagar, New Delhi , India , 2004 ..

      [7] Pattouras,M.,Tzimas,A., and Rowland, S. M,;IEEE conference on electrical insulation and dielectric phenomena , Shenzhen , 2013

      [8] Bunget ,I ; Mihai,P;,, Physics of solid Dielectrics ,, , Elsevier Oxford ,1984

      [9] Pampuch,R 1976 ;,, Ceramic materials :An introduction to their properties,,Elsevier scientific pub.comp.,Amesterdam, p.(263-296) .

      [10] L.Vouyovitch,L.,Alberola,N.D.,Flandin,L.,Beroula,A., and Bessede,J.L.;IEEE Transactions on dielectrics and electrical insulation , Institute of electrical and Electronics , 2006, 13,no.2 , pp (282-292 ). {hal-00135224 } .

      [11] Glushko,O., Klug,A., Kratochvil,E.J.W.List and Cordill,M.J.; Material science & Engineering A, 662 , pp.(157-161), 2016 .

      [12] Kai Wu. and Dissado,L.A.; Applied physics letters , vol. 85 , no. 19 ,pp.129902(1), 2004 .

      [13] Kroschwitz ,I.,, Electrical and Dielectric properties of polymers ,, John Wiley & Sons ,New York , 1988.

      [14] E.Tuncer,E.,Sauers,I. and More,K.L; Journal of nanotechnology ,vol.18 , no.32 , pp( 845-851 ) ,2007 .

      [15] S,Singha and M.J.Thomas ,,, Dielectric properties of Epoxy nanocomposite ,, IEEE Transactions on Dielectrics and Electrical Insulation , vol.15,No.1,pp.(12-23), 2008 .

      [16] Jae-Jun park ,,, Electrical Insulation Breakdown Strength in Epoxy / spherical Alumina composite for HV Insulation ,, , Transaction on Electrical and Electronic materials , vol.14, No.2, pp.(105-109 ),2013 .

      [17] Theodosiou,K., ;Journal of electrical engineering ,vol.55,no.9-10,pp.(225-231),2004.

      [18] Kai wu.,Y.,Yang W.,Yonghong Ch.,Dissado L.A.,and Xiaojun Liu;,,Journal of applied physics,107,064107,(1-5),2010.

      [19] Dutta,S.; ,, Water absorption and dielectric properties of epoxy insulation ,, Master thesis , Norwegian University of science and Technology , 2008.


 

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Article ID: 23788
 
DOI: 10.14419/ijet.v7i4.36.23788




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