Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites
This paper reports a.c., d.c. conductivity and dielectric behavior of Ep-hybrid composite with12 Vol.% Kevlar-Carbon hybrid . D.C. conductivity measurements are conducted on the graded composites by using an electrometer over the temperature range from (293-413) K. It was shown then that conductivi...
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| Format: | Article |
| Language: | Arabic |
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College of Science for Women, University of Baghdad
2011-03-01
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| Series: | Baghdad Science Journal |
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| Online Access: | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1146 |
| _version_ | 1818163885942767616 |
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| author | Baghdad Science Journal |
| author_facet | Baghdad Science Journal |
| author_sort | Baghdad Science Journal |
| collection | DOAJ |
| description | This paper reports a.c., d.c. conductivity and dielectric behavior of Ep-hybrid composite with12 Vol.% Kevlar-Carbon hybrid . D.C. conductivity measurements are conducted on the graded composites by using an electrometer over the temperature range from (293-413) K. It was shown then that conductivity increases by increasing number of Kevlar –Carbon fiber layers (Ep1, Ep2, Ep3), due to the high electrical conductivity of Carbon fiber. To identify the mechanism governing the conduction, the activation energies at low temperature region (LTR) and at high temperature region (HTR) have been calculated. The activation energy values for hybrid composite decrease with increasing number of fiber layers. The a.c. conductivity was measured over frequency range 100 Hz-1MHz. It was found that? ?(?) values increase with increasing frequency according to the relation ? (?)=Aws . The values of frequency exponent (s) were found to increase with number of layers. |
| first_indexed | 2024-12-11T16:56:41Z |
| format | Article |
| id | doaj.art-3a9e68eb3b904b95bfccbdfdb508e547 |
| institution | Directory Open Access Journal |
| issn | 2078-8665 2411-7986 |
| language | Arabic |
| last_indexed | 2024-12-11T16:56:41Z |
| publishDate | 2011-03-01 |
| publisher | College of Science for Women, University of Baghdad |
| record_format | Article |
| series | Baghdad Science Journal |
| spelling | doaj.art-3a9e68eb3b904b95bfccbdfdb508e5472022-12-22T00:57:57ZaraCollege of Science for Women, University of BaghdadBaghdad Science Journal2078-86652411-79862011-03-018110.21123/bsj.8.1.148-154Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated compositesBaghdad Science JournalThis paper reports a.c., d.c. conductivity and dielectric behavior of Ep-hybrid composite with12 Vol.% Kevlar-Carbon hybrid . D.C. conductivity measurements are conducted on the graded composites by using an electrometer over the temperature range from (293-413) K. It was shown then that conductivity increases by increasing number of Kevlar –Carbon fiber layers (Ep1, Ep2, Ep3), due to the high electrical conductivity of Carbon fiber. To identify the mechanism governing the conduction, the activation energies at low temperature region (LTR) and at high temperature region (HTR) have been calculated. The activation energy values for hybrid composite decrease with increasing number of fiber layers. The a.c. conductivity was measured over frequency range 100 Hz-1MHz. It was found that? ?(?) values increase with increasing frequency according to the relation ? (?)=Aws . The values of frequency exponent (s) were found to increase with number of layers.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1146Conductive fiber, Epoxy resin, Electrical conductivity, Kevlar-Carbon fiber. |
| spellingShingle | Baghdad Science Journal Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites Baghdad Science Journal Conductive fiber, Epoxy resin, Electrical conductivity, Kevlar-Carbon fiber. |
| title | Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites |
| title_full | Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites |
| title_fullStr | Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites |
| title_full_unstemmed | Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites |
| title_short | Electrical and dielectric properties of kevlar - carbon hybrid fiber / epoxy laminated composites |
| title_sort | electrical and dielectric properties of kevlar carbon hybrid fiber epoxy laminated composites |
| topic | Conductive fiber, Epoxy resin, Electrical conductivity, Kevlar-Carbon fiber. |
| url | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/1146 |
| work_keys_str_mv | AT baghdadsciencejournal electricalanddielectricpropertiesofkevlarcarbonhybridfiberepoxylaminatedcomposites |