Electrical relaxations in polymeric particulate composites of epoxy resin and metal particles
Composites of epoxy resins and nickel particles in various amounts were prepared and their dielectric spectra were measured in the frequency range 5 Hz–13 MHz and temperature interval from ambient to 140°C. The formalism of electric modulus proved to be efficient in analysing and interpreting obtain...
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| Veröffentlicht in: | Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2002-03, Vol.33 (3), p.375-384 |
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| container_title | Composites. Part A, Applied science and manufacturing |
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| creator | Psarras, G.C Manolakaki, E Tsangaris, G.M |
| description | Composites of epoxy resins and nickel particles in various amounts were prepared and their dielectric spectra were measured in the frequency range 5
Hz–13
MHz and temperature interval from ambient to 140°C.
The formalism of electric modulus proved to be efficient in analysing and interpreting obtained data.
For these composites two relaxation processes are revealed in the frequency range and temperature interval of the measurements.
One is an interfacial dielectric relaxation (Maxwell–Wagner–Sillars), MWS and the other is a conductivity relaxation. They both follow the Cole–Davidson approach with the exponent
γ reflecting a distribution of relaxation times with the characteristics of each process.
AC conductivity of these composites is frequency and temperature dependant, it generally follows the exponential law
σ
ac∼
ω
s and reveals a conductivity relaxation process, in the low frequencies. |
| doi_str_mv | 10.1016/S1359-835X(01)00117-8 |
| format | Article |
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Hz–13
MHz and temperature interval from ambient to 140°C.
The formalism of electric modulus proved to be efficient in analysing and interpreting obtained data.
For these composites two relaxation processes are revealed in the frequency range and temperature interval of the measurements.
One is an interfacial dielectric relaxation (Maxwell–Wagner–Sillars), MWS and the other is a conductivity relaxation. They both follow the Cole–Davidson approach with the exponent
γ reflecting a distribution of relaxation times with the characteristics of each process.
AC conductivity of these composites is frequency and temperature dependant, it generally follows the exponential law
σ
ac∼
ω
s and reveals a conductivity relaxation process, in the low frequencies.</description><identifier>ISSN: 1359-835X</identifier><identifier>EISSN: 1878-5840</identifier><identifier>DOI: 10.1016/S1359-835X(01)00117-8</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Applied sciences ; B. Interface ; Composites ; Exact sciences and technology ; Forms of application and semi-finished materials ; Permittivity ; Polymer industry, paints, wood ; Technology of polymers</subject><ispartof>Composites. Part A, Applied science and manufacturing, 2002-03, Vol.33 (3), p.375-384</ispartof><rights>2002 Elsevier Science Ltd</rights><rights>2002 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c434t-5ae1c94b926c8dea2dbffa0105e3bd978faebad895f7b665b8447ceee95b6eb13</citedby><cites>FETCH-LOGICAL-c434t-5ae1c94b926c8dea2dbffa0105e3bd978faebad895f7b665b8447ceee95b6eb13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S1359-835X(01)00117-8$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=13479856$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Psarras, G.C</creatorcontrib><creatorcontrib>Manolakaki, E</creatorcontrib><creatorcontrib>Tsangaris, G.M</creatorcontrib><title>Electrical relaxations in polymeric particulate composites of epoxy resin and metal particles</title><title>Composites. Part A, Applied science and manufacturing</title><description>Composites of epoxy resins and nickel particles in various amounts were prepared and their dielectric spectra were measured in the frequency range 5
Hz–13
MHz and temperature interval from ambient to 140°C.
The formalism of electric modulus proved to be efficient in analysing and interpreting obtained data.
For these composites two relaxation processes are revealed in the frequency range and temperature interval of the measurements.
One is an interfacial dielectric relaxation (Maxwell–Wagner–Sillars), MWS and the other is a conductivity relaxation. They both follow the Cole–Davidson approach with the exponent
γ reflecting a distribution of relaxation times with the characteristics of each process.
AC conductivity of these composites is frequency and temperature dependant, it generally follows the exponential law
σ
ac∼
ω
s and reveals a conductivity relaxation process, in the low frequencies.</description><subject>Applied sciences</subject><subject>B. Interface</subject><subject>Composites</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Permittivity</subject><subject>Polymer industry, paints, wood</subject><subject>Technology of polymers</subject><issn>1359-835X</issn><issn>1878-5840</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-BKEXRQ_VpE3a5CSyrB-w4EEFLxLSdAqRtKlJVnb_vdldxaOnTJhn3mEehE4JviKYVNfPpGQi5yV7u8DkEmNC6pzvoQnhNc8Zp3g_1b_IIToK4QNjXJaCTND73IKO3mhlMw9WrVQ0bgiZGbLR2XUPqZWNykejl1ZFyLTrRxdMhJC5LoPRrdZpMCReDW3WQ0xBO95COEYHnbIBTn7eKXq9m7_MHvLF0_3j7HaRa1rSmDMFRAvaiKLSvAVVtE3XKUwwg7JpRc07BY1quWBd3VQVaziltQYAwZoKGlJO0fkud_Tucwkhyt4EDdaqAdwyyKImvKCiSiDbgdq7EDx0cvSmV34tCZYbmXIrU25MSUzkVmb6TdHZzwIVkqrOq0Gb8Ddc0lpwtsm_2XGQrv0y4GXQBgYNrfHJs2yd-WfTN_asjKU</recordid><startdate>200203</startdate><enddate>200203</enddate><creator>Psarras, G.C</creator><creator>Manolakaki, E</creator><creator>Tsangaris, G.M</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>200203</creationdate><title>Electrical relaxations in polymeric particulate composites of epoxy resin and metal particles</title><author>Psarras, G.C ; Manolakaki, E ; Tsangaris, G.M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c434t-5ae1c94b926c8dea2dbffa0105e3bd978faebad895f7b665b8447ceee95b6eb13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Applied sciences</topic><topic>B. Interface</topic><topic>Composites</topic><topic>Exact sciences and technology</topic><topic>Forms of application and semi-finished materials</topic><topic>Permittivity</topic><topic>Polymer industry, paints, wood</topic><topic>Technology of polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Psarras, G.C</creatorcontrib><creatorcontrib>Manolakaki, E</creatorcontrib><creatorcontrib>Tsangaris, G.M</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>Composites. Part A, Applied science and manufacturing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Psarras, G.C</au><au>Manolakaki, E</au><au>Tsangaris, G.M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrical relaxations in polymeric particulate composites of epoxy resin and metal particles</atitle><jtitle>Composites. Part A, Applied science and manufacturing</jtitle><date>2002-03</date><risdate>2002</risdate><volume>33</volume><issue>3</issue><spage>375</spage><epage>384</epage><pages>375-384</pages><issn>1359-835X</issn><eissn>1878-5840</eissn><abstract>Composites of epoxy resins and nickel particles in various amounts were prepared and their dielectric spectra were measured in the frequency range 5
Hz–13
MHz and temperature interval from ambient to 140°C.
The formalism of electric modulus proved to be efficient in analysing and interpreting obtained data.
For these composites two relaxation processes are revealed in the frequency range and temperature interval of the measurements.
One is an interfacial dielectric relaxation (Maxwell–Wagner–Sillars), MWS and the other is a conductivity relaxation. They both follow the Cole–Davidson approach with the exponent
γ reflecting a distribution of relaxation times with the characteristics of each process.
AC conductivity of these composites is frequency and temperature dependant, it generally follows the exponential law
σ
ac∼
ω
s and reveals a conductivity relaxation process, in the low frequencies.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S1359-835X(01)00117-8</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 1359-835X |
| ispartof | Composites. Part A, Applied science and manufacturing, 2002-03, Vol.33 (3), p.375-384 |
| issn | 1359-835X 1878-5840 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Applied sciences B. Interface Composites Exact sciences and technology Forms of application and semi-finished materials Permittivity Polymer industry, paints, wood Technology of polymers |
| title | Electrical relaxations in polymeric particulate composites of epoxy resin and metal particles |
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