Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles
Interfacial dielectric relaxations have been studied in composites made with epoxy resin and copper or iron particles. Over the temperature range reported (20–160 °C) relaxation peaks are formed in the 10-10 3 Hz frequency range. They are attributed to the Maxwell-Wagner-Sillars (MWS), or interfacia...
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| Veröffentlicht in: | Materials chemistry and physics 1996-06, Vol.44 (3), p.245-250 |
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| creator | Tsangaris, G.M. Kouloumbi, N. Kyvelidis, S. |
| description | Interfacial dielectric relaxations have been studied in composites made with epoxy resin and copper or iron particles. Over the temperature range reported (20–160 °C) relaxation peaks are formed in the 10-10
3 Hz frequency range. They are attributed to the Maxwell-Wagner-Sillars (MWS), or interfacial, polarization effect, created in heterogeneous dielectrics. The observed MWS loss peaks shift to lower frequencies if the content of the composites in the metal particles is increased. From the temperature dependence of relaxation frequency, the activation energy for the process is estimated to be 45 kJ mol
−1 (0.4 eV). Dielectric losses of the composites in the 10-10
3 Hz frequency range can be regarded as the sum of losses from a Debye-type relaxation and of the conductivity term
σ
ω
. Interfacial dielectric losses are insignificant at high frequencies. |
| doi_str_mv | 10.1016/0254-0584(96)80063-0 |
| format | Article |
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3 Hz frequency range. They are attributed to the Maxwell-Wagner-Sillars (MWS), or interfacial, polarization effect, created in heterogeneous dielectrics. The observed MWS loss peaks shift to lower frequencies if the content of the composites in the metal particles is increased. From the temperature dependence of relaxation frequency, the activation energy for the process is estimated to be 45 kJ mol
−1 (0.4 eV). Dielectric losses of the composites in the 10-10
3 Hz frequency range can be regarded as the sum of losses from a Debye-type relaxation and of the conductivity term
σ
ω
. Interfacial dielectric losses are insignificant at high frequencies.</description><identifier>ISSN: 0254-0584</identifier><identifier>EISSN: 1879-3312</identifier><identifier>DOI: 10.1016/0254-0584(96)80063-0</identifier><identifier>CODEN: MCHPDR</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Composite materials ; Composites ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Dielectric, piezoelectric, ferroelectric and antiferroelectric materials ; Dielectrics ; Dielectrics, piezoelectrics, and ferroelectrics and their properties ; Exact sciences and technology ; Interfacial phenomena ; Metal fillers ; Physics ; Relaxation</subject><ispartof>Materials chemistry and physics, 1996-06, Vol.44 (3), p.245-250</ispartof><rights>1996</rights><rights>1996 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c364t-a25318f16e7f5535faa33eb37b756d1ca52556e1a3a03f44f4b2aa7b051c3cbf3</citedby><cites>FETCH-LOGICAL-c364t-a25318f16e7f5535faa33eb37b756d1ca52556e1a3a03f44f4b2aa7b051c3cbf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/0254-0584(96)80063-0$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3142769$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Tsangaris, G.M.</creatorcontrib><creatorcontrib>Kouloumbi, N.</creatorcontrib><creatorcontrib>Kyvelidis, S.</creatorcontrib><title>Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles</title><title>Materials chemistry and physics</title><description>Interfacial dielectric relaxations have been studied in composites made with epoxy resin and copper or iron particles. Over the temperature range reported (20–160 °C) relaxation peaks are formed in the 10-10
3 Hz frequency range. They are attributed to the Maxwell-Wagner-Sillars (MWS), or interfacial, polarization effect, created in heterogeneous dielectrics. The observed MWS loss peaks shift to lower frequencies if the content of the composites in the metal particles is increased. From the temperature dependence of relaxation frequency, the activation energy for the process is estimated to be 45 kJ mol
−1 (0.4 eV). Dielectric losses of the composites in the 10-10
3 Hz frequency range can be regarded as the sum of losses from a Debye-type relaxation and of the conductivity term
σ
ω
. Interfacial dielectric losses are insignificant at high frequencies.</description><subject>Composite materials</subject><subject>Composites</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Dielectric, piezoelectric, ferroelectric and antiferroelectric materials</subject><subject>Dielectrics</subject><subject>Dielectrics, piezoelectrics, and ferroelectrics and their properties</subject><subject>Exact sciences and technology</subject><subject>Interfacial phenomena</subject><subject>Metal fillers</subject><subject>Physics</subject><subject>Relaxation</subject><issn>0254-0584</issn><issn>1879-3312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKv_wMMeRPSwmo9NdnsRpPhRKHjRc5hNJzay3axJqu2_d2trj56GYZ53hnkIOWf0hlGmbimXRU5lVVyN1HVFqRI5PSADVpWjXAjGD8lgjxyTkxg_KGUlY2JA3idtwmDBOGiygA2sIDnfZt0cW7_AFjLXNxCSM8sGEmbGLzofXcKYeZth51frPhd76tuleT_uOgyZD5kL_i_ZYDwlRxaaiGe7OiRvjw-v4-d8-vI0Gd9PcyNUkXLgUrDKMoWllVJICyAE1qKsS6lmzIDkUipkIIAKWxS2qDlAWVPJjDC1FUNyud3bBf-5xJj0wkWDTQMt-mXUXPGyqjjrwWILmuBjDGh1F9wCwlozqjdW9UaZ3ijTI6V_rWraxy52-yEaaGyA1ri4zwpW8FKNeuxui2H_65fDoKNx2BqcuYAm6Zl3_9_5ATfDjUE</recordid><startdate>19960601</startdate><enddate>19960601</enddate><creator>Tsangaris, G.M.</creator><creator>Kouloumbi, N.</creator><creator>Kyvelidis, S.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19960601</creationdate><title>Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles</title><author>Tsangaris, G.M. ; Kouloumbi, N. ; Kyvelidis, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-a25318f16e7f5535faa33eb37b756d1ca52556e1a3a03f44f4b2aa7b051c3cbf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Composite materials</topic><topic>Composites</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Dielectric, piezoelectric, ferroelectric and antiferroelectric materials</topic><topic>Dielectrics</topic><topic>Dielectrics, piezoelectrics, and ferroelectrics and their properties</topic><topic>Exact sciences and technology</topic><topic>Interfacial phenomena</topic><topic>Metal fillers</topic><topic>Physics</topic><topic>Relaxation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsangaris, G.M.</creatorcontrib><creatorcontrib>Kouloumbi, N.</creatorcontrib><creatorcontrib>Kyvelidis, S.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials chemistry and physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsangaris, G.M.</au><au>Kouloumbi, N.</au><au>Kyvelidis, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles</atitle><jtitle>Materials chemistry and physics</jtitle><date>1996-06-01</date><risdate>1996</risdate><volume>44</volume><issue>3</issue><spage>245</spage><epage>250</epage><pages>245-250</pages><issn>0254-0584</issn><eissn>1879-3312</eissn><coden>MCHPDR</coden><abstract>Interfacial dielectric relaxations have been studied in composites made with epoxy resin and copper or iron particles. Over the temperature range reported (20–160 °C) relaxation peaks are formed in the 10-10
3 Hz frequency range. They are attributed to the Maxwell-Wagner-Sillars (MWS), or interfacial, polarization effect, created in heterogeneous dielectrics. The observed MWS loss peaks shift to lower frequencies if the content of the composites in the metal particles is increased. From the temperature dependence of relaxation frequency, the activation energy for the process is estimated to be 45 kJ mol
−1 (0.4 eV). Dielectric losses of the composites in the 10-10
3 Hz frequency range can be regarded as the sum of losses from a Debye-type relaxation and of the conductivity term
σ
ω
. Interfacial dielectric losses are insignificant at high frequencies.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/0254-0584(96)80063-0</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials chemistry and physics, 1996-06, Vol.44 (3), p.245-250 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Composite materials Composites Condensed matter: electronic structure, electrical, magnetic, and optical properties Dielectric, piezoelectric, ferroelectric and antiferroelectric materials Dielectrics Dielectrics, piezoelectrics, and ferroelectrics and their properties Exact sciences and technology Interfacial phenomena Metal fillers Physics Relaxation |
| title | Interfacial relaxation phenomena in particulate composites of epoxy resin with copper or iron particles |
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