Dielectric relaxation behaviour of Sr2SbMnO6 ceramics fabricated from nanocrystalline powders prepared by molten salt synthesis
. Double perovskite polycrystalline single phase and dense Sr 2 SbMnO 6 (SSM) ceramics, fabricated using the nanocrystalline powders synthesized by molten salt method, exhibited high dielectric constant with low dielectric loss as compared to that of SSM ceramics obtained from the powders prepared b...
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| Veröffentlicht in: | Bulletin of materials science 2011-02, Vol.34 (1), p.53-60 |
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| creator | BARAL, ANTARA MEHER, K R S PREETHI VARMA, K B R |
| description | .
Double perovskite polycrystalline single phase and dense Sr
2
SbMnO
6
(SSM) ceramics, fabricated using the nanocrystalline powders synthesized by molten salt method, exhibited high dielectric constant with low dielectric loss as compared to that of SSM ceramics obtained from the powders prepared by solid-state synthesis method. The dielectric data obtained over a wide frequency (100 Hz–1 MHz) and temperature (190 K–300 K) ranges exhibited distinct relaxations owing to both the grain and grain boundary. The dielectric dispersion was modeled using the Cole–Cole equation consisting of two separate relaxation terms corresponding to the grain and grain boundary. The grain and grain boundary relaxations observed in the Nyquist plots (
Z
′
and
Z
″
) were modeled by an equivalent circuit consisting of two parallel RC circuits connected in series with each other. A careful analysis of both the impedance (
Z
″
vs
ω
) and modulus (
M
″
vs
ω
) behaviour corroborated the conclusions drawn from the dielectric data. |
| doi_str_mv | 10.1007/s12034-011-0034-3 |
| format | Article |
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Double perovskite polycrystalline single phase and dense Sr
2
SbMnO
6
(SSM) ceramics, fabricated using the nanocrystalline powders synthesized by molten salt method, exhibited high dielectric constant with low dielectric loss as compared to that of SSM ceramics obtained from the powders prepared by solid-state synthesis method. The dielectric data obtained over a wide frequency (100 Hz–1 MHz) and temperature (190 K–300 K) ranges exhibited distinct relaxations owing to both the grain and grain boundary. The dielectric dispersion was modeled using the Cole–Cole equation consisting of two separate relaxation terms corresponding to the grain and grain boundary. The grain and grain boundary relaxations observed in the Nyquist plots (
Z
′
and
Z
″
) were modeled by an equivalent circuit consisting of two parallel RC circuits connected in series with each other. A careful analysis of both the impedance (
Z
″
vs
ω
) and modulus (
M
″
vs
ω
) behaviour corroborated the conclusions drawn from the dielectric data.</description><identifier>ISSN: 0250-4707</identifier><identifier>EISSN: 0973-7669</identifier><identifier>DOI: 10.1007/s12034-011-0034-3</identifier><language>eng</language><publisher>India: Springer-Verlag</publisher><subject>Ceramics ; Chemistry and Materials Science ; Dielectric loss ; Dielectric relaxation ; Drawing dies ; Engineering ; Equivalent circuits ; Grain boundaries ; Materials Science ; Molten salts ; Nyquist plots ; Perovskites ; RC circuits ; Synthesis</subject><ispartof>Bulletin of materials science, 2011-02, Vol.34 (1), p.53-60</ispartof><rights>Indian Academy of Sciences 2011</rights><rights>Indian Academy of Sciences 2011.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s12034-011-0034-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s12034-011-0034-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>BARAL, ANTARA</creatorcontrib><creatorcontrib>MEHER, K R S PREETHI</creatorcontrib><creatorcontrib>VARMA, K B R</creatorcontrib><title>Dielectric relaxation behaviour of Sr2SbMnO6 ceramics fabricated from nanocrystalline powders prepared by molten salt synthesis</title><title>Bulletin of materials science</title><addtitle>Bull Mater Sci</addtitle><description>.
Double perovskite polycrystalline single phase and dense Sr
2
SbMnO
6
(SSM) ceramics, fabricated using the nanocrystalline powders synthesized by molten salt method, exhibited high dielectric constant with low dielectric loss as compared to that of SSM ceramics obtained from the powders prepared by solid-state synthesis method. The dielectric data obtained over a wide frequency (100 Hz–1 MHz) and temperature (190 K–300 K) ranges exhibited distinct relaxations owing to both the grain and grain boundary. The dielectric dispersion was modeled using the Cole–Cole equation consisting of two separate relaxation terms corresponding to the grain and grain boundary. The grain and grain boundary relaxations observed in the Nyquist plots (
Z
′
and
Z
″
) were modeled by an equivalent circuit consisting of two parallel RC circuits connected in series with each other. A careful analysis of both the impedance (
Z
″
vs
ω
) and modulus (
M
″
vs
ω
) behaviour corroborated the conclusions drawn from the dielectric data.</description><subject>Ceramics</subject><subject>Chemistry and Materials Science</subject><subject>Dielectric loss</subject><subject>Dielectric relaxation</subject><subject>Drawing dies</subject><subject>Engineering</subject><subject>Equivalent circuits</subject><subject>Grain boundaries</subject><subject>Materials Science</subject><subject>Molten salts</subject><subject>Nyquist plots</subject><subject>Perovskites</subject><subject>RC circuits</subject><subject>Synthesis</subject><issn>0250-4707</issn><issn>0973-7669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpFkMtOwzAQRSMEEqXwAews9oEZv5IsUXlKRV0U1pHtONRV6gTbBbri10lVJFZzF-fOaE6WXSJcI0BxE5EC4zkg5rAP7CibQFWwvJCyOh4zFZDzAorT7CzGNQBWnOMk-7lztrMmBWdIsJ36Vsn1nmi7Up-u3wbSt2QZ6FK_-IUkxga1cSaSVumxoZJtSBv6DfHK9ybsYlJd57wlQ__V2BDJEOygwkjpHdn0XbKeRNUlEnc-rWx08Tw7aVUX7cXfnGZvD_evs6d8vnh8nt3O84FSkXLDJRhDG2MKBsgaUWqlKDKmObYcNdUSdSEkmpJb0TBgDS1Fg9RWBqEUbJpdHfYOof_Y2pjq9fidH0_WZSm4lBRhhOgBikNw_t2Gfwih3nuuD57r0XO991wz9gtVC3KZ</recordid><startdate>20110201</startdate><enddate>20110201</enddate><creator>BARAL, ANTARA</creator><creator>MEHER, K R S PREETHI</creator><creator>VARMA, K B R</creator><general>Springer-Verlag</general><general>Springer Nature B.V</general><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20110201</creationdate><title>Dielectric relaxation behaviour of Sr2SbMnO6 ceramics fabricated from nanocrystalline powders prepared by molten salt synthesis</title><author>BARAL, ANTARA ; MEHER, K R S PREETHI ; VARMA, K B R</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p225t-c460cc2dcc73013d58baa2133b41f41b2b61b7561c84e5d303d285d12e9c10853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Ceramics</topic><topic>Chemistry and Materials Science</topic><topic>Dielectric loss</topic><topic>Dielectric relaxation</topic><topic>Drawing dies</topic><topic>Engineering</topic><topic>Equivalent circuits</topic><topic>Grain boundaries</topic><topic>Materials Science</topic><topic>Molten salts</topic><topic>Nyquist plots</topic><topic>Perovskites</topic><topic>RC circuits</topic><topic>Synthesis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>BARAL, ANTARA</creatorcontrib><creatorcontrib>MEHER, K R S PREETHI</creatorcontrib><creatorcontrib>VARMA, K B R</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>Bulletin of materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>BARAL, ANTARA</au><au>MEHER, K R S PREETHI</au><au>VARMA, K B R</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Dielectric relaxation behaviour of Sr2SbMnO6 ceramics fabricated from nanocrystalline powders prepared by molten salt synthesis</atitle><jtitle>Bulletin of materials science</jtitle><stitle>Bull Mater Sci</stitle><date>2011-02-01</date><risdate>2011</risdate><volume>34</volume><issue>1</issue><spage>53</spage><epage>60</epage><pages>53-60</pages><issn>0250-4707</issn><eissn>0973-7669</eissn><abstract>.
Double perovskite polycrystalline single phase and dense Sr
2
SbMnO
6
(SSM) ceramics, fabricated using the nanocrystalline powders synthesized by molten salt method, exhibited high dielectric constant with low dielectric loss as compared to that of SSM ceramics obtained from the powders prepared by solid-state synthesis method. The dielectric data obtained over a wide frequency (100 Hz–1 MHz) and temperature (190 K–300 K) ranges exhibited distinct relaxations owing to both the grain and grain boundary. The dielectric dispersion was modeled using the Cole–Cole equation consisting of two separate relaxation terms corresponding to the grain and grain boundary. The grain and grain boundary relaxations observed in the Nyquist plots (
Z
′
and
Z
″
) were modeled by an equivalent circuit consisting of two parallel RC circuits connected in series with each other. A careful analysis of both the impedance (
Z
″
vs
ω
) and modulus (
M
″
vs
ω
) behaviour corroborated the conclusions drawn from the dielectric data.</abstract><cop>India</cop><pub>Springer-Verlag</pub><doi>10.1007/s12034-011-0034-3</doi><tpages>8</tpages></addata></record> |
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| ispartof | Bulletin of materials science, 2011-02, Vol.34 (1), p.53-60 |
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| language | eng |
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| source | SpringerNature Journals; Indian Academy of Sciences; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | Ceramics Chemistry and Materials Science Dielectric loss Dielectric relaxation Drawing dies Engineering Equivalent circuits Grain boundaries Materials Science Molten salts Nyquist plots Perovskites RC circuits Synthesis |
| title | Dielectric relaxation behaviour of Sr2SbMnO6 ceramics fabricated from nanocrystalline powders prepared by molten salt synthesis |
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