Synthesis, structural and electrical properties of Ti modified Bi2Sn2O7 pyrochlore
Polycrystalline ceramic samples of Bi2Sn2−xTixO7 (x=0.00, 0.2, 0.4, 0.6 and 0.8) have been synthesized by standard high temperature solid state reaction method. The effect of homovalent cation (titanium) substitution on the Sn-site on the structural and electrical properties of the pure Bi2Sn2O7 cer...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2012-10, Vol.407 (19), p.3939-3944 |
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| creator | Bala, Indu Barbar, S.K. Roy, M. |
| description | Polycrystalline ceramic samples of Bi2Sn2−xTixO7 (x=0.00, 0.2, 0.4, 0.6 and 0.8) have been synthesized by standard high temperature solid state reaction method. The effect of homovalent cation (titanium) substitution on the Sn-site on the structural and electrical properties of the pure Bi2Sn2O7 ceramic have been studied by X-ray diffraction followed by SEM, dielectric and dc conductivity studies. The structural analysis indicates that the increase of titanium contents do not lead to any secondary phase. The frequency and temperature dependent dielectric studies have been carried out. It is found that the Ti doping reduces the material particle size. The size of the particles are strongly influenced by the addition of titanium to the system. The substitution of Ti for Sn ions affected the degree of disorder and modified the dielectric properties leading to more resistive ceramic compounds. The activation energies of all the compounds were calculated using the relation σ=σ0exp(−Ea/kT). |
| doi_str_mv | 10.1016/j.physb.2012.05.066 |
| format | Article |
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The effect of homovalent cation (titanium) substitution on the Sn-site on the structural and electrical properties of the pure Bi2Sn2O7 ceramic have been studied by X-ray diffraction followed by SEM, dielectric and dc conductivity studies. The structural analysis indicates that the increase of titanium contents do not lead to any secondary phase. The frequency and temperature dependent dielectric studies have been carried out. It is found that the Ti doping reduces the material particle size. The size of the particles are strongly influenced by the addition of titanium to the system. The substitution of Ti for Sn ions affected the degree of disorder and modified the dielectric properties leading to more resistive ceramic compounds. The activation energies of all the compounds were calculated using the relation σ=σ0exp(−Ea/kT).</description><identifier>ISSN: 0921-4526</identifier><identifier>EISSN: 1873-2135</identifier><identifier>DOI: 10.1016/j.physb.2012.05.066</identifier><language>eng</language><publisher>Kidlington: Elsevier B.V</publisher><subject>Cations ; Ceramic ; Ceramics ; Condensed matter ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Conductivity phenomena in semiconductors and insulators ; Dielectric properties ; Doping ; Electrical conductivity ; Electrical properties ; Electronic transport in condensed matter ; Exact sciences and technology ; Low-field transport and mobility; piezoresistance ; Physics ; Sintering ; Tin ; Titanium ; X-ray methods</subject><ispartof>Physica. 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B, Condensed matter</title><description>Polycrystalline ceramic samples of Bi2Sn2−xTixO7 (x=0.00, 0.2, 0.4, 0.6 and 0.8) have been synthesized by standard high temperature solid state reaction method. The effect of homovalent cation (titanium) substitution on the Sn-site on the structural and electrical properties of the pure Bi2Sn2O7 ceramic have been studied by X-ray diffraction followed by SEM, dielectric and dc conductivity studies. The structural analysis indicates that the increase of titanium contents do not lead to any secondary phase. The frequency and temperature dependent dielectric studies have been carried out. It is found that the Ti doping reduces the material particle size. The size of the particles are strongly influenced by the addition of titanium to the system. The substitution of Ti for Sn ions affected the degree of disorder and modified the dielectric properties leading to more resistive ceramic compounds. The activation energies of all the compounds were calculated using the relation σ=σ0exp(−Ea/kT).</description><subject>Cations</subject><subject>Ceramic</subject><subject>Ceramics</subject><subject>Condensed matter</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Conductivity phenomena in semiconductors and insulators</subject><subject>Dielectric properties</subject><subject>Doping</subject><subject>Electrical conductivity</subject><subject>Electrical properties</subject><subject>Electronic transport in condensed matter</subject><subject>Exact sciences and technology</subject><subject>Low-field transport and mobility; piezoresistance</subject><subject>Physics</subject><subject>Sintering</subject><subject>Tin</subject><subject>Titanium</subject><subject>X-ray methods</subject><issn>0921-4526</issn><issn>1873-2135</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLAzEQgIMoWKu_wMteBA_umkc3yR48aPEFhYKt55AmE5qy3V2TrbD_3tQWj84lM_BNZuZD6JrggmDC7zdFtx7iqqCY0AKXBeb8BI2IFCynhJWnaIQrSvJJSfk5uohxg1MQQUboYzE0_Rqij3dZ7MPO9Lug60w3NoMaTB-8SWUX2g5C7yFmrcuWPtu21jsPNnvydNHQuci6IbRmXbcBLtGZ03WEq-M7Rp8vz8vpWz6bv75PH2e5oRXvc8u0wCvBmbVEGCCCWcGwEJhLXKZUltJhKaBylDtOsaB4BULzlTNOyolkY3R7-Ddt97WD2KutjwbqWjfQ7qIiWFJKaFmxhLIDakIbYwCnuuC3OgwJUnuDaqN-Daq9QYVLlQymrpvjAB2TBRd0Y3z8a6WcTqqqmiTu4cBBuvbbQ1DReGgMWB-SQmVb_--cH5zDhzI</recordid><startdate>20121001</startdate><enddate>20121001</enddate><creator>Bala, Indu</creator><creator>Barbar, S.K.</creator><creator>Roy, M.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20121001</creationdate><title>Synthesis, structural and electrical properties of Ti modified Bi2Sn2O7 pyrochlore</title><author>Bala, Indu ; Barbar, S.K. ; Roy, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c296t-d3a70b763dd17ce173d7307706805d73858f087e9f26f620720be7a6bfcf88483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Cations</topic><topic>Ceramic</topic><topic>Ceramics</topic><topic>Condensed matter</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Conductivity phenomena in semiconductors and insulators</topic><topic>Dielectric properties</topic><topic>Doping</topic><topic>Electrical conductivity</topic><topic>Electrical properties</topic><topic>Electronic transport in condensed matter</topic><topic>Exact sciences and technology</topic><topic>Low-field transport and mobility; piezoresistance</topic><topic>Physics</topic><topic>Sintering</topic><topic>Tin</topic><topic>Titanium</topic><topic>X-ray methods</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bala, Indu</creatorcontrib><creatorcontrib>Barbar, S.K.</creatorcontrib><creatorcontrib>Roy, M.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica. B, Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bala, Indu</au><au>Barbar, S.K.</au><au>Roy, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis, structural and electrical properties of Ti modified Bi2Sn2O7 pyrochlore</atitle><jtitle>Physica. B, Condensed matter</jtitle><date>2012-10-01</date><risdate>2012</risdate><volume>407</volume><issue>19</issue><spage>3939</spage><epage>3944</epage><pages>3939-3944</pages><issn>0921-4526</issn><eissn>1873-2135</eissn><abstract>Polycrystalline ceramic samples of Bi2Sn2−xTixO7 (x=0.00, 0.2, 0.4, 0.6 and 0.8) have been synthesized by standard high temperature solid state reaction method. The effect of homovalent cation (titanium) substitution on the Sn-site on the structural and electrical properties of the pure Bi2Sn2O7 ceramic have been studied by X-ray diffraction followed by SEM, dielectric and dc conductivity studies. The structural analysis indicates that the increase of titanium contents do not lead to any secondary phase. The frequency and temperature dependent dielectric studies have been carried out. It is found that the Ti doping reduces the material particle size. The size of the particles are strongly influenced by the addition of titanium to the system. The substitution of Ti for Sn ions affected the degree of disorder and modified the dielectric properties leading to more resistive ceramic compounds. The activation energies of all the compounds were calculated using the relation σ=σ0exp(−Ea/kT).</abstract><cop>Kidlington</cop><pub>Elsevier B.V</pub><doi>10.1016/j.physb.2012.05.066</doi><tpages>6</tpages></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Cations Ceramic Ceramics Condensed matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Conductivity phenomena in semiconductors and insulators Dielectric properties Doping Electrical conductivity Electrical properties Electronic transport in condensed matter Exact sciences and technology Low-field transport and mobility piezoresistance Physics Sintering Tin Titanium X-ray methods |
| title | Synthesis, structural and electrical properties of Ti modified Bi2Sn2O7 pyrochlore |
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