Development, characterization, sintering, dielectric and optical properties of NdBa2ZrO5·5 nanocrystals
Nanocrystalline NdBa 2 ZrO 5 ·5 has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. T...
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| Veröffentlicht in: | Bulletin of materials science 2012-12, Vol.35 (7), p.1039-1045 |
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| creator | KUMAR, V RATHEESH WARIAR, P R S PAZHANI, R THOMAS, J K JOSE, R KOSHY, J |
| description | Nanocrystalline NdBa
2
ZrO
5 ·5
has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7
m. Dielectric constant (
ε
r
) of NdBa
2
ZrO
5·5
at 5 MHz is 29·6 and loss factor (tan
δ
) is 4 ×10
− 2
at room temperature. |
| doi_str_mv | 10.1007/s12034-012-0407-2 |
| format | Article |
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2
ZrO
5 ·5
has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7
m. Dielectric constant (
ε
r
) of NdBa
2
ZrO
5·5
at 5 MHz is 29·6 and loss factor (tan
δ
) is 4 ×10
− 2
at room temperature.</description><identifier>ISSN: 0250-4707</identifier><identifier>EISSN: 0973-7669</identifier><identifier>DOI: 10.1007/s12034-012-0407-2</identifier><language>eng</language><publisher>India: Springer-Verlag</publisher><subject>Chemistry and Materials Science ; Engineering ; Materials Science ; Nanocrystals</subject><ispartof>Bulletin of materials science, 2012-12, Vol.35 (7), p.1039-1045</ispartof><rights>Indian Academy of Sciences 2012</rights><rights>Indian Academy of Sciences 2012.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2742-c9e822648c20006ca38eda8ce938630c77d9a7998adf1bd9e5dcbd0988ab00243</citedby><cites>FETCH-LOGICAL-c2742-c9e822648c20006ca38eda8ce938630c77d9a7998adf1bd9e5dcbd0988ab00243</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/1403470442/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/1403470442?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,778,782,21375,27911,27912,33731,41475,42544,43792,51306,64370,64374,72224,74057</link.rule.ids></links><search><creatorcontrib>KUMAR, V RATHEESH</creatorcontrib><creatorcontrib>WARIAR, P R S</creatorcontrib><creatorcontrib>PAZHANI, R</creatorcontrib><creatorcontrib>THOMAS, J K</creatorcontrib><creatorcontrib>JOSE, R</creatorcontrib><creatorcontrib>KOSHY, J</creatorcontrib><title>Development, characterization, sintering, dielectric and optical properties of NdBa2ZrO5·5 nanocrystals</title><title>Bulletin of materials science</title><addtitle>Bull Mater Sci</addtitle><description>Nanocrystalline NdBa
2
ZrO
5 ·5
has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7
m. Dielectric constant (
ε
r
) of NdBa
2
ZrO
5·5
at 5 MHz is 29·6 and loss factor (tan
δ
) is 4 ×10
− 2
at room temperature.</description><subject>Chemistry and Materials Science</subject><subject>Engineering</subject><subject>Materials Science</subject><subject>Nanocrystals</subject><issn>0250-4707</issn><issn>0973-7669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kD9PwzAQxSMEEqXwAdgssdZwdpw4HqH8lSq6wMJiufaFpkqTYBuk8sXY-WQkCgML07uT3nt3-iXJKYNzBiAvAuOQCgqMUxAgKd9LJqBkSmWeq_1-5hlQIUEeJkchbACYEoJNkvU1fmDddlts4ozYtfHGRvTVp4lV28xIqJphbV5nxFVYo42-ssQ0jrRdrKypSefbDn2sMJC2JI_uyvAXv8y-vzLSmKa1fheiqcNxclD2gie_Ok2eb2-e5vd0sbx7mF8uqOVScGoVFpznorAcAHJr0gKdKSyqtMhTsFI6ZaRShXElWzmFmbMrB6oozAqAi3SanI29_V9v7xii3rTvvulPaiZ6RBKE4L2LjS7r2xA8lrrz1db4nWagB6B6BKp7oHoAqocMHzOhG4Cg_9P8b-gHqfN52A</recordid><startdate>201212</startdate><enddate>201212</enddate><creator>KUMAR, V RATHEESH</creator><creator>WARIAR, P R S</creator><creator>PAZHANI, R</creator><creator>THOMAS, J K</creator><creator>JOSE, R</creator><creator>KOSHY, J</creator><general>Springer-Verlag</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><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>201212</creationdate><title>Development, characterization, sintering, dielectric and optical properties of NdBa2ZrO5·5 nanocrystals</title><author>KUMAR, V RATHEESH ; WARIAR, P R S ; PAZHANI, R ; THOMAS, J K ; JOSE, R ; KOSHY, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2742-c9e822648c20006ca38eda8ce938630c77d9a7998adf1bd9e5dcbd0988ab00243</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Chemistry and Materials Science</topic><topic>Engineering</topic><topic>Materials Science</topic><topic>Nanocrystals</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KUMAR, V RATHEESH</creatorcontrib><creatorcontrib>WARIAR, P R S</creatorcontrib><creatorcontrib>PAZHANI, R</creatorcontrib><creatorcontrib>THOMAS, J K</creatorcontrib><creatorcontrib>JOSE, R</creatorcontrib><creatorcontrib>KOSHY, J</creatorcontrib><collection>CrossRef</collection><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 (ProQuest)</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>KUMAR, V RATHEESH</au><au>WARIAR, P R S</au><au>PAZHANI, R</au><au>THOMAS, J K</au><au>JOSE, R</au><au>KOSHY, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Development, characterization, sintering, dielectric and optical properties of NdBa2ZrO5·5 nanocrystals</atitle><jtitle>Bulletin of materials science</jtitle><stitle>Bull Mater Sci</stitle><date>2012-12</date><risdate>2012</risdate><volume>35</volume><issue>7</issue><spage>1039</spage><epage>1045</epage><pages>1039-1045</pages><issn>0250-4707</issn><eissn>0973-7669</eissn><abstract>Nanocrystalline NdBa
2
ZrO
5 ·5
has been successfully synthesized through a single step auto-ignition combustion route for the first time. X-ray diffraction and Fourier transform infrared spectroscopy revealed that the combustion product is phase pure and has an ordered cubic perovskite structure. The phase transitions and thermal stability of the nanopowder were investigated by differential thermal and thermogravimetric analyses. Transmission electron microscopy results indicated that the particle sizes are 20–30 nm. Selected area electron diffraction pattern has shown that as-prepared powder is polycrystalline in nature. The optical absorption spectra analysis confirmed that the material falls to the semiconducting range with a bandgap of ~3 ·69 eV and therefore, could be used as transparent wide bandgap semiconductor. The relative density of the sintered sample is ~96% at 1510 °C for 2 h. The surface morphology of the sintered pellet has been studied by scanning electron microscopy and the average grain size observed is ~0·7
m. Dielectric constant (
ε
r
) of NdBa
2
ZrO
5·5
at 5 MHz is 29·6 and loss factor (tan
δ
) is 4 ×10
− 2
at room temperature.</abstract><cop>India</cop><pub>Springer-Verlag</pub><doi>10.1007/s12034-012-0407-2</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Bulletin of materials science, 2012-12, Vol.35 (7), p.1039-1045 |
| issn | 0250-4707 0973-7669 |
| language | eng |
| recordid | cdi_proquest_journals_1403470442 |
| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Indian Academy of Sciences; Springer Nature - Complete Springer Journals; ProQuest Central UK/Ireland; Free Full-Text Journals in Chemistry; ProQuest Central |
| subjects | Chemistry and Materials Science Engineering Materials Science Nanocrystals |
| title | Development, characterization, sintering, dielectric and optical properties of NdBa2ZrO5·5 nanocrystals |
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