Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method
Y-type hexaferrite Sr 2 Co 2 La x Fe 12−x O 22 (x = 0.0, 0.05, 0.10, 0.15, 0.20) powders have been synthesized using the sol–gel autocombustion method. Differential Scanning Calorimetry, Thermogravimetry, Fourier Transform Infra-Red spectroscopy, X-ray diffraction, scanning electron microscopy, ener...
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| Veröffentlicht in: | Journal of sol-gel science and technology 2013-10, Vol.68 (1), p.141-149 |
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| creator | Ali, Ihsan Ahmad, Mukhtar Islam, M. U. Awan, M. S. |
| description | Y-type hexaferrite Sr
2
Co
2
La
x
Fe
12−x
O
22
(x = 0.0, 0.05, 0.10, 0.15, 0.20) powders have been synthesized using the sol–gel autocombustion method. Differential Scanning Calorimetry, Thermogravimetry, Fourier Transform Infra-Red spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometery were used to investigate the samples. XRD patterns confirm the formation of Y-type hexaferrite phase. SEM patterns show that mostly grains exhibit rod shape and some appear in the form of hexagonal platelet shape. The rod or rice shape hexaferrite may be used in catalysis, information storage, surface enhanced Raman scattering, imaging and sensing. The samples with hexagonal platelet-like shape particles may be suitable as microwave absorbing materials. The energy dispersive X-ray spectroscopy spectrum shows the presence of dissolved reactants Sr, Co, La and Fe. The saturation magnetization (M
s
) calculated using the law of approach to saturation decrease with the increasing of lanthanum (La
3+
) contents. The decrease in ‘M
s
’ may be because of magnetic dilution and spin canting and hence reduction in the super-exchange interactions. The retentivity (M
r
) and coercivity (H
c
) enhance with the increase of La
3+
contents. The enhancement in coercivity from 193 to 598.6 Oe may be because of increase in the porosity of samples with the increase of La
3+
contents. The coercivity of the synthesized materials is few hundred oersteds (Oe), which may be suitable for security, switching, sensing, high frequency applications and is also favorable for electromagnetic materials. |
| doi_str_mv | 10.1007/s10971-013-3146-y |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1506376749</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2259540040</sourcerecordid><originalsourceid>FETCH-LOGICAL-c309t-1bd5171ab91e19c49e064f4697899ee28e313a0a29023fb6fb615a185bcf3f673</originalsourceid><addsrcrecordid>eNp1kc2KFDEUhQtRsB19AHcBEQQpvbeSqlSW0vgHDS7UhauQSt90Z6iqtEkKplz5Bi58Q5_EzPSgIAiBkJvvnHvgVNVjhBcIIF8mBCWxBuQ1R9HV651qg63ktehFd7fagGr6GiTI-9WDlC4BoBUoN9WPj8uQss9L9mFm5BzZnFhwbGf4c1Zm5TGzfCSWclxsXqIZmZn3bDKHmbK37BTDiWL2dCPbhuYLO9KVcRSjz2WY1rnIk_9GezasLIXx1_efByouSw42TMOSbnZPlI9h_7C658yY6NHtfVF9fvP60_Zdvfvw9v321a62HFSucdi3KNEMCgmVFYqgE050SvZKETU9ceQGTKOg4W7oysHWYN8O1nHXSX5RPTv7lvhfF0pZTz5ZGkczU1iSxhY6LjspVEGf_INehiXOJZ1umla1AkBAofBM2RhSiuT0KfrJxFUj6OuK9LkiXSrS1xXptWie3jqbZM3oopmtT3-EjeylaiUWrjlzqXzNB4p_E_zf_DdKDKRC</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2259540040</pqid></control><display><type>article</type><title>Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method</title><source>SpringerNature Journals</source><creator>Ali, Ihsan ; Ahmad, Mukhtar ; Islam, M. U. ; Awan, M. S.</creator><creatorcontrib>Ali, Ihsan ; Ahmad, Mukhtar ; Islam, M. U. ; Awan, M. S.</creatorcontrib><description>Y-type hexaferrite Sr
2
Co
2
La
x
Fe
12−x
O
22
(x = 0.0, 0.05, 0.10, 0.15, 0.20) powders have been synthesized using the sol–gel autocombustion method. Differential Scanning Calorimetry, Thermogravimetry, Fourier Transform Infra-Red spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometery were used to investigate the samples. XRD patterns confirm the formation of Y-type hexaferrite phase. SEM patterns show that mostly grains exhibit rod shape and some appear in the form of hexagonal platelet shape. The rod or rice shape hexaferrite may be used in catalysis, information storage, surface enhanced Raman scattering, imaging and sensing. The samples with hexagonal platelet-like shape particles may be suitable as microwave absorbing materials. The energy dispersive X-ray spectroscopy spectrum shows the presence of dissolved reactants Sr, Co, La and Fe. The saturation magnetization (M
s
) calculated using the law of approach to saturation decrease with the increasing of lanthanum (La
3+
) contents. The decrease in ‘M
s
’ may be because of magnetic dilution and spin canting and hence reduction in the super-exchange interactions. The retentivity (M
r
) and coercivity (H
c
) enhance with the increase of La
3+
contents. The enhancement in coercivity from 193 to 598.6 Oe may be because of increase in the porosity of samples with the increase of La
3+
contents. The coercivity of the synthesized materials is few hundred oersteds (Oe), which may be suitable for security, switching, sensing, high frequency applications and is also favorable for electromagnetic materials.</description><identifier>ISSN: 0928-0707</identifier><identifier>EISSN: 1573-4846</identifier><identifier>DOI: 10.1007/s10971-013-3146-y</identifier><language>eng</language><publisher>Boston: Springer US</publisher><subject>Catalysis ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Coercive force ; Coercivity ; Colloidal gels. Colloidal sols ; Colloidal state and disperse state ; Composites ; Detection ; Dilution ; Energy dispersive X ray spectroscopy ; Exact sciences and technology ; Fourier transforms ; General and physical chemistry ; Glass ; Imaging ; Information storage ; Inorganic Chemistry ; Lanthanum ; Magnetic properties ; Magnetic saturation ; Materials Science ; Microwave absorption ; Nanotechnology ; Natural Materials ; Optical and Electronic Materials ; Original Paper ; Porosity ; Raman spectra ; Scanning electron microscopy ; Sol gel process ; Sol-gel processes ; Spectrum analysis ; Strontium ; Thermogravimetry ; X-ray diffraction</subject><ispartof>Journal of sol-gel science and technology, 2013-10, Vol.68 (1), p.141-149</ispartof><rights>Springer Science+Business Media New York 2013</rights><rights>2014 INIST-CNRS</rights><rights>Journal of Sol-Gel Science and Technology is a copyright of Springer, (2013). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c309t-1bd5171ab91e19c49e064f4697899ee28e313a0a29023fb6fb615a185bcf3f673</citedby><cites>FETCH-LOGICAL-c309t-1bd5171ab91e19c49e064f4697899ee28e313a0a29023fb6fb615a185bcf3f673</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10971-013-3146-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10971-013-3146-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>315,782,786,27931,27932,41495,42564,51326</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27879571$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ali, Ihsan</creatorcontrib><creatorcontrib>Ahmad, Mukhtar</creatorcontrib><creatorcontrib>Islam, M. U.</creatorcontrib><creatorcontrib>Awan, M. S.</creatorcontrib><title>Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method</title><title>Journal of sol-gel science and technology</title><addtitle>J Sol-Gel Sci Technol</addtitle><description>Y-type hexaferrite Sr
2
Co
2
La
x
Fe
12−x
O
22
(x = 0.0, 0.05, 0.10, 0.15, 0.20) powders have been synthesized using the sol–gel autocombustion method. Differential Scanning Calorimetry, Thermogravimetry, Fourier Transform Infra-Red spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometery were used to investigate the samples. XRD patterns confirm the formation of Y-type hexaferrite phase. SEM patterns show that mostly grains exhibit rod shape and some appear in the form of hexagonal platelet shape. The rod or rice shape hexaferrite may be used in catalysis, information storage, surface enhanced Raman scattering, imaging and sensing. The samples with hexagonal platelet-like shape particles may be suitable as microwave absorbing materials. The energy dispersive X-ray spectroscopy spectrum shows the presence of dissolved reactants Sr, Co, La and Fe. The saturation magnetization (M
s
) calculated using the law of approach to saturation decrease with the increasing of lanthanum (La
3+
) contents. The decrease in ‘M
s
’ may be because of magnetic dilution and spin canting and hence reduction in the super-exchange interactions. The retentivity (M
r
) and coercivity (H
c
) enhance with the increase of La
3+
contents. The enhancement in coercivity from 193 to 598.6 Oe may be because of increase in the porosity of samples with the increase of La
3+
contents. The coercivity of the synthesized materials is few hundred oersteds (Oe), which may be suitable for security, switching, sensing, high frequency applications and is also favorable for electromagnetic materials.</description><subject>Catalysis</subject><subject>Ceramics</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Coercive force</subject><subject>Coercivity</subject><subject>Colloidal gels. Colloidal sols</subject><subject>Colloidal state and disperse state</subject><subject>Composites</subject><subject>Detection</subject><subject>Dilution</subject><subject>Energy dispersive X ray spectroscopy</subject><subject>Exact sciences and technology</subject><subject>Fourier transforms</subject><subject>General and physical chemistry</subject><subject>Glass</subject><subject>Imaging</subject><subject>Information storage</subject><subject>Inorganic Chemistry</subject><subject>Lanthanum</subject><subject>Magnetic properties</subject><subject>Magnetic saturation</subject><subject>Materials Science</subject><subject>Microwave absorption</subject><subject>Nanotechnology</subject><subject>Natural Materials</subject><subject>Optical and Electronic Materials</subject><subject>Original Paper</subject><subject>Porosity</subject><subject>Raman spectra</subject><subject>Scanning electron microscopy</subject><subject>Sol gel process</subject><subject>Sol-gel processes</subject><subject>Spectrum analysis</subject><subject>Strontium</subject><subject>Thermogravimetry</subject><subject>X-ray diffraction</subject><issn>0928-0707</issn><issn>1573-4846</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kc2KFDEUhQtRsB19AHcBEQQpvbeSqlSW0vgHDS7UhauQSt90Z6iqtEkKplz5Bi58Q5_EzPSgIAiBkJvvnHvgVNVjhBcIIF8mBCWxBuQ1R9HV651qg63ktehFd7fagGr6GiTI-9WDlC4BoBUoN9WPj8uQss9L9mFm5BzZnFhwbGf4c1Zm5TGzfCSWclxsXqIZmZn3bDKHmbK37BTDiWL2dCPbhuYLO9KVcRSjz2WY1rnIk_9GezasLIXx1_efByouSw42TMOSbnZPlI9h_7C658yY6NHtfVF9fvP60_Zdvfvw9v321a62HFSucdi3KNEMCgmVFYqgE050SvZKETU9ceQGTKOg4W7oysHWYN8O1nHXSX5RPTv7lvhfF0pZTz5ZGkczU1iSxhY6LjspVEGf_INehiXOJZ1umla1AkBAofBM2RhSiuT0KfrJxFUj6OuK9LkiXSrS1xXptWie3jqbZM3oopmtT3-EjeylaiUWrjlzqXzNB4p_E_zf_DdKDKRC</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Ali, Ihsan</creator><creator>Ahmad, Mukhtar</creator><creator>Islam, M. U.</creator><creator>Awan, M. S.</creator><general>Springer US</general><general>Springer</general><general>Springer Nature B.V</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</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>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7QQ</scope><scope>7SR</scope><scope>7U5</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20131001</creationdate><title>Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method</title><author>Ali, Ihsan ; Ahmad, Mukhtar ; Islam, M. U. ; Awan, M. S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c309t-1bd5171ab91e19c49e064f4697899ee28e313a0a29023fb6fb615a185bcf3f673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Catalysis</topic><topic>Ceramics</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Coercive force</topic><topic>Coercivity</topic><topic>Colloidal gels. Colloidal sols</topic><topic>Colloidal state and disperse state</topic><topic>Composites</topic><topic>Detection</topic><topic>Dilution</topic><topic>Energy dispersive X ray spectroscopy</topic><topic>Exact sciences and technology</topic><topic>Fourier transforms</topic><topic>General and physical chemistry</topic><topic>Glass</topic><topic>Imaging</topic><topic>Information storage</topic><topic>Inorganic Chemistry</topic><topic>Lanthanum</topic><topic>Magnetic properties</topic><topic>Magnetic saturation</topic><topic>Materials Science</topic><topic>Microwave absorption</topic><topic>Nanotechnology</topic><topic>Natural Materials</topic><topic>Optical and Electronic Materials</topic><topic>Original Paper</topic><topic>Porosity</topic><topic>Raman spectra</topic><topic>Scanning electron microscopy</topic><topic>Sol gel process</topic><topic>Sol-gel processes</topic><topic>Spectrum analysis</topic><topic>Strontium</topic><topic>Thermogravimetry</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ali, Ihsan</creatorcontrib><creatorcontrib>Ahmad, Mukhtar</creatorcontrib><creatorcontrib>Islam, M. U.</creatorcontrib><creatorcontrib>Awan, M. S.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</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 Science Database</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering 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><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials 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>Journal of sol-gel science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ali, Ihsan</au><au>Ahmad, Mukhtar</au><au>Islam, M. U.</au><au>Awan, M. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method</atitle><jtitle>Journal of sol-gel science and technology</jtitle><stitle>J Sol-Gel Sci Technol</stitle><date>2013-10-01</date><risdate>2013</risdate><volume>68</volume><issue>1</issue><spage>141</spage><epage>149</epage><pages>141-149</pages><issn>0928-0707</issn><eissn>1573-4846</eissn><abstract>Y-type hexaferrite Sr
2
Co
2
La
x
Fe
12−x
O
22
(x = 0.0, 0.05, 0.10, 0.15, 0.20) powders have been synthesized using the sol–gel autocombustion method. Differential Scanning Calorimetry, Thermogravimetry, Fourier Transform Infra-Red spectroscopy, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and vibrating sample magnetometery were used to investigate the samples. XRD patterns confirm the formation of Y-type hexaferrite phase. SEM patterns show that mostly grains exhibit rod shape and some appear in the form of hexagonal platelet shape. The rod or rice shape hexaferrite may be used in catalysis, information storage, surface enhanced Raman scattering, imaging and sensing. The samples with hexagonal platelet-like shape particles may be suitable as microwave absorbing materials. The energy dispersive X-ray spectroscopy spectrum shows the presence of dissolved reactants Sr, Co, La and Fe. The saturation magnetization (M
s
) calculated using the law of approach to saturation decrease with the increasing of lanthanum (La
3+
) contents. The decrease in ‘M
s
’ may be because of magnetic dilution and spin canting and hence reduction in the super-exchange interactions. The retentivity (M
r
) and coercivity (H
c
) enhance with the increase of La
3+
contents. The enhancement in coercivity from 193 to 598.6 Oe may be because of increase in the porosity of samples with the increase of La
3+
contents. The coercivity of the synthesized materials is few hundred oersteds (Oe), which may be suitable for security, switching, sensing, high frequency applications and is also favorable for electromagnetic materials.</abstract><cop>Boston</cop><pub>Springer US</pub><doi>10.1007/s10971-013-3146-y</doi><tpages>9</tpages></addata></record> |
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| subjects | Catalysis Ceramics Chemistry Chemistry and Materials Science Coercive force Coercivity Colloidal gels. Colloidal sols Colloidal state and disperse state Composites Detection Dilution Energy dispersive X ray spectroscopy Exact sciences and technology Fourier transforms General and physical chemistry Glass Imaging Information storage Inorganic Chemistry Lanthanum Magnetic properties Magnetic saturation Materials Science Microwave absorption Nanotechnology Natural Materials Optical and Electronic Materials Original Paper Porosity Raman spectra Scanning electron microscopy Sol gel process Sol-gel processes Spectrum analysis Strontium Thermogravimetry X-ray diffraction |
| title | Substitution effects of La3+ ions on the structural and magnetic properties of Co2Y hexaferrites synthesized by sol–gel autocombustion method |
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