Synthesis of nanocrystalline magnesium titanate by an auto-igniting combustion technique and its structural, spectroscopic and dielectric properties
Nanocrystalline magnesium titanate was synthesized through an auto-ignited combustion method. The phase purity of the powder was examined using X-ray diffraction, thermo gravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy and Raman spectroscopy. The transmiss...
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| Veröffentlicht in: | Materials research bulletin 2010-07, Vol.45 (7), p.761-765 |
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| creator | Suresh, M.K. Thomas, J.K. Sreemoolanadhan, H. George, C.N. John, Annamma Solomon, Sam Wariar, P.R.S. Koshy, J. |
| description | Nanocrystalline magnesium titanate was synthesized through an auto-ignited combustion method. The phase purity of the powder was examined using X-ray diffraction, thermo gravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy and Raman spectroscopy. The transmission electron microscopy study showed that the particle size of the as-prepared powder was in between 20 and 40
nm. The nanopowder could be sintered to 98% of the theoretical density at 1200
°C for 3
h. The microstructure of the sintered surface was examined using scanning electron microscopy. The dielectric constant (
ɛ
r
) of 16.7 and loss factor (tan
δ) of the order of 10
−4 were obtained at 5
MHz when measured using LCR meter. The quality factor (
Q
u
×
f) 73,700 and temperature coefficient of resonant frequency (
τ
f
) −44.3
ppm/°C, at 6.5
GHz are the best reported values for sintered pellets obtained from phase pure nanocrystalline MgTiO
3 powder. |
| doi_str_mv | 10.1016/j.materresbull.2010.03.019 |
| format | Article |
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nm. The nanopowder could be sintered to 98% of the theoretical density at 1200
°C for 3
h. The microstructure of the sintered surface was examined using scanning electron microscopy. The dielectric constant (
ɛ
r
) of 16.7 and loss factor (tan
δ) of the order of 10
−4 were obtained at 5
MHz when measured using LCR meter. The quality factor (
Q
u
×
f) 73,700 and temperature coefficient of resonant frequency (
τ
f
) −44.3
ppm/°C, at 6.5
GHz are the best reported values for sintered pellets obtained from phase pure nanocrystalline MgTiO
3 powder.</description><identifier>ISSN: 0025-5408</identifier><identifier>EISSN: 1873-4227</identifier><identifier>DOI: 10.1016/j.materresbull.2010.03.019</identifier><language>eng</language><publisher>United States: Elsevier Ltd</publisher><subject>A. Ceramics ; A. Nanostructures ; B. Chemical synthesis ; B. Dielectric properties ; C. X-ray diffraction ; CRYSTALS ; DIFFERENTIAL THERMAL ANALYSIS ; FOURIER TRANSFORM SPECTROMETERS ; GRAVIMETRIC ANALYSIS ; MAGNESIUM ; MATERIALS SCIENCE ; MICROSTRUCTURE ; NANOSCIENCE AND NANOTECHNOLOGY ; NANOSTRUCTURES ; PARTICLE SIZE ; PERMITTIVITY ; POWDERS ; QUALITY FACTOR ; RAMAN SPECTROSCOPY ; SCANNING ELECTRON MICROSCOPY ; SYNTHESIS ; TEMPERATURE COEFFICIENT ; TRANSMISSION ELECTRON MICROSCOPY ; X-RAY DIFFRACTION</subject><ispartof>Materials research bulletin, 2010-07, Vol.45 (7), p.761-765</ispartof><rights>2010 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c352t-a01cbeabcf30cc44841824f8522a7033fa712cbe381204b2fe9ec90ce1bf219d3</citedby><cites>FETCH-LOGICAL-c352t-a01cbeabcf30cc44841824f8522a7033fa712cbe381204b2fe9ec90ce1bf219d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0025540810001029$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,314,776,780,881,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22207322$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Suresh, M.K.</creatorcontrib><creatorcontrib>Thomas, J.K.</creatorcontrib><creatorcontrib>Sreemoolanadhan, H.</creatorcontrib><creatorcontrib>George, C.N.</creatorcontrib><creatorcontrib>John, Annamma</creatorcontrib><creatorcontrib>Solomon, Sam</creatorcontrib><creatorcontrib>Wariar, P.R.S.</creatorcontrib><creatorcontrib>Koshy, J.</creatorcontrib><title>Synthesis of nanocrystalline magnesium titanate by an auto-igniting combustion technique and its structural, spectroscopic and dielectric properties</title><title>Materials research bulletin</title><description>Nanocrystalline magnesium titanate was synthesized through an auto-ignited combustion method. The phase purity of the powder was examined using X-ray diffraction, thermo gravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy and Raman spectroscopy. The transmission electron microscopy study showed that the particle size of the as-prepared powder was in between 20 and 40
nm. The nanopowder could be sintered to 98% of the theoretical density at 1200
°C for 3
h. The microstructure of the sintered surface was examined using scanning electron microscopy. The dielectric constant (
ɛ
r
) of 16.7 and loss factor (tan
δ) of the order of 10
−4 were obtained at 5
MHz when measured using LCR meter. The quality factor (
Q
u
×
f) 73,700 and temperature coefficient of resonant frequency (
τ
f
) −44.3
ppm/°C, at 6.5
GHz are the best reported values for sintered pellets obtained from phase pure nanocrystalline MgTiO
3 powder.</description><subject>A. Ceramics</subject><subject>A. Nanostructures</subject><subject>B. Chemical synthesis</subject><subject>B. Dielectric properties</subject><subject>C. X-ray diffraction</subject><subject>CRYSTALS</subject><subject>DIFFERENTIAL THERMAL ANALYSIS</subject><subject>FOURIER TRANSFORM SPECTROMETERS</subject><subject>GRAVIMETRIC ANALYSIS</subject><subject>MAGNESIUM</subject><subject>MATERIALS SCIENCE</subject><subject>MICROSTRUCTURE</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>NANOSTRUCTURES</subject><subject>PARTICLE SIZE</subject><subject>PERMITTIVITY</subject><subject>POWDERS</subject><subject>QUALITY FACTOR</subject><subject>RAMAN SPECTROSCOPY</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>SYNTHESIS</subject><subject>TEMPERATURE COEFFICIENT</subject><subject>TRANSMISSION ELECTRON MICROSCOPY</subject><subject>X-RAY DIFFRACTION</subject><issn>0025-5408</issn><issn>1873-4227</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNkcFu1DAQhi3USmwL72DBlSzjcZZkuaFCS6VKPVDOljOZbL1K7GA7SPsePDAOy4Ejp5Fnvpn_t34h3ijYKlAf3h-3k80cI6duGcctQhmA3oLavxAb1Ta6qhGbC7EBwF21q6F9Ka5SOgJA3TbNRvz6dvL5mZNLMgzSWx8onlK24-g8y8kefJktk8wuW1-kZHeS1ku75FC5g3fZ-YOkMHVLyi54mZmevfuxcKF66XKSKceF8hLt-E6mmSnHkCjMjv4QveNx7ZXnHMPMMTtOr8TlYMfEr__Wa_H99svTzdfq4fHu_ubTQ0V6h7myoKhj29Gggaiu21q1WA_tDtE2oPVgG4WF0K1CqDsceM-0B2LVDaj2vb4Wb893QzFvErnVPQXviyODiNBoxEJ9PFNUnKfIg5mjm2w8GQVmTcEczb8pmDUFA9qUFMry5_Myl3_8dBxXGfbEvYurSh_c_5z5DaVBnWU</recordid><startdate>20100701</startdate><enddate>20100701</enddate><creator>Suresh, M.K.</creator><creator>Thomas, J.K.</creator><creator>Sreemoolanadhan, H.</creator><creator>George, C.N.</creator><creator>John, Annamma</creator><creator>Solomon, Sam</creator><creator>Wariar, P.R.S.</creator><creator>Koshy, J.</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20100701</creationdate><title>Synthesis of nanocrystalline magnesium titanate by an auto-igniting combustion technique and its structural, spectroscopic and dielectric properties</title><author>Suresh, M.K. ; Thomas, J.K. ; Sreemoolanadhan, H. ; George, C.N. ; John, Annamma ; Solomon, Sam ; Wariar, P.R.S. ; Koshy, J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c352t-a01cbeabcf30cc44841824f8522a7033fa712cbe381204b2fe9ec90ce1bf219d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>A. Ceramics</topic><topic>A. Nanostructures</topic><topic>B. Chemical synthesis</topic><topic>B. Dielectric properties</topic><topic>C. X-ray diffraction</topic><topic>CRYSTALS</topic><topic>DIFFERENTIAL THERMAL ANALYSIS</topic><topic>FOURIER TRANSFORM SPECTROMETERS</topic><topic>GRAVIMETRIC ANALYSIS</topic><topic>MAGNESIUM</topic><topic>MATERIALS SCIENCE</topic><topic>MICROSTRUCTURE</topic><topic>NANOSCIENCE AND NANOTECHNOLOGY</topic><topic>NANOSTRUCTURES</topic><topic>PARTICLE SIZE</topic><topic>PERMITTIVITY</topic><topic>POWDERS</topic><topic>QUALITY FACTOR</topic><topic>RAMAN SPECTROSCOPY</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>SYNTHESIS</topic><topic>TEMPERATURE COEFFICIENT</topic><topic>TRANSMISSION ELECTRON MICROSCOPY</topic><topic>X-RAY DIFFRACTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Suresh, M.K.</creatorcontrib><creatorcontrib>Thomas, J.K.</creatorcontrib><creatorcontrib>Sreemoolanadhan, H.</creatorcontrib><creatorcontrib>George, C.N.</creatorcontrib><creatorcontrib>John, Annamma</creatorcontrib><creatorcontrib>Solomon, Sam</creatorcontrib><creatorcontrib>Wariar, P.R.S.</creatorcontrib><creatorcontrib>Koshy, J.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Materials research bulletin</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Suresh, M.K.</au><au>Thomas, J.K.</au><au>Sreemoolanadhan, H.</au><au>George, C.N.</au><au>John, Annamma</au><au>Solomon, Sam</au><au>Wariar, P.R.S.</au><au>Koshy, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of nanocrystalline magnesium titanate by an auto-igniting combustion technique and its structural, spectroscopic and dielectric properties</atitle><jtitle>Materials research bulletin</jtitle><date>2010-07-01</date><risdate>2010</risdate><volume>45</volume><issue>7</issue><spage>761</spage><epage>765</epage><pages>761-765</pages><issn>0025-5408</issn><eissn>1873-4227</eissn><abstract>Nanocrystalline magnesium titanate was synthesized through an auto-ignited combustion method. The phase purity of the powder was examined using X-ray diffraction, thermo gravimetric analysis, differential thermal analysis, Fourier transform infrared spectroscopy and Raman spectroscopy. The transmission electron microscopy study showed that the particle size of the as-prepared powder was in between 20 and 40
nm. The nanopowder could be sintered to 98% of the theoretical density at 1200
°C for 3
h. The microstructure of the sintered surface was examined using scanning electron microscopy. The dielectric constant (
ɛ
r
) of 16.7 and loss factor (tan
δ) of the order of 10
−4 were obtained at 5
MHz when measured using LCR meter. The quality factor (
Q
u
×
f) 73,700 and temperature coefficient of resonant frequency (
τ
f
) −44.3
ppm/°C, at 6.5
GHz are the best reported values for sintered pellets obtained from phase pure nanocrystalline MgTiO
3 powder.</abstract><cop>United States</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.materresbull.2010.03.019</doi><tpages>5</tpages></addata></record> |
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| subjects | A. Ceramics A. Nanostructures B. Chemical synthesis B. Dielectric properties C. X-ray diffraction CRYSTALS DIFFERENTIAL THERMAL ANALYSIS FOURIER TRANSFORM SPECTROMETERS GRAVIMETRIC ANALYSIS MAGNESIUM MATERIALS SCIENCE MICROSTRUCTURE NANOSCIENCE AND NANOTECHNOLOGY NANOSTRUCTURES PARTICLE SIZE PERMITTIVITY POWDERS QUALITY FACTOR RAMAN SPECTROSCOPY SCANNING ELECTRON MICROSCOPY SYNTHESIS TEMPERATURE COEFFICIENT TRANSMISSION ELECTRON MICROSCOPY X-RAY DIFFRACTION |
| title | Synthesis of nanocrystalline magnesium titanate by an auto-igniting combustion technique and its structural, spectroscopic and dielectric properties |
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