Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals
Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Tyagi, Sachin [verfasserIn] Baskey, Himanshu B. [verfasserIn] Agarwala, R. C. [verfasserIn] Agarwala, Vijaya [verfasserIn] Shami, T. C. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Transactions of the Indian Institute of Metals - [New Delhi] : Springer India, 2008, 64(2011), 3 vom: Juni, Seite 271-277 |
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| Übergeordnetes Werk: |
volume:64 ; year:2011 ; number:3 ; month:06 ; pages:271-277 |
| Links: |
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| DOI / URN: |
10.1007/s12666-011-0055-z |
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| Katalog-ID: |
SPR026763133 |
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| 245 | 1 | 0 | |a Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
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| 520 | |a Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. | ||
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| 700 | 1 | |a Baskey, Himanshu B. |e verfasserin |4 aut | |
| 700 | 1 | |a Agarwala, R. C. |e verfasserin |4 aut | |
| 700 | 1 | |a Agarwala, Vijaya |e verfasserin |4 aut | |
| 700 | 1 | |a Shami, T. C. |e verfasserin |4 aut | |
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10.1007/s12666-011-0055-z doi (DE-627)SPR026763133 (SPR)s12666-011-0055-z-e DE-627 ger DE-627 rakwb eng 620 660 670 ASE Tyagi, Sachin verfasserin aut Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. reflection loss (dpeaa)DE-He213 hexagonal (dpeaa)DE-He213 avrami index (dpeaa)DE-He213 activation energy (dpeaa)DE-He213 Baskey, Himanshu B. verfasserin aut Agarwala, R. C. verfasserin aut Agarwala, Vijaya verfasserin aut Shami, T. C. verfasserin aut Enthalten in Transactions of the Indian Institute of Metals [New Delhi] : Springer India, 2008 64(2011), 3 vom: Juni, Seite 271-277 (DE-627)617807884 (DE-600)2535335-4 0975-1645 nnns volume:64 year:2011 number:3 month:06 pages:271-277 https://dx.doi.org/10.1007/s12666-011-0055-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 64 2011 3 06 271-277 |
| spelling |
10.1007/s12666-011-0055-z doi (DE-627)SPR026763133 (SPR)s12666-011-0055-z-e DE-627 ger DE-627 rakwb eng 620 660 670 ASE Tyagi, Sachin verfasserin aut Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. reflection loss (dpeaa)DE-He213 hexagonal (dpeaa)DE-He213 avrami index (dpeaa)DE-He213 activation energy (dpeaa)DE-He213 Baskey, Himanshu B. verfasserin aut Agarwala, R. C. verfasserin aut Agarwala, Vijaya verfasserin aut Shami, T. C. verfasserin aut Enthalten in Transactions of the Indian Institute of Metals [New Delhi] : Springer India, 2008 64(2011), 3 vom: Juni, Seite 271-277 (DE-627)617807884 (DE-600)2535335-4 0975-1645 nnns volume:64 year:2011 number:3 month:06 pages:271-277 https://dx.doi.org/10.1007/s12666-011-0055-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 64 2011 3 06 271-277 |
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10.1007/s12666-011-0055-z doi (DE-627)SPR026763133 (SPR)s12666-011-0055-z-e DE-627 ger DE-627 rakwb eng 620 660 670 ASE Tyagi, Sachin verfasserin aut Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. reflection loss (dpeaa)DE-He213 hexagonal (dpeaa)DE-He213 avrami index (dpeaa)DE-He213 activation energy (dpeaa)DE-He213 Baskey, Himanshu B. verfasserin aut Agarwala, R. C. verfasserin aut Agarwala, Vijaya verfasserin aut Shami, T. C. verfasserin aut Enthalten in Transactions of the Indian Institute of Metals [New Delhi] : Springer India, 2008 64(2011), 3 vom: Juni, Seite 271-277 (DE-627)617807884 (DE-600)2535335-4 0975-1645 nnns volume:64 year:2011 number:3 month:06 pages:271-277 https://dx.doi.org/10.1007/s12666-011-0055-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 64 2011 3 06 271-277 |
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10.1007/s12666-011-0055-z doi (DE-627)SPR026763133 (SPR)s12666-011-0055-z-e DE-627 ger DE-627 rakwb eng 620 660 670 ASE Tyagi, Sachin verfasserin aut Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. reflection loss (dpeaa)DE-He213 hexagonal (dpeaa)DE-He213 avrami index (dpeaa)DE-He213 activation energy (dpeaa)DE-He213 Baskey, Himanshu B. verfasserin aut Agarwala, R. C. verfasserin aut Agarwala, Vijaya verfasserin aut Shami, T. C. verfasserin aut Enthalten in Transactions of the Indian Institute of Metals [New Delhi] : Springer India, 2008 64(2011), 3 vom: Juni, Seite 271-277 (DE-627)617807884 (DE-600)2535335-4 0975-1645 nnns volume:64 year:2011 number:3 month:06 pages:271-277 https://dx.doi.org/10.1007/s12666-011-0055-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 64 2011 3 06 271-277 |
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10.1007/s12666-011-0055-z doi (DE-627)SPR026763133 (SPR)s12666-011-0055-z-e DE-627 ger DE-627 rakwb eng 620 660 670 ASE Tyagi, Sachin verfasserin aut Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals 2011 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. reflection loss (dpeaa)DE-He213 hexagonal (dpeaa)DE-He213 avrami index (dpeaa)DE-He213 activation energy (dpeaa)DE-He213 Baskey, Himanshu B. verfasserin aut Agarwala, R. C. verfasserin aut Agarwala, Vijaya verfasserin aut Shami, T. C. verfasserin aut Enthalten in Transactions of the Indian Institute of Metals [New Delhi] : Springer India, 2008 64(2011), 3 vom: Juni, Seite 271-277 (DE-627)617807884 (DE-600)2535335-4 0975-1645 nnns volume:64 year:2011 number:3 month:06 pages:271-277 https://dx.doi.org/10.1007/s12666-011-0055-z lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 64 2011 3 06 271-277 |
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Tyagi, Sachin @@aut@@ Baskey, Himanshu B. @@aut@@ Agarwala, R. C. @@aut@@ Agarwala, Vijaya @@aut@@ Shami, T. C. @@aut@@ |
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Tyagi, Sachin |
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Tyagi, Sachin ddc 620 misc reflection loss misc hexagonal misc avrami index misc activation energy Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
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Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
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Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
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Tyagi, Sachin |
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Tyagi, Sachin Baskey, Himanshu B. Agarwala, R. C. Agarwala, Vijaya Shami, T. C. |
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reaction kinetic, magnetic and microwave absorption studies of $ srfe_{12} %$ o_{19} $/$ cofe_{2} %$ o_{4} $ ferrite nanocrystals |
| title_auth |
Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
| abstract |
Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. |
| abstractGer |
Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. |
| abstract_unstemmed |
Abstract Mixture of cobalt ferrite and strontium hexaferrite nanocrystals i.e. $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ exhibiting super paramagnetic nature were synthesized by modified flux method. The resulting precursors were heat treated (HT) at 900 and 1200°C for 4 h in nitrogen atmosphere. During heat treatment, transformation proceeds as instantaneous rate of nucleation and three dimensional growth with activation energy of 135.835 kJ/mole. The hysteresis loops showed a hike in saturation magnetization from 1.045 to 84.362 emu/g with an increase in HT temperature. The ‘as synthesized’ particles have size in the range of 10–20 nm with spherical shape. Further, these spherical shape particles tend to change their morphology to hexagonal plates with increase in HT temperatures. The relative complex permittivity and permeability of the composite powder are investigated. The minimum reflection loss of the composite powder reaches to −27.6 dB at 10.8 GHz which suits its application in RADAR absorbing materials. |
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3 |
| title_short |
Reaction kinetic, magnetic and microwave absorption studies of $ SrFe_{12} %$ O_{19} $/$ CoFe_{2} %$ O_{4} $ ferrite nanocrystals |
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https://dx.doi.org/10.1007/s12666-011-0055-z |
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Baskey, Himanshu B. Agarwala, R. C. Agarwala, Vijaya Shami, T. C. |
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Baskey, Himanshu B. Agarwala, R. C. Agarwala, Vijaya Shami, T. C. |
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| doi_str |
10.1007/s12666-011-0055-z |
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2024-07-03T22:38:48.939Z |
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| score |
7.3985195 |