The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics
MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstru...
Ausführliche Beschreibung
Autor*in: |
Huan Huang [verfasserIn] Baoyang Li [verfasserIn] Fanshuo Wang [verfasserIn] Yuanming Lai [verfasserIn] Gang Jiang [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
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2023 |
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Übergeordnetes Werk: |
In: Crystals - MDPI AG, 2011, 13(2023), 7, p 1050 |
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Übergeordnetes Werk: |
volume:13 ; year:2023 ; number:7, p 1050 |
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DOI / URN: |
10.3390/cryst13071050 |
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Katalog-ID: |
DOAJ093922167 |
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245 | 1 | 4 | |a The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics |
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650 | 4 | |a MgTiO<sub<3</sub< ceramic co-substitution | |
650 | 4 | |a microwave dielectric properties | |
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650 | 4 | |a octahedral distortion | |
653 | 0 | |a Crystallography | |
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700 | 0 | |a Yuanming Lai |e verfasserin |4 aut | |
700 | 0 | |a Gang Jiang |e verfasserin |4 aut | |
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10.3390/cryst13071050 doi (DE-627)DOAJ093922167 (DE-599)DOAJ5449674bd523423781e065281ab6f6d9 DE-627 ger DE-627 rakwb eng QD901-999 Huan Huang verfasserin aut The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. MgTiO<sub<3</sub< ceramic co-substitution microwave dielectric properties lattice energy octahedral distortion Crystallography Baoyang Li verfasserin aut Fanshuo Wang verfasserin aut Yuanming Lai verfasserin aut Gang Jiang verfasserin aut In Crystals MDPI AG, 2011 13(2023), 7, p 1050 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:13 year:2023 number:7, p 1050 https://doi.org/10.3390/cryst13071050 kostenfrei https://doaj.org/article/5449674bd523423781e065281ab6f6d9 kostenfrei https://www.mdpi.com/2073-4352/13/7/1050 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 7, p 1050 |
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10.3390/cryst13071050 doi (DE-627)DOAJ093922167 (DE-599)DOAJ5449674bd523423781e065281ab6f6d9 DE-627 ger DE-627 rakwb eng QD901-999 Huan Huang verfasserin aut The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. MgTiO<sub<3</sub< ceramic co-substitution microwave dielectric properties lattice energy octahedral distortion Crystallography Baoyang Li verfasserin aut Fanshuo Wang verfasserin aut Yuanming Lai verfasserin aut Gang Jiang verfasserin aut In Crystals MDPI AG, 2011 13(2023), 7, p 1050 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:13 year:2023 number:7, p 1050 https://doi.org/10.3390/cryst13071050 kostenfrei https://doaj.org/article/5449674bd523423781e065281ab6f6d9 kostenfrei https://www.mdpi.com/2073-4352/13/7/1050 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 7, p 1050 |
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10.3390/cryst13071050 doi (DE-627)DOAJ093922167 (DE-599)DOAJ5449674bd523423781e065281ab6f6d9 DE-627 ger DE-627 rakwb eng QD901-999 Huan Huang verfasserin aut The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. MgTiO<sub<3</sub< ceramic co-substitution microwave dielectric properties lattice energy octahedral distortion Crystallography Baoyang Li verfasserin aut Fanshuo Wang verfasserin aut Yuanming Lai verfasserin aut Gang Jiang verfasserin aut In Crystals MDPI AG, 2011 13(2023), 7, p 1050 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:13 year:2023 number:7, p 1050 https://doi.org/10.3390/cryst13071050 kostenfrei https://doaj.org/article/5449674bd523423781e065281ab6f6d9 kostenfrei https://www.mdpi.com/2073-4352/13/7/1050 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 7, p 1050 |
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10.3390/cryst13071050 doi (DE-627)DOAJ093922167 (DE-599)DOAJ5449674bd523423781e065281ab6f6d9 DE-627 ger DE-627 rakwb eng QD901-999 Huan Huang verfasserin aut The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. MgTiO<sub<3</sub< ceramic co-substitution microwave dielectric properties lattice energy octahedral distortion Crystallography Baoyang Li verfasserin aut Fanshuo Wang verfasserin aut Yuanming Lai verfasserin aut Gang Jiang verfasserin aut In Crystals MDPI AG, 2011 13(2023), 7, p 1050 (DE-627)718303067 (DE-600)2661516-2 20734352 nnns volume:13 year:2023 number:7, p 1050 https://doi.org/10.3390/cryst13071050 kostenfrei https://doaj.org/article/5449674bd523423781e065281ab6f6d9 kostenfrei https://www.mdpi.com/2073-4352/13/7/1050 kostenfrei https://doaj.org/toc/2073-4352 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 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_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 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_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 7, p 1050 |
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structure and microwave dielectric properties of mgti<sub<1−<i<x</i<</sub<(mn<sub<1/3</sub<nb<sub<2/3</sub<)<i<<sub<x</sub<</i<o<sub<3</sub< ceramics |
callnumber |
QD901-999 |
title_auth |
The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics |
abstract |
MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. |
abstractGer |
MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. |
abstract_unstemmed |
MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) ceramics were prepared via the solid-state reaction method. The phase composition, microstructure, bond characteristics, and microwave dielectric properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0–0.30) were systematically investigated. The MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< ceramics presented an ilmenite type with an <i<R</i<-3 space group, and the secondary-phase MgTi<sub<2</sub<O<sub<5</sub< only existed at <i<x</i< = 0 and 0.30. The introduction of (Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<sup<4+</sup< effectively suppressed the formation of the MgTi<sub<2</sub<O<sub<5</sub< phase. The variation trend of the dielectric constant (<i<ε<sub<r</sub<</i<) was the same as relative density. The quality factor (<i<Qf</i<) value was enhanced by the stable microstructure, which was caused via the lattice energy of Ti/(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)-O bonds. And a high <i<Qf</i< value (353,000 GHz) was obtained for MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< (<i<x</i< = 0.04) ceramics sintered at 1250 °C. In addition, the introduction of Mn<sup<2+</sup< ions with a larger ionic radius exacerbates the distortion of TiO<sub<6</sub< octahedra, leading to significant fluctuations in the temperature coefficient of the resonance frequency (<i<τ<sub<f</sub<</i<) value. |
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container_issue |
7, p 1050 |
title_short |
The Structure and Microwave Dielectric Properties of MgTi<sub<1−<i<x</i<</sub<(Mn<sub<1/3</sub<Nb<sub<2/3</sub<)<i<<sub<x</sub<</i<O<sub<3</sub< Ceramics |
url |
https://doi.org/10.3390/cryst13071050 https://doaj.org/article/5449674bd523423781e065281ab6f6d9 https://www.mdpi.com/2073-4352/13/7/1050 https://doaj.org/toc/2073-4352 |
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author2 |
Baoyang Li Fanshuo Wang Yuanming Lai Gang Jiang |
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Baoyang Li Fanshuo Wang Yuanming Lai Gang Jiang |
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QD - Chemistry |
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doi_str |
10.3390/cryst13071050 |
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up_date |
2024-07-03T20:11:52.834Z |
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