| Mechanism of Phase Transformation and Formation of Barium Hexaferrite Doped with Rare-Earths in Sol-Gel Process |
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| 引用本文： | 甘树才,洪广言,张军,车平,唐娟. Mechanism of Phase Transformation and Formation of Barium Hexaferrite Doped with Rare-Earths in Sol-Gel Process[J]. 中国稀土学报(英文版), 2003, 21(1): 98-100 |
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| 作者姓名： | 甘树才 洪广言 张军 车平 唐娟 |
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| 作者单位： | [1]CollegeofChemistry,JilinUniversity,Changchun130026,China [2]ChangchunInstituteofAppliedChem-istry,ChineseAcademyofSciences,Changchun130022,China |
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| 基金项目： | ProjectsupportedbytheNaturalScienceFoundationofJilinProvinceofChina ( 2 0 0 0 0 5 12 -2 ) |
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| 摘 要： | The phase-transformation in sol-gel preparation of barium hexaferrite and the formation of barium hexaferrite doped with La3 ~ were studied by chemical phase analysis, X-ray diffraction and infrared spectrometry analysis. The experimental results show that phase transformation reactions of FeCO3, Fe2O3 and BaFe2O4, barium hexaferrite and γ-Fe2O3 take place in the heat treatment of gel. While the doping lanthanide ion replace barium ion, an equivalent quantity of Fe^3 are reduced to Fe^2 to maintain the eharge equilibrium.
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| 关 键 词： | 相转变机制 溶胶凝胶处理 稀土掺杂 钡 铁素体 |
Mechanism of Phase Transformation and Formation of Barium Hexaferrite Doped with Rare-Earths in Sol-Gel Process |
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| Gan Shucai ,Hong Guangyan ,Zhang Jun ,Che Ping,Tang Juan. Mechanism of Phase Transformation and Formation of Barium Hexaferrite Doped with Rare-Earths in Sol-Gel Process[J]. Journal of Rare Earths, 2003, 21(1): 98-100 |
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| Authors: | Gan Shucai Hong Guangyan Zhang Jun Che Ping Tang Juan |
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| Affiliation: | Gan Shucai 1*,Hong Guangyan 2,Zhang Jun 1,Che Ping1,Tang Juan1 |
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| Abstract: | The phase-transformation in sol-gel preparation of barium hexaferrite and the formation of barium hexaferrite doped with La3+ were studied by chemical phase analysis, X-ray diffraction and infrared spectrometry analysis. The experimental results show that phase transformation reactions of FeCO3, Fe2O3 and BaFe2O4, barium hexaferrite and γ-Fe2O3 take place in the heat treatment of gel. While the doping lanthanide ion replace barium ion, an equivalent quantity of Fe3+ are reduced to Fe2+ to maintain the charge equilibrium. |
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| Keywords: | chemical materials barium hexafettite doped rare earths sol-gel process phase transformation mechanism |
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