| 用Sol-gel法制备掺杂的锶铁氧体的结构研究 |
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| 引用本文： | 黄凯,吕建国.用Sol-gel法制备掺杂的锶铁氧体的结构研究[J].安庆师范学院学报(自然科学版),2009,15(3):67-69. |
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| 作者姓名： | 黄凯 吕建国 |
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| 作者单位： | 安徽建筑工业学院,数理系,安徽,合肥,230601;安徽大学,物理与材料学院,安徽,合肥,230039 |
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| 摘 要： | 采用溶胶-凝胶法（Sol-gel法）制备镧钴掺杂的纳米锶铁氧体（Sr1-xLaxFe12-yCoyO19）,使用X射线衍射仪、振动样品磁强计、阻抗自动测量仪（LCR电桥）对掺杂的锶铁氧体进行表征,对其结构、相变进行研究。实验结果表明,温度高于850℃时样品为稳定的M相结构,在掺杂的样品中发现了磁导率减落现象,证实了Co^2＋离子进入到六角晶体的晶位中。
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| 关 键 词： | 锶铁氧体 掺杂 磁导率减落 |
Structural Analysis for Preparing Substituted Sr Hexaferrite Nanoparticles by Sol-gel Method |
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| HUANG Kai,LV Jian-guo.Structural Analysis for Preparing Substituted Sr Hexaferrite Nanoparticles by Sol-gel Method[J].Journal of Anqing Teachers College(Natural Science Edition),2009,15(3):67-69. |
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| Authors: | HUANG Kai LV Jian-guo |
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| Institution: | 1.Department of Mathmatics & Physics;Anhui University of Architecture;Hefei 230601;2.School of Physics & Materials Science;Anhui University;Hefei 230039;China |
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| Abstract: | Sr1-xLaxFe12-yCoyO19 is prepared to characteristic Sr Hexaferrite Nanoparticles and study their structure and phase-varying by sol-gel method and by means of X-ray diffraction(XRD),vibrating sample magnetometer and LCD bridge with computer aided system.The experimental results show that the samples are steady M-phase when temperature is beyond 850℃,and magnetic disaccommodation can be obviously found in the substituted Sr hexaferrite nanoparticles.So,this behaviour shows that the magnetic Co2+ ionic go into the crystal of hexagonal structure. |
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| Keywords: | strontium ferrites substitution magnetic disaccommodation |
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