| 草酸-硝酸盐低热固相反应法制备(Ni_(0.58)Cu_(0.2)Zn_(0.22))Fe_(1.96)O_4铁氧体 |
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| 引用本文： | 李学玲,顾烁明,杨项军.草酸-硝酸盐低热固相反应法制备(Ni_(0.58)Cu_(0.2)Zn_(0.22))Fe_(1.96)O_4铁氧体[J].材料导报,2009,23(18). |
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| 作者姓名： | 李学玲 顾烁明 杨项军 |
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| 作者单位： | 云南大学化学科学与工程学院,昆明,650091 |
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| 基金项目： | 云南省自然科学基金，国家"973" |
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| 摘 要： | 以草酸和金属硝酸盐为原料,用低热固相反应法合成了纳米(Ni0.58Cu0.2Zn0.22)Fe1.96O4尖晶石型铁氧体,借助FT-IR、DSC-TG、XRD、TEM以及SEM等技术对固相反应过程和样品进行了研究及表征.FT-IR研究表明,草酸和金属硝酸盐在研磨过程中发生低热固相反应,生成金属草酸盐前驱体;FT-IR和XRD分析表明,前驱体经不同温度焙烧后得到单一尖晶石相的NiCuZn铁氧体粉末;依据TEM和SEM表征证明,前驱体在450℃分解1h后铁氧体粒径约为30～40nm,铁氧体于900℃烧结为陶瓷体后,晶粒约为2～4μml,烧结致密,磁谱测量表明,900℃烧结样品的磁导率为210,截止频率为28MHz.
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| 关 键 词： | 低热固相反应 草酸 硝酸盐 NiCuZn铁氧体 |
Synthesis of Nanocrystalline(Ni_(0.58)Cu_(0.2)Zn_(0.22))Fe_(1.96)O_4 by Low-heating Solid-state Reaction |
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| LI Xueling,GU Shuoyue,YANG Xiangjun.Synthesis of Nanocrystalline(Ni_(0.58)Cu_(0.2)Zn_(0.22))Fe_(1.96)O_4 by Low-heating Solid-state Reaction[J].Materials Review,2009,23(18). |
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| Authors: | LI Xueling GU Shuoyue YANG Xiangjun |
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| Affiliation: | LI Xueling,GU Shuoyue,YANG Xiangjun(College of Chemistry Science , Engineering,Yunnan University,Kunming 650091) |
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| Abstract: | Nanocrystalline(Ni0.58Cu0.2Zn0.22)Fe1.96O4 with spinel structure is prepared by low-heating solid-state reaction method.The reaction process and thermal decomposition of oxalate precursors are investigated using FT-IR spectra,DSC-TG and XRD techniques.The results show that the metal ions can react with the oxalic acid by grinding for 30 minutes.The particle sizes of NiCuZn ferrite nano-powders are about 30~40nm using TEM analysis.The results of X-ray diffraction technique reveal that NiCuZn ferrite powders ... |
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| Keywords: | low-heating solid-state reaction oxalic acid nitrate NiCuZn ferrite |
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