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| 烧结温度对氧化物法制备Ni-Zn铁氧体的介电性能影响 | |
| 引用本文： | 罗广圣,姜贵文,李建德.烧结温度对氧化物法制备Ni-Zn铁氧体的介电性能影响[J].南昌大学学报(工科版),2012,34(3):212-215. |
| 作者姓名： | 罗广圣 姜贵文 李建德 |
| 作者单位： | 1. 南昌大学空间科学与技术研究院,江西南昌,330031 2. 南昌大学共青学院,江西共青城,332020 3. 国家硅检中心东海研究院,江苏东海,223000 |
| 基金项目： | 江西省教育厅科技资助项目（赣教技字[2006]25号） |
| 摘 要： | 采用氧化物法制备了Ni0.5Zn0.5Fe2 O4铁氧体；样品的相组成成分、微结构和介电性能分别采用X射线衍射仪(XRD)、扫描电镜(SEM)、阻抗分析仪进行表征,讨论了经不同温度预烧和烧结后的样品微结构和介电性能.结果表明:950℃和1 000℃预烧的样品有Fe2 O3第2相产生,随着烧结温度的升高,微晶尺寸和密度逐渐增大；介电常数呈现先减小后增大的趋势,在1 200℃时有最小值；1 300℃下烧结样品的介电损耗角正切有峰值出现,表现出了异常的介电行为. |
| 关 键 词： | Ni-Zn铁氧体 预烧温度 烧结温度 介电性能 |
Dielectric Properties of Ni-Zn Ferrites Prepared at Different Sintering Temperature by Oxide Method |
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| LUO Guang-sheng , JIANG Gui-wen , LI Jian-de.Dielectric Properties of Ni-Zn Ferrites Prepared at Different Sintering Temperature by Oxide Method[J].Journal of Nanchang University(Engineering & Technology Edition),2012,34(3):212-215. | |
| Authors: | LUO Guang-sheng JIANG Gui-wen LI Jian-de |
| Affiliation: | ( I a. Academy of Space Technolgy, Nanchang University, Jiangxi Nanchang 330031, China ; 1 b. School of Gongqing, Nanchang University, Jiangxi Gongqingcheng 332020, China ; 2. Donghai Research Institute of Center for Silicon Material Quality Supervision and Quarantine, Jiangsu Donghai 223000, China) |
| Abstract: | Polycrystal ferrite samples of Ni0.5Zn0.5Fe2O4 were prepared by oxide method. The phase structure, microstructure and dielectric properties were analysized by X -ray diffraction method （ XRD）, scanning electron microscope（SEM） and resistance analysis instrument. The effects of sintering temperature were studied on micro- structure and dielectric properties of the samples, respectively. The results indicated that the second phase Fe2 03 ap- pear as presintered at 950 ℃ and 1000 ℃ ,while the grain size and the density increased with the increasing sintered temperature. The dielectric constant decreased at first, and it reached the lowest value at 1 200 ℃, and then in- creased. The dielectric constant of the sample as sintered at 1300 ℃ has a peak, it is appeared an abnormal phe- nomenon. |
| Keywords: | Ni-Zn ferrite presintering temperature sintering temperature dielectric properties |
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