热处理对Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)铁氧体磁性能的影响

材料研究学报

2011, Vol. 25

Issue (3): 308-312

研究论文

本期目录 | 过刊浏览

热处理对Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)铁氧体磁性能的影响

陈文国, 代建清, 丁耀民, 夏井兵

昆明理工大学材料科学与工程学院昆明 650093

Effect of Heat Treatment Temperature on Magnetic Properties of Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)

CHEN Wenguo, DAI Jianqing, DING Yaomin, XIA Jingbing

Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093

引用本文:

陈文国代建清丁耀民夏井兵. 热处理对Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)铁氧体磁性能的影响[J]. 材料研究学报, 2011, 25(3): 308-312.
. Effect of Heat Treatment Temperature on Magnetic Properties of Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)[J]. Chin J Mater Res, 2011, 25(3): 308-312.

全文: PDF(1076 KB)

摘要: 用化学共沉淀法制备均匀、细小、高活性的Y型平面六角铁氧体前躯体粉体, 将前躯体在600--1050℃煅烧后在1000℃烧结, 并对烧结样品进行表征, 研究了热处理对Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y)铁氧体性能的影响。结果表明, 前躯体的颗粒粒度分布集中, 粒径大小约为3 μm。在较低温度(900℃)煅烧的样品能形成纯相Y型平面六角铁氧体; 其比饱和磁化强度随着煅烧温度的升高而增大, 对应磁环的起始磁导率先降低后增大; 在900℃煅烧的样品σs≈17.262 A• m2• kg-1、Hc≈5.146 kA•m-1, 频率为100 MHz, 其μ i≈3.7、Q≈13.4。

关键词 ：无机非金属材料, Y型平面六角铁氧体, 显微结构, 磁性能, 化学共沉淀法

Abstract：The Y-type hexaferrite powder was synthesized by co-precipitation, the homogenous precursor with fine particles and high activity was calcined at 600–1050 and the sample properties were characterized by laser particle size analyzer (LPS), energy dispersive spectrometer (EDS), vibrating sample magnetometer (VSM) and HP4291A impedance analyzer. The results showed that the particle sizes are around 3 μm. The well defined hexagonal was formed at lower temperature (900 ), accompanying with crystal structure transition. The saturation magnetization increases with the ascending temperature, while initial permeability decreases with increasing heat treatment temperature first but rises to apex in the end. After sintered at 900oC, the specific saturation magnetization, coercitive force, initial permeability and factor of quality of the sample were 17.262 A·m2·kg−1, 5.146 kA·m−1, and μi ≈7, Q ≈13.4 (100 MHz) respectively.

Key words： inorganic non-metallic materials Y-type hexaferrites microstructure magnetic properties co-precipitation

收稿日期: 2011-01-06

ZTFLH:

TM277

基金资助:

云南省中青年学术技术带头人后备人才培养项目2006PY01--09资助。

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