| 用精铁矿粉制备BaZnCoTi-W型微波吸收铁氧体材料 |
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| 引用本文： | 王勇,孙越胜.用精铁矿粉制备BaZnCoTi-W型微波吸收铁氧体材料[J].材料科学与工程学报,2012,30(4):543-546. |
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| 作者姓名： | 王勇 孙越胜 |
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| 作者单位： | 电子工程学院,安徽合肥,230037 |
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| 摘 要： | 利用称重、磁性探测和XRD图谱相结合的方式,分析了精铁矿粉的氧化相变过程,发现在750℃时,精铁矿粉被氧化生成α-Fe2O3;采用氧化工艺,直接用精铁矿粉和BaCO3一次烧结制备W型钡铁氧体BaZn1-aMnaCo1+0.5xTi0.5xFe16-XO27,分别研究了Co2+Ti 4+含量(x值)和涂层厚度对磁性能的影响,结果表明:当厚度为2.1mm及x=1.25时,样品在x全波段内(8～12GHZ)吸收衰减大于10dB,吸收峰达到31dB。
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| 关 键 词： | 精铁矿粉 平面型六角晶系W型铁氧体 x波段微波吸收 |
Preparation of BaZnCoTi-W Type Microwave Absorbing Ferrite with Refined Iron Mine Powder |
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| WANG Yong,SUN Yue-sheng.Preparation of BaZnCoTi-W Type Microwave Absorbing Ferrite with Refined Iron Mine Powder[J].Journal of Materials Science and Engineering,2012,30(4):543-546. |
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| Authors: | WANG Yong SUN Yue-sheng |
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| Affiliation: | (Department of Physics,The Electronic Engineering Institute,Hefei 230037,China) |
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| Abstract: | The phase transition of refined iron mine powder to Fe2O3 was analyzed by weighting,magnetic detection and X-ray diffractometry(XRD).It was found that refined iron mine powder was oxidized to α-Fe2O3 at 750℃.W-type barium ferrite BaZn1-aMnaCo1+0.5xTi0.5xFe16-XO27 was prepared with refined mine powder and BaCO3 by standard ceramic technology.It has two advantages:(1) the direct use of refined mine powder and BaCO3;(2) the one time sinter forging.The effects of Co2+Ti4+ content and coat thickness on absorption properties were also investigated.The results show that microwave reflection loss is above 10dB in the full range of x band(8~12GHZ) for a coat thickness of 2.1mm and x=1.25.Besides,the highest absorption peak is 31 dB. |
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| Keywords: | refined mine powder W-type planar hexagonal ferrite microwave absorption in x band |
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