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添加Zn對自反應淬熄法制備Mn-鐵氧體空心微珠相結構與性能的影響
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國家自然科學基金（51172282）；武器裝備預研基金（9140A12040211JB34）


Effect of Zn Addition on Phase Structure and Properties of Mn-Ferrite Hollow Microspheres Prepared by a Self-Reactive Quenching Method
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    摘要:

    采用自反應淬熄法制備了Mn-鐵氧體復合空心微珠，分析了自蔓延反應體系中添加Zn元素對制備空心微珠的形貌、相結構和電磁參數的影響。結果表明，制備的粉末大部分為球狀空心微珠，粒徑在微米范圍，少量自蔓延反應不完全的團聚顆粒未能球化，形成不規(guī)則顆粒。Zn的引入使得微珠成分轉變?yōu)橐訫n0.5Zn0.5Fe2O4鐵氧體為主，提高了Mn-鐵氧體復合空心微珠的微波電磁損耗，使吸收峰向高頻移動。

    Abstract:

    Mn-ferrite composite hollow microspheres were prepared by a self-reactive quenching method. The effect of Zn adding on morphology, phase structure and electromagnetic parameters of the hollow microspheres were analyzed. The results show that most of the prepared powders are spherical hollow microspheres, and the particle size is in the micron range. A small amount of agglomerated particles fail to spheroidize but form irregular particles because the self-propagating reaction is not complete. The Mn0.5Zn0.5Fe2O4 ferrite composite hollow microspheres are obtained by adding metal Zn powders, and the properties of microwave electromagnetic loss are improved. The microwave absorption peaks move to higher frequency.

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許寶才,張 龍,楊進航,段榮霞,王建江.添加Zn對自反應淬熄法制備Mn-鐵氧體空心微珠相結構與性能的影響[J].稀有金屬材料與工程,2015,44(1):224~227.[Xu Baocai, Zhang Long, Yang Jinhang, Duan Rongxia, Wang Jianjiang. Effect of Zn Addition on Phase Structure and Properties of Mn-Ferrite Hollow Microspheres Prepared by a Self-Reactive Quenching Method[J]. Rare Metal Materials and Engineering,2015,44(1):224~227.]
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  • 收稿日期:2014-01-15
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  • 在線發(fā)布日期: 2015-05-22
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