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Sm3 摻雜Co2Z型鐵氧體的組織結(jié)構(gòu)和吸波性能
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鋼鐵研究總院

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TM25

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國(guó)家自然科學(xué)基金 (11205050)


Microstructures and microwave absorbing properties of Sm3 doped Co2Z-type hexagonal ferrite
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Central Iron and Steel Research Institute

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    摘要:

    采用普通陶瓷工藝制備了Sm3 摻雜的Co2Z型平面六角鐵氧體，研究了Sm3 摻雜Co2Z型鐵氧體材料的組織結(jié)構(gòu)和吸波性能。結(jié)果表明，摻雜一定量Sm3 的鐵氧體相結(jié)構(gòu)仍以Co2Z型六角晶系相為主相，但出現(xiàn)了呈顆粒狀彌散分布的富Sm相。摻雜Sm3 樣品的吸波性能明顯優(yōu)于未摻雜Sm3 樣品，在頻率為6.3GHz時(shí)，其最大反射損耗可達(dá)到-20dB，耗損大于10dB 的頻帶帶寬為5GHz，具有較寬的吸收頻帶。吸波涂層的附著力均大于10MPa，具有良好的力學(xué)性能。

    Abstract:

    The Sm3 doped Co2Z-type hexagonal ferrite materials were prepared by the conventional ceramic method and the microstructures and microwave absorbing properties of the materials were investigated. The influence of a certain amount of Sm3 addition on structures and microwave absorbing properties of the materials were investigated. The results show that Co2Z-type hexaferrite is still main phase in the Co2Z ferrite materials doped with Sm3 . It is observed that Sm-rich phase with granular morphology is dispersed in the main phase. The Sm3 doped Co2Z ferrite exhibited better microwave absorbing properties than the Sm3 undoped one. The maximum reflection loss of Sm3 doped Co2Z ferrite reached -20dB at 6.3GHz，and the frequency bandwidth of reflection loss more than 10 dB was 5GHz. The wave absorbing coating had good mechanical property and the adhesions of the coatings were higher than 10MPa.

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郭世海. Sm3 摻雜Co2Z型鐵氧體的組織結(jié)構(gòu)和吸波性能[J].稀有金屬材料與工程,2016,45(12):3223~3226.[Guo Shihai. Microstructures and microwave absorbing properties of Sm3 doped Co2Z-type hexagonal ferrite[J]. Rare Metal Materials and Engineering,2016,45(12):3223~3226.]
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  • 收稿日期:2014-09-19
  • 最后修改日期:2014-10-28
  • 錄用日期:2014-12-03
  • 在線發(fā)布日期: 2017-02-06
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