【摘要】 采用溶胶-凝胶法合成了掺杂Ce的磁铅石型系列Z型钡铁氧体(Ba3-xCexCo2Fe24O41,x=0.00~0.40)。结果表明,Z型钡铁氧体的最佳成相条件为1250℃/5 h;测试不同烧结温度下Ba3Co2Fe24O41的吸波特性,发现经1300℃/5 h烧结后所得试样对微波的吸收特性最为优良,最大衰减量可达35.012 dB。经1300℃/5 h下得到的Ba3-xCexCo2Fe24O41(x=0.00~0.40)的吸波特性分析表明,适量掺杂Ce可以提高Z型钡铁氧体的吸波特性,当x=0.3时有最大衰减量47.575 dB。更多还原

【Abstract】 Z type hexaferrite doped with cerium,Ba3-xCexCo2Fe24O41(x=0.00～0.40),micro-crystals was synthesized through a citrate acid sol-gel method.The micro-crystal powders were obtained at 1250 ℃ and were sintered 5 h.But the powders of Ba3Co2Fe24O41that were obtained at 1300 ℃/5 h has the best microwave absorbing properties,and the highest microwave absorption efficiency can reach to 35.012 dB.And it is found that doping properly with cerium can increase the microwave absorption efficiency,and the highest efficiency can reach to 47.575 dB.更多还原