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微量Al3+掺杂对钴铁氧体磁和电性能的影响
  • ISSN号：1002-185X
  • 期刊名称：《稀有金属材料与工程》
  • 时间：0
  • 分类：TM277[电气工程—电工理论与新技术;一般工业技术—材料科学与工程]
  • 作者机构：[1]清华大学
  • 相关基金：自然科学基金创新研究群体项目(50921061)
作者： 徐婷婷[1], 郭瑞[1], 汪长安[1]
关键词： Al3+掺杂, 钴铁氧体, 磁学性能, 电阻率
中文摘要：

采用固相反应法,制备了Al3+掺杂的钴铁氧体CoFe2xAlxO4(x=0.000,0.012,0.023,0.035,0.069,0.092)系列样品。从XRD的结果分析,钴铁氧体磁性离子间跃迁距离随x的增加而降低,表明Al3+掺杂进入了尖晶石晶格,拉曼光谱的结果验证了这一结论。当x≤0.069,随着x的增大,钴铁氧体直流电阻率增加约2个数量级;当x】0.069,直流电阻率开始下降。微量Al3+掺杂后钴铁氧体的矫顽力略有降低,但饱和磁化强度增加。最大磁致伸缩量比未掺杂Al3+的低,但磁致伸缩系数增加。

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期刊信息
  • 《稀有金属材料与工程》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国有色金属学会 中国材料研究学会 西北有色金属研究院
  • 主编：张平祥
  • 地址：西安市51号信箱
  • 邮编：710016
  • 邮箱：RMME@c-nin.com
  • 电话：029-86231117
  • 国际标准刊号：ISSN：1002-185X
  • 国内统一刊号：ISSN：61-1154/TG
  • 邮发代号:52-172
  • 获奖情况:
  • 首届国家期刊奖,中国优秀期刊一等奖,中国有色金属工业优秀期刊1等奖
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  • 被引量:24715