郭小波;王丽丽;黄志高;

• 1:福建师范大学物理与能源学院
• 2:福建省量子调控及新能源材料重点实验室

摘要(Abstract)：

通过溶胶-凝胶法制备得到Y_(2.7-x)Bi_xCa_(0.3)Zr_(0.3)Fe_(4.7)O_(12)柘榴石纳米颗粒.Bi⁽³⁺⁾的加入对柘榴石相的成相温度有明显的降低作用,当Bi(3+)的加入对柘榴石相的成相温度有明显的降低作用,当Bi⁽³⁺⁾的掺杂量从0增大到0.5时,样品的成相温度从962℃降低到690℃附近.通过谢乐公式计算可知不同Bi(3+)的掺杂量从0增大到0.5时,样品的成相温度从962℃降低到690℃附近.通过谢乐公式计算可知不同Bi⁽³⁺⁾掺杂量的样品在900℃下烧结2 h,柘榴石相的平均粒径均小于50nm.通过掺杂Bi(3+)掺杂量的样品在900℃下烧结2 h,柘榴石相的平均粒径均小于50nm.通过掺杂Bi⁽³⁺⁾降低成相温度,样品的粒径更加远离单畴临界尺寸,有利于降低样品的矫顽力.

关键词(KeyWords)： 钇铁柘榴石;溶胶-凝胶法;低温烧结;Bi3+掺杂;磁性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(11374052);国家自然科学基金青年科学基金资助项目(51202031);; 福建省教育厅科技项目(JB14029)

作者(Authors): 郭小波;王丽丽;黄志高;

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