CoPt3磁性纳米颗粒的制备及其磁性能的优化

材料与冶金学报, 2008, 7(1): 30-42. doi: 10.3969/j.issn.1671-6620.2008.01.007

CoPt3磁性纳米颗粒的制备及其磁性能的优化

杜雪岩 ^1, , 户嶋直樹 ^2, , 侯新刚 ^3, , 王希靖 ^4,

1.兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050

2.日本山口东京理科大学,材料科学与环境工程系,日本,山口

3.兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050

4.兰州理工大学,甘肃省有色金属新材料省部共建国家重点实验室,兰州,730050

基金项目: 兰州理工大学校科研和教改项目(SB01200602) 甘肃省中青年科技研究基金(3YSO61-A25-025) 日本学术振兴会资助项目(JSPS;ID.P02385)

关键词： CoPt3 , Ag , 磁性纳米颗粒 , 制备

Preparation of CoPt3 nanoparticles and improvements of their magnetic property

采用湿化学还原法制备了CoPt3磁性纳米颗粒,并研究了第三组元Ag对其磁性能的改善作用.结果表明,采用多重还原法可成功制备出fcc结构且平均粒径约2.6 nm的CoPt3磁性纳米颗粒,而Ag的加入使得CoPt3磁性纳米颗粒的矫顽力由78.4kA/m提高到240 kA/m.

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CoPt3磁性纳米颗粒的制备及其磁性能的优化

Preparation of CoPt3 nanoparticles and improvements of their magnetic property

参考文献