Preparation and Characterization of Rare Earth Metal and Alloy Target Materials for Manufacturing Magneto-Optical Disks

摘要：

The studies were made on the preparation processes of the rare earth metal and alloy target materials and their characterization. In this work the rare earth metals were prepared by electrolysis of the oxide in molten salt for Nd metal and metallothermic reduction of the fluorides for Gd, Tb, Dy metals. After vacuum refining and distillation purification these rare earth metals were used for manufacturing the element targets, mosaic targets and as the starting materials of preparing the rare earth-transition metal (RE-TM) alloy targets. The four kinds of Dy-FeCo, NdDy-FeCo, Tb-FeCo and GdTb-FeCo alloy targets with diameter of 100mm and thickness of 3mm were prepared using powder metallurgical technique. The oxygen content and microstructure of the prepared RE-TM cast alloys and sintered targets were analyzed. The features and requirements of the RE-TM alloy sputtering target materials were also discussed.

关键词： rare earth metal alloy target material sputtering magneto-optical recording media

作者: Zhang Zhihong(张志宏) Qiu Jiufeng(邱巨峰) Ma Zhihong(马志鸿) Yu Yaqiao(于雅樵)

作者单位: Baotou Research Institute of Rare Earths, Baotou 014030, China Ruike State Engineering Research Cent Baotou Research Institute of Rare Earths, Baotou 014030, China Baotou Research Institute of Rare Earths, Baotou 014030, China Baotou Rewin Rare Earth Metal Materia

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 440-443

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）