The Controlling Factors in the content of Cr6+ in Green Strontium Ferrite

摘要：

In order to reach the standard of the RoHS that the content of Cr6+ lower than 200ppm in ferrite, this reserch focused on the factors that influence on the content of Cr6+ during the preparation of Strontium Ferrite. The results show that the content of Cr6+ in Strontium Ferrit can be controlled among 91～117 ppm, and the optimum condition is as follows: the quality ratio of raw materials/graphite=10:1.25, the rate of the N2 flow 0.1～0.15 L/min, sintered temperature 950～1020℃, residence time 25～35min at the corresponding temperature point, granularity of the mixed system lower than 0.1～0.3mm.

关键词： Ferrite Cr6+ RoHS Factor

作者: Nanchun CHEN Hanmei AO Zhiliang ZHAN

作者单位: Key Laboratory of Nonferrous and New Materials Processing Technology ,Ministry of Education Department of Materials and Chemistry Engineering,Guilin Institute of Technology, Guilin 541004

会议类型: 国际会议

会议名称: 2008年中美材料国际研讨会

会议地点: 重庆

会议语种:英文

页码: 28-31

在线出版日期: 2008-06-09（万方平台首次上网日期，不代表论文的发表时间）