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熔体快淬工艺中,快淬速度对Nd-Fe-B型薄带磁性材料的结构与性能影响显著.利用熔体快淬法制备了Nd10Fe81Co3B6薄带,研究了快淬速度对其相结构以及晶化过程的影响.结果表明,快淬速度不同,薄带的非晶程度不同,随着快淬速度的增加,薄带中非晶相含量增加.而不同淬速薄带的晶化过程也存在很大差异,当淬速较低时,薄带晶化程度较高,为质点控制晶化模式;当淬速较高时,薄带中基本为非晶化相,此时为持续晶化模式.以15~50m/s速度快淬的薄带开始晶化的温度在540~610℃范围内.

参考文献

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