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中文摘要：
用电弧熔炼法制备了Ｎｄ３ ．６Ｐｒ５ ．４Ｆｅ８３Ｃｏ３Ｂ５ 合金铸锭，然后利用熔旋快淬法在铜辊转速Ｖ＝ ２０ ｍ／ｓ 下制备了Ｎｄ３ ．６Ｐｒ５．４Ｆｅ８３Ｃｏ３Ｂ５ 薄带．快淬带主要由软磁相αＦｅ 和Ｎｄ２Ｆｅ１４Ｂ 型的硬磁相组成．采用直流退磁剩磁曲线方法分析了样品在反磁化过程中的可逆与不可逆磁化部分，并研究了软磁相和硬磁相的反磁化行为，得到样品的不可逆磁化形核场 Ｈｎ０ 约为４４０ｋＡ／ｍ ．同时研究了样品的磁黏滞性，结果表明由于软磁相的存在使得热激活体积较大．
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