Structure and magnetic properties of bulk Fe-Al-Ga-P-C-B-Si glassy alloys in a ringed form prepared by copper mold casting
Structure and magnetic properties of bulk Fe-Al-Ga-P-C-B-Si glassy alloys in a ringed form prepared by copper mold casting
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铜模铸造环状块体Fe-Al-Ga-P-C-B-Si非晶合金的结构与磁性能
DOI：
10.1109/20.800524
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发表时间：
1999
影响因子：
1.5
通讯作者：
A. Inoue
中科院分区：
文献类型：
--
作者：
T. Mizushima;K. Ikarashi;A. Makino;A. Inoue
采用铜模铸造法制备了外径10 mm、内径6 mm、厚度1 mm的环形Fe/sub 70/Al/sub 5/Ga/sub 2/P/sub 10.05/C/sub 5.75/B/sub 4.6/Si/sub 2.6/合金块体非晶合金，研究了其结构和软磁性能。本体样品仅由单一非晶相组成。体样品的过冷液相区、饱和磁化强度和居里温度分别约为60 K、1.2 T和620 K，与相应的非晶合金薄带一致。体样品的最大磁导率和磁导率分别约为110000和2.2 A/m。这些良好的软磁性能的大块玻璃合金可能是由于其高玻璃形成能力导致的较高程度的结构均匀性。因此，Fe-Al-Ga-P-C-B-Si非晶合金具有优良的软磁性能和极高的可铸性，可望作为工程磁性材料。
Structure and soft magnetic properties were investigated for a bulk glassy Fe/sub 70/Al/sub 5/Ga/sub 2/P/sub 10.05/C/sub 5.75/B/sub 4.6/Si/sub 2.6/ alloy in a ring shape form with an outer diameter of 10 mm, an inner diameter of 6 mm and a thickness of 1 mm prepared by copper mold casting. The bulk sample consisted of only a single amorphous phase. The supercooled liquid region, saturation magnetization, and Curie temperature for the bulk sample are about 60 K, 1.2 T, and 620 K, respectively, in agreement with that of the corresponding amorphous alloy ribbon, The maximum permeability and the coercivity for the bulk sample are about 110000 and 2.2 A/m. These good soft magnetic properties of the bulk glassy alloy are presumably due to a higher degree of structural homogeneity resulting from its high glass-forming-ability. Therefore, these excellent soft magnetic properties as well as the very high castability for the Fe-Al-Ga-P-C-B-Si glassy alloy allows us to expect that this glassy alloy will be used as an engineering magnetic material.