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采用 Bridgman法制备了 SmMnsb化合物在微米尺度上定向规则排列的含 Sin的 Sb-Mn合金自生复合材料,研究了 Sm对复合材料组织的影响和不同含 Sm量下的共晶平界面生长条件结果表明:加入 Sm使 Sb-Mn合金复合材料的磁化强度大幅度提高,并使其在室温和高温下均呈易轴磁化特征.但当含 Sm量为 5%时,出现富 Sm化合物相,磁化强度有所下降提高生长速度,形成一相枝品加两相共晶混和组织,尽管其磁化强度较完全两相共晶复合材料低,但仍高于不含 Sm的 MuSb/Sb共晶复合材料,并呈现出自旋重取向.
The Bridgman method was used to fabricate Sm-Sb-Mn alloy self-forming composites with ordered SmMnsb compounds on the microscale. The effects of Sm on the microstructures and eutectic flat interfacial growth conditions were studied : The addition of Sm increases the magnetization of Sb-Mn alloy composite and makes it easy to magnetize at room temperature and high temperature. However, when the content of Sm is 5%, the Sm-rich phase appears, the magnetization decreases and the growth rate increases, forming a mixed phase and a two-phase eutectic structure, although its magnetization is more completely two-phase eutectic composite Low, but still higher than that of Sm-free MuSb / Sb eutectic composites, and showed spin reorientation.