Er(Ni1-xCox)磁性蓄冷材料的研究
Study of Magnetic Properties and Specific Heat on Magnetic Regenerators Er(Ni1-xCox)(x-0,0.1,0.2)
-
摘要: 研究了实用型Er(Ni1-xCox)(x-0,0.1,0.2)材料的制备方法和它们的物理性能.用Co部分替代Ni后,该材料的居里温度降至10K范围内,在温度低于10K的温区内,Er(Ni1-xCox)(x=0.1,0.2)材料的比热容远大于传统的蓄冷材料金属pb和其他新型Er系磁性蓄冷材料的比热容.磁墒变计算结果表明,Er(Ni1-xCox)(x=0.1,0.2)材料的Er+3离子有效J值约为3/2。Abstract: Magnetic regenerators Er(Ni1-xCox)(x-0,0.1,0.2) have been studied Curie temperature of Er(Ni1-xCox)(x-0,0.1,0.2) decreases to the temperature range below 10 K by replacing Co with Ni partially. Magnetic regenerators Er(Ni1-xCox)(x-0,0.1,0.2) have larger specific heats than Pb and other Er-Ni magnetic regenerators. It is shown that effective value J of total angular momentum of Er+3 ion is about 3/2 from the curves of the specific heats.
下载: