摘要
将非晶态Ｆｅ－Ｚｒ－Ｂ合金经不同温度退火制备成纳米晶合金，测量了它们的热膨胀曲线和饱和磁化强度．初步结果表明，纳米晶的形成导致Ｃｕｒｉｅ温度（ＴＣ）以下的热膨胀系数和７７Ｋ下的饱和磁矩急剧增加，而ＴＣ以上的热膨胀系数几乎不随退火温度变化，用因瓦效应解释了实验结果．
Thermal expansion curves and magnetic properties for the nanocrystalline Fe-Zr-B alloys prepared by annealing amorphous alloys at various temperatures were measured. Preliminary results show that the formation of nanocrystallites gives a drastic increase of the thermal expansion coefficient below Curie temperature TC and the saturation magnetic moment at 77 K, while the expansion coefficient above the TC remains almost unchanged as annealing temperature increase. Invar effect has been proposed to explain the observed results.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第6期B265-B269,共5页
Acta Metallurgica Sinica
基金
中国科学院金属研究所快速凝固非平衡态合金开放实验室资助
关键词
铁锆硼合金
热膨胀
磁性
纳米晶
thermal expansion, saturation magnetic moment, nanocrystalline alloy,amorphous alloy, Fe-Zr-B alloy
