NiCrAlY薄膜对Sm2Co17磁体高温抗氧化性的影响
晏敏胜, 何进, 冒守栋, 杨丽景, 聂霞, 宋振纶, 詹肇麟

Effect of NiCrAlY Coating on Oxidation Resistance of Sm2Co17 Magnets at High Temperatures
YAN Minsheng, HE Jin, MAO Shoudong, YANG Lijing, NIE Xia, SONG Zhenlun, ZHAN Zhaolin
表1 经不同温度氧化192 h后未沉积和沉积NiCrAlY的Sm2Co17磁体的磁性能
Table 1 Magnetic properties of naked and NiCrAlY-coated Sm2Co17 magnets before and after oxidation of 192 h at 500~700 ℃
Temperature / ℃ Naked magnet NiCrAlY-coated magnets
Hcj / MAm-1 Br / T (BH )max / kJm-3 Hcj / MAm-1 Br / T (BH )max / kJm-3
25 2.69 1.08 219.93 2.68 1.06 210.57
500 0.20 0.38 8.49 2.99 1.05 199.10
600 0.02 0.13 0.48 1.98 0.96 163.93
700 0.01 0.04 0.13 2.12 0.93 133.67