铁氧体方块-尊龙凯时app
永磁铁氧体材料物理特性
参数parameter | 符号mark | 单位unit | 数值value |
| 回复磁导率recoil permeability | μrec | gs/oe | 1.05-1.3 |
| 居里温度 curie temperature | tc | ℃ | 450 |
| 剩磁温度系数 the coefficient of demagnetization to temperature | α(br) | ℃-1 | -0.2%(0-100℃) |
| 磁化强度矫顽力的温度系数 the coefficient of magnetization coercive force to temperature | α(hc) | ℃-1 | 0.2%-0.5%(0-100℃) |
| 密度 density | d | g/cm3 | 4.7-5.0 |
| 电阻率 resistivity | ρ | ω,cm | ≥ 106 |
| 线膨胀系数 the coefficient of linear expansion | α | ℃-1 | 7-15×10-6 |
| 硬度hardness | hv | - | 480-580 |