永磁鐵氧體材料物理特性
參數(shù)Parameter | 符號(hào)Mark | 單位Unit | 數(shù)值Value |
| 回復(fù)磁導(dǎo)率Recoil permeability | μrec | Gs/Oe | 1.05-1.3 |
| 居里溫度 Curie temperature | Tc | ℃ | 450 |
| 剩磁溫度系數(shù) The coefficient of demagnetization to temperature | α(Br) | ℃-1 | -0.2%(0-100℃) |
| 磁化強(qiáng)度矯頑力的溫度系數(shù) 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 |
| 電阻率 Resistivity | ρ | Ω,cm | ≥ 106 |
| 線膨脹系數(shù) The coefficient of linear expansion | α | ℃-1 | 7-15×10-6 |
| 硬度Hardness | HV | - | 480-580 |
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