Magnetostriction( ) |
¡Ý1000¡Á10-6(80kA/m,10MPa) |
| Young's Modulus | (2.5 ¡« 6.5)¡Á1010N/m2 |
| Tensile Strength | ¡Ý25MPa |
| Compressive Strength | ¡Ý260MPa |
| Thermal Expansion Coefficient | (8 ¡« 12)¡Á10-6/¡æ |
| Curie Temperature | 380¡æ |
| Coupling Factor | 0.65 ¡« 0.75 |
| Sound Velocity | 1700 ¡« 2600 m/s |
| Operating Temperature | -40 ¡« 150¡æ |
| Density | 9.15 ¡« 9.25g/cm3 |
| Energy Density | 14 ¡« 25kJ/m3 |
| Relative Permeability | 3 ¡« 15 |
| Conductivity | (60 — 130)¡Á10-8¦¸.m |
| Heat Capacity | 0.35kJ/kg.k |
| Response Time | £¼1µs |
| Precision | 10-1 ¡« 10-3µm |
| Response Range of Frequency | 1 ¡« 104Hz |
Curves of Magnetostriction
vs.Magmtic Field H for
Tb-Dy-Fe Giant magnetostrictive Rod at Different Compressive Stress