Magnetic properties of an iron ore sample after microwave heating

▶ The effect of microwave radiation on the magnetic properties of iron ore was investigated. ▶ Increasing in radiation time up to 60 s results increasing total magnetism saturation and remnant magnetization. ▶ With further increasing in microwave radiation time to 120 s, the total magnetism saturation and remnant magnetization were decreased. ▶ Microwave radiation has a significant effect upon magnetic properties of iron ore. ▶ Excessive radiation has negative effect and reduces the magnetic susceptibility of iron ore.