Preparation of induction heating element having self-temperature controllability

高频磁场下的发热材料由磁性半导体的锰锌铁氧体、PTC半导体的掺Ce的钛酸钡(CBT)和软化温度较低的玻璃组成。研究了它们的电学、磁学和生热性能。在高频磁场作用下，铁氧体的涡流损耗主要参与生热。复合材料的生热表现出与铁素体含量一致的规律。然而，复合材料在控制铁氧体的涡流方面不能推广。

Heat generation materials under high frequency magnetic field were composed from manganese-zinc ferrite of magnetic semiconductor, cerium doped barium titanate (CBT) of PTC semiconductor and glass of low softening temperature. Their electric, magnetic and heat generation properties were investigated. The eddy current loss of the ferrite was found to mainly participate in the heat generation under high frequency magnetic field. The composite materials showed the heat generation in accordance with the content of ferrite. However, the composite could not be extended in controlling the eddy current of the ferrite