磁热疗用磁粉产热率的影响因素

为了研究和开发高产热率磁热疗用磁粉,综合分析了组分与粒径、制备方法、表面包覆对磁粉产热率的影响规律,对这些因素与产热率之间的定性关系进行了总结,并指出了其定量关系的研究方向。结果表明:不同组分的磁粉磁性能不同因而产热率不同,相同组分不同粒径和粒径分布的磁粉对产热率的影响存在一定的规律;制备方法影响粒径从而对产热率有影响;合理的包覆材料和包覆量可提高产热率。

Factors Affecting on Production Rate of Magnetic Powders for Magnetic Hyperthermia

In order to research and develop the magnetic powder with high heat production rate for magnetic hyperthermia, the effects of component and particle size, preparation method, surface coating on the heat production rate were introduced and analyzed. The qualitative relationships between these factors and heat production rate were summarized respectively. The research directions on the quantitative relationships were also pointed out. It was concluded that different components of magnetic powder had different heat production rate because of different magnetic properties, the different size and size distribution of magnetic powders with the same components had certain influence law for heat production rate,the preparation methods affected the size and thus affected heat production rate, the reasonable coating materials and quantity can increase heat production rate.