磁性陶瓷 – 铁氧体
Ferrite is a composite oxide mainly composed of iron oxide and other iron or rare earth oxides. 主要是半导体, 其电阻率远高于一般金属磁性材料, 并且具有涡流损耗小的优点. 在高频和微波技术领域, 比如雷达技术, 通信技术, 太空技术, 电子计算机等, 它已被广泛使用.
Classification of ferrites
Cutting of Ferrite
现在, the diamond wire loop cutting technology on the market is used in many cutting fields, such as ceramics, 水晶, 玻璃, 磁性材料, 宝石, ETC. It is also suitable for ferrite cutting, with fast cutting speed and good cutting accuracy.
Ferrite materials which for new energy trams cutting by diamond wire loop saw – Ensoll
https://www.youtube.com/watch?v=xP4t6Yl-1uY
Application of Ferrite
1. Biomedicine
例如, the synthesized multifunctional zinc ferrites nanoparticles have excellent photoluminescence and ferromagnetic properties, and can be used as molecular carriers for hydrophobic and hydrophilic anticancer drugs.
2. Reaction catalysis
Due to the advantages of easy separation of magnetic catalysts, many researchers have paid extensive attention. Nickel ferrites, manganese ferrite and nickel-zinc ferrite were prepared by solid-phase calcination, which were used for the catalytic oxidation reaction of toluene. Studies have shown that the catalytic activity of pure ferrite is not high, while the catalytic activity of mixed oxide is higher. During the calcination process, the catalytic activity is significantly improved due to the strong interaction between the two oxides.
3. Electronic components
Sensors and biosensors composed of ferrites nanomaterials are used to detect analytes at varying trace levels. 与此同时,it are commonly used in microwave devices due to their excellent low electrical conductivity and dielectric loss.
4. Storage field
It materials can be used to make magnetic recorders, which are widely used in the field of information storage. The magnetic materials used for magnetic recording are divided into two categories: magnetic writing and magnetic reading devices, and magnetic writing devices, namely magnetic recording media, whose function is to record and store information.
5. Absorbers
It absorbing materials are both magnetic and dielectric, and have good impedance matching performance. They are the most widely used absorbing materials. And the study of ferrites composites with improved properties by adding auxiliary materials to ferrites is also a current research focus.
