We all know that Zinc Oxide has a wide range of applications, and today we will focus on some of the applications of Zinc Oxide in magnetic materials.
With the rapid development of computers, transport and communication, optical fiber communication, EMC, DVD, digital TV and new lighting lamps, the market for soft ferrite has opened up a larger market. In this market, the development of soft ferrite products is fast.
The development of soft ferrite products, and also for the upstream of iron oxide, manganese oxide, Zinc Oxide material market expanded more space.
Ferrite is a magnetic compound oxide composed of iron oxide and iron or rare earth oxide. The resistivity of ferrite is much larger than that of metal and alloy magnetic materials, so it is sometimes called the "magnetic semiconductor".
The so-called soft magnetic material is magnetically easy to be magnetized, but also easy to lose magnetism. The area around the hysteresis loop is very small, and the force of the magnetic force is very low. The magnetization curve rises very steeply before saturation, that is, the permeability is very large. Popular point is relatively hard and soft magnetic stresses, magnetic core at the magnetized magnetic not too easy to recede, such as iron absorption, and the soft magnetic core to wound on the coil generates a magnetic flux that is inductively strengthened, can be made of soft magnetic core inductor or transformer components, pure iron is impossible. The main material of soft ferrite is: iron oxide, manganese oxide, Zinc Oxide, Magnesium Oxide, such as Mn Zn ferrite, nickel zinc ferrite and magnesium zinc ferrite. Soft ferrite is a kind of ferrite material with wide use, many varieties, large quantity and high output value. It is mainly used as a variety of inductive components, such as the core of the filter and the core of the transformer core.
Production of soft ferrite materials is needed, the more the amount of Zinc Oxide, Chinese is a big country of production of world magnetic materials, magnetic materials industry in western developed countries also have to China transfer, in recent years, some famous foreign magnetic materials manufacturing enterprises also see good Chinese, such as Japan's TDK, FDK NICERAMIC, European PHILIPS, German VAC and so on, as well as the United States, South Korea, to advance China, foreign companies and local magnetic production company contact as a powerful faction in the soft ferrite production of the more than 400, the development of soft ferrite provides greater the market for Zinc Oxide, also promoted the technical progress of high quality production of Zinc Oxide.
Zinc Oxide, which is used for soft magnetic ferrite materials, is mainly used for high purity Zinc Oxide produced by indirect method. The Zinc Oxide products annual capacity has more than 1 million tons, the indirect method Zinc Oxide 99.7% annual production capacity of 300 thousand tons, the direct method of Zinc Oxide 85-99.5%'s annual production capacity has exceeded 600 thousand tons, wet Zinc Oxide 90-99% annual production capacity has more than 100 thousand tons, the production of nano Zinc Oxide products only a handful of companies.
The above is some of the applications of Zinc Oxide in magnetic materials, and hope to help you.