There are many related products made of ceramics, some of which are for decoration and some for industrial use. The performance of decorative ceramics is basically relatively simple, but the industrial use is different. In order to meet certain usage requirements, ceramics must have some special effects. Ion-conducting ceramics are a kind of industrial ceramics. Are there any defects in this ceramic material?
Ion-conducting ceramics are ceramic products with directional migration of inteal ions, but exteal force is required, and the existence of defects provides high-energy ions and more vacancies that can be occupied by migrating ions. Defects in this regard mainly include vacancy-type defects, interstitial-type defects, dislocations and grain boundaries, substitution-type impurity defects and electronic defects, which will affect the performance of ion-conducting ceramics. In general, the higher the defect concentration, the greater the number of mobile ion sites, thereby increasing the ceramic carrier concentration. At the same time, it also reduces the conductivity activation energy, which greatly increases the conductivity of the ceramic. That is to say, the properties of ion conductor ceramics are closely related to the structure and density of the material.
The Importance of Limiting the Dissolution of engineering ceramics manufacturers Lead and Cadmium in Alumina Ceramics
With the increasing awareness of environmental protection, people's requirements for all aspects are constantly improving, and even the limit requirements for the dissolution of lead and cadmium in alumina ceramic products are getting higher and higher, which requires the improvement of the production process to achieve production standard. Specifically how to do it?
On the one hand, the safety of alumina ceramics is related to the amount of lead and cadmium dissolved, and the relevant standards also impose strict restrictions on this, and the production of ceramic products that do not meet the requirements will be prohibited. In order to avoid the production of unqualified products, the drying process in alumina ceramics can be improved. In the slow drying process, the green body is sprayed alteately up and down with strong wind under a certain temperature and humidity to dry. In this way, the uneven phenomenon in the drying process of ceramic products can be effectively eliminated, so as to obtain high-quality alumina ceramic products
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