Which ceramic material does the valve need to be made of? 

With the development of technology, there are more and more kinds of ceramic materials, but we usually use alumina ceramics, zirconia ceramics and silicon nitride ceramics. Now, if you were to use them to make a ceramic, what would it be? Among the existing ceramic materials, the properties are different, alumina ceramic is one of the relatively low cost materials, and it has a good high temperature resistance, so it is quite popular with users. However, its low bending strength limits its application. Zirconia ceramics make up for the deficiency of alumina ceramics in bending strength. Among these materials, it is a ceramic material with good mechanical properties at room temperature. Many valves, such as ball, seat, disc valve plate are made of Zirconia ceramics. Silicon nitride ceramics, it should be outstanding is high temperature, although from the performance of the ideal ceramic material, but because the cost is too high and affect its use.