Zirconia ceramic is a new type of high-tech ceramic. It has the advantages of high strength, high hardness, high toughness, high wear resistance, high temperature resistance, acid and alkali corrosion resistance, and excellent thermal insulation properties. It is widely used in various applications. field. However, the finished zirconia ceramics we see all need to go through the sintering process. During the sintering process, due to various reasons, the shrinkage of the zirconia ceramics sometimes occurs inconsistently. So do you know what are the possible causes of inconsistent shrinkage of zirconia ceramics? And how to solve it? The following editor will introduce to you:

　　Possible reasons for inconsistent shrinkage of zirconia ceramics:

      1. The furnace temperature is uneven and the zirconia ceramic body shrinks inconsistently.   

      2. The heating rate is fast, and temperature conduction creates a gradient. The closer the zirconia ceramic body is to the surface, the faster it shrinks, and the closer it is to the center, the slower it shrinks.   

      3. There is a density gradient. During molding, the internal shrinkage ratio of the zirconia ceramic body is inconsistent due to factors such as pressure and fillers.   

      Solutions to inconsistent shrinkage of zirconia ceramics: 

      1. Control the furnace temperature to keep the temperature of the zirconia ceramics in a uniform state.   

      2. During the sintering process of zirconia ceramics, attention should be paid to the heating rate to avoid excessive heating.   

      3. When molding zirconia ceramics, special attention must be paid to the control of density gradient, so as to better ensure a consistent shrinkage ratio within the green body.   In sum