June 20, 2024

Is zirconia functional ceramics resistant to acid and alkali corrosion?

Zirconia functional ceramics is a new type of high-tech ceramics. In addition to ceramics should have high strength, hardness, high temperature resistance, acid and alkali corrosion resistance and high chemical stability, it also has higher toughness than ordinary ceramics.

Zirconia ceramics are new types of ceramics, mainly divided into three types of magnesium-stabilized zirconia ceramics, cerium-stabilized zirconia and yttrium-stabilized zirconia; it has excellent physical and chemical properties not only in scientific research, but also in industrial production. In a wide range of applications, it is an important raw material for refractory materials, high-temperature structural materials and electronic materials. Among various metal oxide ceramic materials, zirconia has excellent high-temperature thermal stability and heat insulation performance, and is most suitable for ceramic coatings and high-temperature refractory products. The zirconium-based ceramic pigment, which uses zirconia ceramics as the main raw material, is an important component of the glaze; the thermal conductivity of zirconia is the lowest among common ceramic materials, and the thermal expansion coefficient is closer to that of metal materials, becoming an important structure Ceramic material; the special crystal structure makes it an important electronic material.

Zirconia ceramics are relatively balanced in acid and alkali resistance, and can be used in medium-strong acid or medium-strong alkali environments under general conditions. Not resistant to high-strength acids and alkalis. If the use environment is more than 1:9 concentration of hydrochloric acid, or greater than 10% concentration of sodium hydroxide solution, there will still be more obvious corrosion.

The properties of zirconia ceramics are wear resistance, high temperature resistance, acid and alkali corrosion resistance, and good insulation. Because their raw materials are relatively cheap and easy to obtain, they are widely used in mechanical injection molding ceramic parts, electronic and electrical ceramics, medical food ceramics, military ceramics, etc. Many industries (remember not to use strong acids and alkalis).