Al2O3 Ceramic And ZRO2 Ceramic
1.Al2O3 Ceramic And ZRO2 Ceramic-Ceramic density comparison:
Zro2 ceramics are twice as dense as al2o3 ceramics. In contrast, zirconia ceramics have better pressure resistance. Comparing the density of materials like Al2O3 ceramic and ZrO2 ceramic is crucial for determining their applications.
2.Toughness comparison
The toughness of zro2 ceramics is 4 times that of al2o3 ceramics.In terms of hardness, Al2O3 ceramic coatings are harder than ZrO2 ceramic coatings.
3.Use comparisons
Alumina ceramics divide into high-purity type and ordinary type. High-purity alumina ceramics have a sintering temperature of up to 1650-1990 °C.It uses as a grinding medium for sodium lamps.
Alumina ceramics value for their light transmittance and alkali metal corrosion resistance. It can use as an integrated circuit substrate. It uses as a high-frequency insulation material in the electronics industry. Al2O3 ceramic and ZrO2 ceramic applications vary significantly due to their unique properties.
Zirconia ceramics have excellent properties such as high melting point and boiling point. They have high hardness, room temperature insulation, high temperature conductivity and so on. Pure ZrO2 is white, yellow or gray when it contains impurities. It is also not easy to separate.
Zirconia ceramics have been widely used in the field of structural ceramics due to their high toughness, high bending strength, high wear resistance, and excellent thermal insulation properties. Their thermal expansion coefficient is close to steel. Mainly used for Y-TZP grinding ball, nozzle, and ball valve seat. Other uses include zirconia mold, zirconia ceramic shaft, zirconia ceramic optical fiber pin, ceramic optical fiber sleeve, ceramic wire drawing die and ceramic knife.
Surface finish comparison
Zirconia ceramic structures have a higher surface finish. They are extremely smooth as a mirror. In addition, the toughness of the zirconia ceramic structure is excellent.
Comparison of ceramic friction coefficients-Al2O3 Ceramic And ZRO2 Ceramic:
The friction coefficient of zirconia ceramics is only 1/2 of that of alumina ceramics. The friction coefficient of alumina ceramics is very low. In practical use, elasticity and hard friction are more important.