Zirconia ceramics Advantages: 1. High strength and high hardness;
2. Good abrasion resistance; 3. High toughness; 4. Low friction
coefficient; 5. Good corrosion resistance; 6. Low thermal
conductivity; 7. The modulus of elasticity and coefficient of
thermal expansion are close to metals. Details: 1.Zirconia ceramics
have the advantages of high hardness, good wear resistance, high
toughness, low coefficient of friction, and good corrosion
resistance. They are widely used in mechanical seals, ball milling
media, cutting tools, ceramic bearings,automotive engine parts,
etc. 2.The wear resistance of zirconia ceramics is 15 times that of
alumina ceramics. The friction coefficient of zirconia ceramics is
only 1/2 of that of alumina ceramics, while the friction
coefficient of alumina ceramics isvery low. 3.The density of
zirconia ceramics is higher than that of alumina ceramics. The
density of alumina ceramics is 3.5. The density of zirconia
ceramics is 6. The texture is more delicate. After grinding, the
surface finish is higher than 9. It is mirror-like,extremely
smooth, and has a smaller coefficient of friction. 4.In addition,
the toughness of zirconia ceramics is excellent, which overcomes
the inherent brittleness of the ceramics, has higher wear
resistance, and greatly extends the service life of the product.
Applications of zirconia ceramic * Structural ceramics: Mainly
include: Y-TZP grinding ball, nozzle, ball valve ball seat, fiber
optic sleeve, drawing die and cutting tool, wear-resistant cutter,
case and strap, bracelet and pendant, ball bearing, etc. *
Functional ceramics: Used as induction heating tubes, refractory
materials, and heating elements. Used in fields such as oxygen
sensors, solid oxide fuel cells, and high-temperature heating
elements. In addition, zirconia is widely used in thermal barrier
coatings, catalyst carriers, medical, health care, refractory
materials, textiles and other fields. Chemical
component:95%ZrO2,5%Y2O3 Density g/cm3 6.02 Water absorption % 0
Sintering temperature C 1540 Hardness HV 1360 Flexural strength Mpa
1400 Compressive strength Mpa 2500 Fracture toughness Mpa.m3/2 7
Thermal expansion coefficient /C 10.2*10-6 Thermal shock resistance
T(C) 360 Thermal conductivity W/m.k(25-300C) 2 /* January 22, 2024
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