China High Precision Quality Zirconia Ceramic Sleeve

Product introduction:
Due to the excellent mechanical strength and toughness, Zirconia alumina ceramic is reputed as the " ceramic steel" among the industry.With the good performance in the electrical insulation, thermal stability, corrosion resistance and wear resistsance, zirconia alumina parts can finish a lot of jobs which the metal and plastic cannot. like the ceramic valve, ceramic piston, ceramic shaft, ceramic knife/blade, ceramic seal ring, ceramic tweezers and ceramic nozzles etc.
Properties of Zirconium Oxide (ZrO2)
ØHigh thermal expansion (α=11 x 10-6/K, similar to some types of steel)
ØExcellent thermal insulation/low thermal conductivity (2.5 to 3 W/m*K)
ØVery high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
ØAbility to conduct oxygen ions(used for the measurement of oxygen partial pressures in lambda probes)

Properties of Alumina Oxide(Al2O3)
High mechanical strength
High frequency insultaion
High temperature resistance
Fine grain strong and smooth
Material Properties:

95% Alumina99% AluminaZirconiaSilicon carbideSilicon nitrideAluminum nitrideMachinable ceramicColourwhiteLight yellowwhiteblackblackgraywhiteDensity (g/cm3)3.7g/cm33.9g/cm36.02g/cm33.2g/cm33.25g/cm33.2g/cm32.48g/cm3Water Absorption0 %0 %0 %0 %0 %0 %0 %Hardness(HV)23.723.716.53320--Flexural Strength(MPa)300MPa400MPa1100MPa450MPa800MPa310MPa91MPaCompressive Strength(MPa)2500MPa2800MPa3600MPa2000MPa2600MPa-340MPaYoung's Modulus Of Elasticity300GPa300GPa320GPa450GPa290GPa310~350GPa65GPaPoisson's Ratio0.230.230.250.140.240.240.29Thermal Conductivity20W/m°C32W/m°C3W/m°C50W/m°C25W/m°C150W/m°C1.46W/m°CDielectric Strength14KV/mm14KV/mm14KV/mm14KV/mm14KV/mm14KV/mm14KV/mmVolume Resistivity(25ºC)>1014Ω·cm>1014Ω·cm>1014Ω·cm>105Ω·cm>1014Ω·cm>1014Ω·cm>1014Ω·cm

This data is typical for laboratory testing and the actual characteristics of a particular production batch may vary.
Why do you choose us:
1. Independent R&D, and strict product quality assurance
2. Inquiry replied within 24 hours.
3. Fast prototype samples fabrication capability