Korth Kristalle GmbH

Refractive Index


Zirconia (ZrO2)

Properties (ZrO2)   
Transmission Range (50% of total transmission)   0.38... 7 µm (thickness 1mm)  
Refractive Index   n = 2.15026 @0.643 µm; 2.07203 @3.3 µm  
Reflective Loss   24% @3.3 µm 
Density   5.9 g/cm3  
Melting Point   2800°C  
Molecular Weight   123.204  
Thermal_Conductivity   10.5 W/(m·K) @260 K  
Heat Capacity   418 J/(kg·K) @0°C  
Thermal Expansion   10.65 · 10-6 /°C  
Hardness (Mohs)   1160 (8.2)  
Young`s Modulus    
Shear Modulus    
Bulk Modulus    
Rupture Modulus    
Elastic Coefficient   C11 = 394; C12 = 91; C44 = 56 GPa 
Dielectric Constant   7-8 
Solubility in Water   insoluble 
Crystal Structure  Single crystal, synthetic  
Crystal Type  cubic, CaF2 type structure, a = 5.14 Å  
Cleavage Planes    
Poisson Ratio   0.31 
Remarks   available with stabilization of Y203; max. temperature for application: 2500°C; reacts in combination with HF and sulphuric acid  

Transmission spectrum

ZRO2 Y englisch

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