Zirconia

(

ZrO2

)
Eigenschaften 
Transmission Range % 50
Transmission Range

0.38 - 7 µm (thickness 1mm)

Refractive Index

n = 2.15026 @0.643 µm; 2.07203 @3.3 µm

Reflection 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

Spec. Heat Capacity  

418 J/(kg·K) @0°C

Thermal Expansion  

10.65 · 10-6 /°C

Hardness (Mohs) 

1160 (8.2)

Elastic Coefficient 

C11 = 394; C12 = 91; C44 = 56 GPa

Dielectric Constant

7-8

Solubility in Water 

unsoluble

Crystal Structure  

Single crystal, synthetic

Crystal Type  

cubic, CaF2 type structure, a = 5.14 Å

Poisson Ratio  

0.31

Application  

available with stabilization of Y203; max. temperature for application: 2500°C; reacts in combination with HF and sulphuric acid

Remarkable 
  • It is used both as an optical component as well as a diamond replacement in the jewelry industry or as a ceramic in medical technology
  • Pure ZrO2 has two phase transitions regarding the range from melting point to room temperature whereby the monoclinic crystal structure is stable at room temperature. The cubic high-temperature phase can also be stabilized up to room temperature by adding certain oxides. It is common to add Y2O3 (concentration > 10 mol%)
  • Chemically inert, high temperature resistant, radiation resistant
  • Transmission range from UV to IR (7µm), not birefringent
NOTE: Despite careful research, we do not accept any liability for the correctness of the information provided. Liability claims based on the use of the information are excluded in principle.

Zirconia: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.

Contact/Inquiry

Korth Kristalle

Am Jägersberg 3
24161 Altenholz

+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525

info@korth.de


Contact

Remarkable

  • It is used both as an optical component as well as a diamond replacement in the jewelry industry or as a ceramic in medical technology
  • Pure ZrO2 has two phase transitions regarding the range from melting point to room temperature whereby the monoclinic crystal structure is stable at room temperature. The cubic high-temperature phase can also be stabilized up to room temperature by adding certain oxides. It is common to add Y2O3 (concentration > 10 mol%)
  • Chemically inert, high temperature resistant, radiation resistant
  • Transmission range from UV to IR (7µm), not birefringent