Dental zirconia block description:
1.Super Translucent for Full Contor;
2.High translucent for crown & partial.
3.Vita 16 colors pre-shade available.
4. Application: for every open CADCAM milling system, including: Roland, VHF, Imes-icores, Wieland, etc…. & zirkonzahn,amann
girrbach,sirona cad cam system.
Dental CAD CAM Zirconia block advantages:
1.Made under cold isotalic unaxial pressing and matching,giving a more uniform fit;
2. Shringe adjustable for 20%;
3. Sinterization temperature 1480 celcius 2 hours
Feature of products:
1).Withstanding a grinding pressure up to 1200MPa;
2).precision sintering shrinkage;
3).absolute biocompatibility;
4).optimised density and edge stability;
5).excellent resistance to aging;
6).defect-free structure;
7).Quality Zicronia Crown on a par with Prettau,Zenostar Brands.
Technique property:
- 3-point bending strength: 1200+/-50 MPA
- Sintering density:
6.07-6.09g/cm3
- Young’s modulus: 210Gpa
- Crystallite
size: 32mm
- Particle
size: 0.43um
- Granule
size: 52um
- Fracture toughness: 9 Mpa.m1/2
- Thermal conductivity: 3.0 W/mk
- Coefficient of thermal expansion(100-500°C): 10.5*10-6/k
- Chemical solubility: 2.5ug/cm2
- Radioactivity: 0.015 Bq/g
Chemical composition:
- ZrO2+HfO2+Y2O3+ Al2O3 : 99.6
- ZrO2:
91.6
- HfO2:
3.0
- Other
oxide:
- Y2O3 :
5.15+/-0.20wt%
- Al2O3:
0.25+/-0.10wt%