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:
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3-point bending strength: 1200+/-50 MPA
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Sintering density: 6.07-6.09g/cm3
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Young’s modulus: 210Gpa
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Crystallite size: 32mm
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Particle size: 0.43um
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Granule size: 52um
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Fracture toughness: 9 Mpa.m1/2
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Thermal conductivity: 3.0 W/mk
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Coefficient of thermal expansion(100-500°C): 10.5*10-6/k
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Chemical solubility: 2.5ug/cm2
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Radioactivity: 0.015 Bq/g
Chemical composition:
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ZrO2+HfO2+Y2O3+ Al2O3 : 99.6
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ZrO2: 91.6
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HfO2: 3.0
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Other oxide: <0.15
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Y2O3 : 5.15+/-0.20wt%
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Al2O3: 0.25+/-0.10wt%