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Rulon Bearings

CeramTec ATZ Alumina Toughened Zirconia, Dental Grade
Categories: Ceramic; Oxide; Zirconium Oxide

Material Notes: ATZ is an alumina toughened zirconia used in dental applications.

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Physical PropertiesMetricEnglishComments
Density 5.48 g/cc0.198 lb/in³DIN EN 623-2
Water Absorption 0.00 %0.00 %ASTM-C373
Particle Size 0.25 - 0.35 µm0.25 - 0.35 µmGrain
Weibull Modulus >= 10>= 10DIN ENV 843-5
 
Mechanical PropertiesMetricEnglishComments
Vickers Microhardness 15001500HV 0.5; DIN ENV 843-4
Tensile Modulus 260 GPa37700 ksiYoung's; DIN ENV 843-2
Flexural Strength 1600 MPa232000 psiBending Strength; 4-Point; DIN ENV 843-1
Poissons Ratio 0.280.28DIN ENV 843-2
Fracture Toughness 4.70 MPa-m½4.28 ksi-in½Vickers
 
Component Elements PropertiesMetricEnglishComments
Al2O3 18 - 22 %18 - 22 %
HfO2 1.0 - 2.0 %1.0 - 2.0 %
Y2O3 3.6 - 4.1 %3.6 - 4.1 %
ZrO2 71 - 74 %71 - 74 %
 
Descriptive Properties
ColorWhite
Monoclinic Content (%)< 5
Other Oxides (%)< 0.1

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