1.Products information                                                                                                

Amann Girrbach system compatible zirconia blocks

Size: ZI71-89*71*12/14/16/18/20/25

Transparency:

*Super trnslucent or prettau compatible zirconia are for full contour crown and bridges; light transmittance higher than 40%.

* High translucentfor common coping and bridge; light transmittance higher than 30%.

2. Chemical compositions                                                                                            

ZrO2+HfO2+Y2O3+ Al2O3 : 99.6

ZrO2:                                     91.6
Y2O3 :                                   5.15+/-0.20wt%

HfO2:                                    3.0
Al2O3:                                   0.25+/-0.10wt%

Other oxide:                           <0.15

3. Physical properties                                                                                                    

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℃): 10.5*10-6/k

Chemical solubility:            2.5ug/cm2

Radioactivity:                       0.015 Bq/g

4. Package and delivery                                                                                                 

Each in a box, and delivery by DHL,Fedex,UPS,TNT etc.