무제 문서

 


     
- Grinding Media


Zirconia Beads.jpg

지르코니아 비드

 

Yittria Stabilized Zirconia Bead

Standard Size of Beads


0.03mm*,0.05mm* , 0.1mm ,0.2mm , 0.3mm , 0.4mm , 0.5mm
0.65mm , 0.8mm , 1.0mm , 1.25mm , 1.5mm
1.75mm , 2.0mm , 2.35mm , 2.5mm
3.0mm , 4.0mm , 5.0mm , 10mm

                           

 

Material

Composition ratio(wt%)

ZrO2 (+HfO2)

94.75±0.60

Y2O3

4.90±0.50

Al2O3

0.30±0.10

Fe2O3

0.01

SiO2

0.01

TiO2

0.01

Na2O

0.01

MgO

0.01


Physical Properties

 

 

 

 

Density(g/cm3) 6.0
Microhardness(Vickers hardness : Hv) 1150-1200
Young's Modulus (GPa) 210-220
Moduluds of Rapture(MPa) 1000
Average Grain Size(μm) 0.3-0.4