Technical Data

Summary

Materials
Alumina 
Al2O3
99,7%/96%/92%
Zirconia:
ZrO2
+Y2O/ +MgO
Boron Nitride
Grade A/Grade ZSBN
Properties
Density
(g/cm3)
2,5
3,93 / 3,72 / 3,65
6,01 /  5,60
1,75
3,2
3,20
1,9 / 2,9
Hardness 
(kg/mm2)
400
1800 / 1400 /1500
1400 / 1500
 –
2.800
1600
– / –
Bending Strength
(kg/mm2)
Poor
40 / 35 / 35
90 / 60
 –
50
80
– / –
Fracture Toughness
(MPam ½)
Poor
3,0 / 2,7 / 2,5
7,0 / 8,0
 –
2,5
6,0
– / –
Thermal Shock
Resistance
(DT)
Good
200 / 200 / 200
250 / 400
Excellent
350
750
Excellent / –
Working Temperature(°C)
800
1500 / 1500 / 1400
800 / 1000
3000
1400
1100
850/1850
Corrosion Resistance:
Acid
Alkali
Good
Good
Excellent / good
Excellent / good
Good / Good
Good / Good

Excellent
Excellent

Excellent
Excellent

Good
Good

Excellent
Excellent

Merit: Machinable
0-poros
Thermal and electrical insulator
High Wear Resistance
High Corrosion Resistance
High Temperature Resistamce
High Wear Resistance.
High Toughness
High thermal
Insulator.
High temperature
strength
Low
surfacefriction
Thermal and
electrical
conductor.
Excellent hardness, wear- and corrosion-resistance
High temperature strength.
Thermal and electrical conductor.
High Thermal
Shock Resistance
High temperature Strength
High Wear Resistance.
High tempereature
Strenght in inert Atmosphere
Thermal and electrical shock resistant.
Thermal and electrical
Conductor.