Zirconia ceramic substrates are characterized by high toughness, high bending strength, high hardness and high wear
resistance.Zirconia ceramics have a dimensional hardness of 11.5GPa, a density of 6.0g/cm3 and a compressive strength of 2100MPa.Zirconia ceramics are widely used as ductile ceramics with fracture toughness up to 8.0 mpAM1/2.
Advantages:
smooth surface (easy to clean), good toughness, impact resistance, high hardness, wear resistance, low thermal
conductivity (heat insulation), generally no insulation and high temperature resistance
conductivity (heat insulation), generally no insulation and high temperature resistance
Applications: machinery, optical fiber, cutting tools, medical, food, chemical, aerospace
|
Product parameters
|
||||
|
Property Sort
|
Property Content
|
Unit
|
Test Result
|
|
|
Basic Properties |
Appearance/Color
|
_
|
Dense, Fine Crystal/off white
|
|
|
Water Absorption
|
%
|
0
|
||
|
Dimensional Tolerance
|
mm
|
≤±0.1
|
||
|
Thickness Tolerance
|
mm
|
≤±0.05
|
||
|
Volume Density
|
g/cm³
|
3.3
|
||
|
Surface Roughness Ra
|
μm
|
0.25~0.5
|
||
|
Warpage
|
length‰
|
≤2‰
|
||
|
Mechanical Properties |
Flexural Strength
|
MPa
|
≥450
|
|
|
Modulus Of Elasticity
|
GPa
|
320
|
||
|
Moh’s Hardness
|
MPa’m½
|
8
|
||
|
Electrical Properties |
Volume Resistance
|
Ω.cm
|
≥10^13
|
|
|
Dielectric Constant
|
1M Hz
|
8.7
|
||
|
Dielectric Loss
|
1M Hz
|
3×10^_4
|
||
|
Dielectric Strength
|
KV/mm
|
≥17
|
||
|
Thermal Properties
|
Thermal Expansivity
|
X10_6/℃
|
4.4
|
|
|
Specific Heat
|
J/kg*k
|
738
|
||
|
Thermal Conductivity (30℃)
|
W/m*k
|
≥180
|
||
|
Regular Size
|
Standard thickness:0.385mm,0.5mm,0.635mm,0.75mm,1.0mm;
Standard size: 50.8*50.8mm,76*76mm, 101.6*101.6mm, 114.3*114.3mm, 127*127mm, 140*190mm; Customized size and shape is available. |
|||
Ceramic material composition:
– – 95%–99.99% Alumina (Al2O3)
– – Silicon Carbide · Silicon Nitride
– – TTZ: Magnesia partially stabilized Zirconia (ZrO2)
– – YTZP: Yttria partially stabilized Zirconia (ZrO2)
– – ZDY: Yttria fully stabilized Zirconia (ZrO2)
– – Silicon Carbide · Silicon Nitride
– – TTZ: Magnesia partially stabilized Zirconia (ZrO2)
– – YTZP: Yttria partially stabilized Zirconia (ZrO2)
– – ZDY: Yttria fully stabilized Zirconia (ZrO2)
Properties of Zirconium Oxide (ZrO2)
* High thermal expansion (α=11 x 10-6/K, similar to some types of steel)
* Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK)
* Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
* Ability to conduct oxygen ions (used for the measurement of oxygen partial pressures in lambda probes)
* Excellent thermal insulation/low thermal conductivity (2.5 to 3 W/mK)
* Very high resistance to crack propagation, high fracture toughness (6.5 to 8 MPam1/2)
* Ability to conduct oxygen ions (used for the measurement of oxygen partial pressures in lambda probes)
