Technical Data
Zirconia (Zirconium Oxide, ZrO2)
![Alumina image](../../../image2018/material/alumina/alumina_pic01.png)
Zirconia, mainly consisting of ZrO2, has the highest mechanical strength and fracture toughness at room temperature of all major fine ceramics. It is used to make cutting blades, scissors and knives. It is also used for pump parts due to its superior surface smoothness.
Related products for ZirconiaFeatures
Zirconia has excellent mechanical properties, with higher strength and fracture toughness than alumina.
It is also used in milling machines, sliding parts and cutting blades.
Zirconia exhibits great heat insulation, as its thermal conductivity is less than 1/10 that of other ceramics.
Configuration
Dimensional precision achieved by machining
When dimensional precision is required for machined ceramics, Kyocera is capable of achieving the tolerances as shown in the table below. If greater tolerances are required, please consult us.
MACHINING DIMENSIONAL PRECISION
(Data are in mm unless otherwise specified)
1.Ground ceramic blocks and plates
![Ground ceramic blocks and plates](../../../image2018/material/zirconia/zirconia_table01.png)
2.Round and Square Bars
![Round and Square Bars](../../../image2018/material/zirconia/zirconia_table02.png)
PRECISION MACHINED PRODUCTS
Ultra-precision is possible with Kyocera's unique techniques.
Precision machining is affected by shape and material.
Some practical examples are shown in the table below.
![RECISION MACHINED PRODUCTS](../../../image2018/material/zirconia/zirconia_table03.png)
* Surface roughness depends on the material. The data shown here indicates where alumina is used.
Property
![Property](../../../image2018/material/zirconia/zirconia_table04.png)
* The values are typical material properties and may vary according to products configuration and manufacturing process. For more details, Please feel free to contact us.
* 1: All values for apparent density and bulk density are the same, except for A482R which lists apparent density only.
![Bulk density chart](../../../image2018/material/zirconia/zirconia_graph01.png)
![Hardness chart](../../../image2018/material/zirconia/zirconia_graph02.png)
![Flexural strength chart](../../../image2018/material/zirconia/zirconia_graph03.png)
![Compressive strength chart](../../../image2018/material/zirconia/zirconia_graph04.png)
![Young's modulus chart](../../../image2018/material/zirconia/zirconia_graph05.png)
![Flexural strength vs. temperature chart](../../../image2018/material/zirconia/zirconia_graph06.png)
![Thermal expansion chart](../../../image2018/material/zirconia/zirconia_graph07.png)
![Thermal conductivity chart](../../../image2018/material/zirconia/zirconia_graph08.png)
![Heat shock resistance chart](../../../image2018/material/zirconia/zirconia_graph09.png)
![Chemical resistance chart (30 min boiling)](../../../image2018/material/zirconia/zirconia_graph11.png)
![Unit conversion table of stress & Unit conversion table of thermal conductivity](../../../image2018/material/zirconia/zirconia_graph12.png)