Machining Examples

Zirconia (ZrO2) – Custom Machined Parts

Zirconium Dioxide, commonly known as Zirconia, is a high-performance ceramic material which exhibits excellent mechanical properties such as high hardness and fracture toughness. This makes zirconia ideal for a variety of wear resistance applications.
It is difficult to manufacture zirconia in large sizes compared to other oxide materials like alumina. In addition, zirconia is a relatively expensive material, and its use is usually limited to small parts / components which require high bending strength and resistance to fracture, chipping and cracking.

Zirconia Properties

Vickers Hardness
Flexural Strength
Fracture Toughness
Max Use Temperature℃) Coefficient of Thermal Expansion
Thermal Conductivity
Thermal Shock Resistance(℃) Chemical Resistance
Chemical Formula
ZrO₂ 13 1000 6 Not suitable for very high temperature applications. 7.7 3 280 Good

For more information, see Material Guide

Zirconia – Key Properties & Popular Applications

Key Properties Applications
High Strength Zirconia is an exceptionally strong ceramic. Due to its high bending strength and fracture toughness, it resists cracking, bending or breaking. It can also withstand severe impacts and heavy loads. ■High load-bearing parts
■High impact-resistant parts
■Cutting tools such as blades and knives
Low Thermal Conductivity Zirconia is an excellent thermal insulator due to its very low thermal conductivity. ■Heat insulation parts
Good Chemical Property Zirconia resists acid and alkali attack. ■Pump parts & valve components
Excellent Wear Resistance Zirconia is a popular material for parts used in high friction environments. ■Wear-resistant parts
■Pistons & liners

Available Sizes and Machining Capability

Availability Sizes(mm) Machining Capability Sizes(mm)
Plate Φ300×30 Hole diameter Φ0.2 or more
Rod Φ50×300 Hole depth 150 or less
Groove width 0.1 or more Max. hole number 100
Max. Groove(pocket) depth 30 Thread size M2 or more

Ceramics List

  • Alumina(Al₂O₃)

    Excellent electrical insulation properties , High temperature resistance , Plasma resistance , High hardness , Wear resistance

  • Aluminum nitride(AlN)

    High thermal conductivity , High temperature resistance , Low thermal expansion , Excellent electrical insulation properties , Plasma resistant , Corrosion resistant

  • Zirconia(ZrO2)

    High fracture toughness , Low thermal conductivity , Wear resistant

  • Silicon carbide(SiC)

    High hardness , High thermal conductivity , High mechanical strength , Corrosion resistant

  • Silicon Nitride (Si3N4)

    High fracture toughness , Low thermal expansion , Wear resistant , Good thermal shock resistance

  • Machinable Ceramics

    Excellent electrical insulation properties , High machinability , High temperature resistance

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