Zirconia Ceramics

Zirconia is most famous high-performance material among all oxide ceramics. Ceramic components made out of Zirconia generally consist of Zirconia as basic material doped with some percentage of other oxides like Yttria (Y2O3) or Magnesia (MgO). Depending on doping material different material properties could be achieved because of influencing the Yttria's microstructure. The "ceramic steel" titled Zirconia is doped with Yttria forming an ultra-fine ductile structure with sub-micron grain formation leading to enormous bending strengths. Magnesia doped qualities are less strong also showing a coarser microstructure.

Zirconia is characterized through its tribological performance (friction and wear) in moving applications and furthermore:
- Excellent fracture toughness
- Very good wear resistance
- High corrosion stability
- Low thermal conductivity
- CTE in range of steel
- comparison of material grades

Applications include scissors, knifes, slitters, pump shafts, metal-forming tools, fixtures, tweezers, wire drawing rings, bearing sleeves and valves. 

All these properties characterize Zirconia (Yttria stab.) as a leading structure material for highest wear stress in several application fields, even medical technology.

UNIPRETEC provides state-of-the-art materials manufactured by the most cost-effective processes.  UNIPRETEC maintains efficient manufacturing facilities that support quick-turn prototype development and high volume production.

Item	Unit	Yttria Stabilized Zirconia
Color	-	white
Density	g/cm3	5.95
Water Absorption	%	0
Young's Modulus	Gpa	205
Vickers Hardness	Gpa	12
Flexural Strength ( at R.T. )	Mpa	900
Compressive Strength ( at R.T. )	Mpa	2200
Thermal Conductivity ( at R.T. )	W/(m.K)	2.2
Thermal Shock Resistance	ΔT(°C)	280-350
Max. Working Temperature ( at R.T. )	°C	850
Volume Resistivity ( at R.T. )	Ω.cm	>10^12
Dielectric Constant  (1 MHz at R.T. )	-	26
Dielectric Strength	kV/mm	-

About UNIPRETEC

UniPreTec, advanced ceramics expert, provides component and custom integrated packaging solutions for Aerospace, Medical, Power Generation & Distribution, Automotive, Process Control & Monitoring, Industrial Equipment, Electronic & Electrical.

Our manufacturing of high-performance ceramic products is based on very high quantities in Alumina, Zirconia, Zirconia Toughened Alumina, Silicon Carbide, Silicon Nitride and further special materials. Along with these materials, we offer several machining from which to choose such as cutting, drilling, sawing, turning, grinding, polishing etc.. Furthermore, our technologies and equipments allow us to provide various and flexible forming processes, like dry pressing, isostatic pressing, extrusion, injection moulding and slip casting. 

However, if you have a need for a specific guide not shown, please send us a drawing, sample or digital picture so we can identify it for quotation. We greatly appreciate an opportunity to serve you and look forward to your requests.