Zirconia Oxide Overview

Zirconia Oxide (ZrO2) has the highest strength and toughness at room temperature of all the advanced ceramic materials. The fine grain size allows for extremely smooth surfaces and sharp edges.
Applications include scissors, knifes, slitters, pump shafts, metal-forming tools, fixtures, tweezers, wire drawing rings, bearing sleeves and valves.

Ortech provides state-of-the-art materials manufactured by the most cost-effective processes. Ortech Zirconia Oxide (ZrO2) maintains efficient manufacturing facilities that support quick-turn prototype development and high volume production.

Manufacturing Processes

Injection molding
Dry pressing
Isostatic pressing
Extrusion

Advanced Finishing Services

Precision grinding and lapping
Laser machining
Engineering design and support
Threaded components

Material Properties Chart

	Magnesia Partially Stabilized Zirconia	Yttria (3mol) Partially Stabilized Zirconia
Density g/cm3	5.72	6.02
Crystal Size Average Microns	35	1
Water Absorption %	0	0
Gas Permeability –	0	0
Color –	Ivory	Ivory
Flexural Strength (MOR) 20° C MPa (psi x 103)	900 (130)	1240 (180)
Elastic Modulus 20° C GPa (psi x 106)	200 (29)	210 (30)
Poisson’s Ratio 20° C –	0.30	0.30
Compressive Strength 20° C MPa (psi x 103)	1750 (254)	2500 (363)
Hardness Rockwell R45N	77	81
Tensile Strength 25° C MPa (psi x 103)	483 (70)	–
Fracture Toughness K(I c) MPam1/2	11	13
Thermal Conductivity 20° C W/m K	2.2	2.2
Coefficient of Thermal Expansion 25-1000° C 1X 10-6/°C	10.2	10.3
Specific Heat 100° C J/kg*K	400	400
Thermal Shock Resistance Δ Tc °C	350	350
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil)	9.4 (240)	9.0 (228)
Dielectric Constant 1 MHz 25° C	28.0	29.0
Dielectric Loss (tan delta) 1 MHz 25° C	0.001	0.001
Volume Resistivity 25° C ohm-cm	> 10 13	> 10 13
Volume Resistivity 500° C ohm-cm	2 x 10 5	2 x 10 4
Volume Resistivity 1000° C ohm-cm	< 10 3	< 10 3