Project Description

Sample Products

Zirconia Oxide

Zirconia Oxide 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 maintains efficient manufacturing facilities that support quick-turn prototype development and high volume production.

Advanced Finishing Services

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

Manufacturing Options

  • Injection molding
  • Roll compacting
  • Co-firing
  • Isostatic pressing
  • Dry pressing

Material Properties Yttria (3mol) Partially Stabilized Zirconia

Density gm/cc 6.02
Crystal Size (Average) Microns 1
Water absorption (open porosity) % 0
Gas permeability % 0
Color ¯ Ivory
Flexural Strength (MOR) 20°C MPa (psi x 103)  1240 (180)
Elastic Modulus 20°C GPa (psi x 106)  210 (30)
Poisson’s Ratio 20°C ¯  0.23
Compressive Strength 20°C MPa (psi x 103)  2500 (363)
Hardness GPa (kg/mm2)  12.7 (1300)
R45N  81
Tensile Strength 25°C MPa (psi x 103)  –
Fracture Toughness K(I c) mpa m1/2  13
Thermal Conductivity 20°C W/m K 2.2
Coefficient of Thermal Expansion 25-1000°C X 10-6/°C 10.3
Specific Heat 100°C 880 J/kg*K 400
Thermal Shock Resistance   ΔTc  °C 350
 Maximum Use Temperature   °C  1500
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil)  9.0 (228)
Dielectric Constant 1 MHz 25°C  29.0
Dielectric Loss (tan delta) 1 MHz 25°C  0.001
Volume Resistivity 25°C ohm-cm
                            500°C ohm-cm
                            1000°C ohm-cm
*The chart is intended to illustrate typical properties. Property values vary with method of manufacture, size, and shape of part. Data contained herein is not to be construed as absolute and does not constitute a representation or warranty for which Ortech, Inc. assumes legal responsibility.

Material Properties Magnesia Partially Stabilized Zirconia

Density gm/cc 5.72
Crystal Size (Average) Microns 35
Water absorption (open porosity) % 0
Gas permeability % 0
Color ¯ Ivory
Flexural Strength (MOR) 20°C MPa (psi x 103)  900 (130)
Elastic Modulus 20°C GPa (psi x 106)  200 (29)
Poisson’s Ratio 20°C ¯  0.30
Compressive Strength 20°C MPa (psi x 103)  1750 (254)
Hardness GPa (kg/mm2)  11.8 (1200)
R45N  77
Tensile Strength 25°C MPa (psi x 103)  483 (70)
Fracture Toughness K(I c) mpa m1/2  11
Thermal Conductivity 20°C W/m K 2.2
Coefficient of Thermal Expansion 25-1000°C X 10-6/°C 10.2
Specific Heat 100°C 880 J/kg*K 400
Thermal Shock Resistance   ΔTc  °C 350
 Maximum Use Temperature   °C  500