Manufacturing Processes
- Injection molding
- Dry pressing
- Isostatic pressing
- Extrusion
Advanced Finishing Services
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Precision grinding and lapping
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Laser machining
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Engineering design and support
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Threaded components
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.
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 |