| State-of-the-art processes, precise material controls, and our dedication to operational excellence built CoorsTek’s latest zirconia offering for severe service environments – Dura-ZTM Partially-Stabilized Zirconia. %20-%20Zirconia%20Ceramics%20Available%20from%20CoorsTek_files/image004.jpg)
This material offers a significant performance gain over competitive materials and our own standard TTZ: • • 40% stronger than TTZ • • 60% greater fracture toughness than TTZ • • Equivalence to TTZ in all other measured properties • • Best-in-industry fatigue resistance behavior %20-%20Zirconia%20Ceramics%20Available%20from%20CoorsTek_files/image005.gif)
Figure 1. Metal and zirconia materials endurance limit at 100,000,000 cycles. New Metric for Advanced Ceramic Components Utilizing test methods normally reserved for metal components, an independent laboratory has tested and verified that CoorsTek Dura-ZTM Zirconia material exhibits best-in class performance for Endurance Fatigue Limit. In this test, the sample is cyclically loaded to determine the maximum stress allowable for survivability at 100,000,000 cycles. Dura-ZTM Zirconia results are significantly greater than the closest competitive material. Wide Variety of Manufacturing Options Dura-ZTM Zirconia properties can be combined with our state-of-the-art manufacturing processes to result in a cost effective solution for your most stringent engineering problems. CoorsTek maintains efficient, large-scale manufacturing facilities supporting everything from quick-turn prototype development to high-volume production (> 1x108 pieces). These processes include: • Dry Pressing • Isostatic Pressing • Extrusion • Injection Molding Advanced Finishing Services In addition to our wealth of processing methodologies, CoorsTek provides several advanced finishing services including: • Lapping and polishing • Precision grinding • Threading • Laser marking CoorsTek Zirconia Materials and Their Properties | | | Density | g/cc | 5.72 | 5.72 | | Color | – | Ivory | Ivory | | Flexural Strength (MOR) | MPa (psi x 103) | 620 (90) | 860 (125) | | Compressive Strength | MPa (psi x 103) | 1750 (254) | 1750 (254) | | Hardness | Rockwell R45N | 77.5 | 77.5 | | Indention Fracture Toughness | MPa m | 6.2 | 9.9 | | Endurance Limit | kpsi @ 108 cycles | 30 | 52 | | Thermal Conductivity (20 ºC) | W/mK | 2.2 | 2.2 | | Coefficient of Thermal Expansion (25-1000 ºC) | 1x10-6/ ºC | 10.1 | 10.2 | | Thermal Shock Resistance | ºC | 350 | 350 | | Maximum Use Temperature | ºC | 500 | 500 | | Impingement | – | 0.63 | 0.63 | | Rubbing | – | 0.57 | 0.57 | The chart above is intended to illustrate typical properties only. Engineering data is representative. Property values vary somewhat with method of manufacture, size, and shape of part. This data is not to be construed as absolute and does not constitute a warranty for which we assume legal responsibility. Materials and Manufacturing Experts CoorsTek is uniquely capable of providing advanced materials and manufacturing technologies. Let the CoorsTek team help you select the best materials and design for manufacturability. |