Technical Ceramic Components for Downhole Motors and Drilling Tools — Dura‑Z™ Zirconia
(Equipment / Material)
Condition: New
Location or Storage Country: USA
Service Engineering Support: Yes
Warranty: No
Price: Call for price
Description:
CoorsTek manufactures high‑performance technical ceramic components for extreme downhole drilling environments using Dura‑Z™ zirconia — a uniquely formulated MgO partially stabilized zirconia specifically engineered for durability in severe‑service conditions. Dura‑Z™ is a transformation‑toughened zirconia offering superior strength, toughness, wear, and corrosion resistance. Customer testing has confirmed that Dura‑Z™ material is 40% stronger, 60% tougher, and has a fatigue endurance limit 70% higher than the current CoorsTek TTZ material. The material is ideal for mud motor bearings, rotary steerable system (RSS) mechanical seals, and logging‑while‑drilling (LWD) and measurement‑while‑drilling (MWD) tool components. Each component is manufactured to customer designs using precision grinding, brazing, or heat shrink joining technologies
Overview:
| Material Type | MgO Partially Stabilized Zirconia (transformation‑toughened) |
| Density | 5.6 g/cm³ |
| Flexural Strength (MOR) @ 20°C | 545 – 900 MPa |
| Compressive Strength | 1700 MPa |
| Fracture Toughness (KIC) | 6.0 – 11.0 MPa·m¹/² |
| Modulus of Elasticity | 205 GPa |
| Thermal Conductivity | 2.0 – 2.5 W/m·K |
| Coefficient of Thermal Expansion | 10.0 – 10.2 ×10⁻⁶/°C |
| Max Use Temperature | 500 – 1000°C |
| Dielectric Strength (6.35mm) | 9.4 ac‑kV/mm |
| Volume Resistivity (25°C) | 10¹² – 10¹³ Ω·cm |
| Dissipation Factor (1MHz) | 0.001 |
| Thermal Shock Delta Tc | 350°C |
| Applications | Mud motor bearings, RSS mechanical seals, LWD/MWD tool components, valve and pump components, bushings, wear sleeves, down‑hole tools |
| Key Benefits | 40% stronger, 60% tougher, 70% higher fatigue endurance limit than standard TTZ |
Documentation:
Coorstek, Inc.
Locations: 14143 Denver West Pkwy., Golden, CO 80401, USA
Main Products/Services: Technical ceramic components for downhole motors and drilling tools, Tungsten carbide materials (bonded and hot‑pressed), Valves and valve components (abrasion‑resistant, gate, plug, needle, ball valves), Zirconia‑toughened aluminas and zirconia materials, Severe‑service fluid handling components (seals, nozzles, pump components), Custom ceramic manufacturing and finishing services
Year Established: 1910