Zirconia Ceramic Tube
Manufactured from premium yttria-stabilized zirconia (YSZ, ZrO₂ ≥ 99.5%) using advanced isostatic pressing, high-temperature sintering, and precision machining, Meetcera zirconia ceramic tubes deliver superior thermal stability, mechanical reliability, and contamination-free performance in extreme conditions.
Key Performance Highlights
- Extreme high-temperature capability: Long-term use up to 1900–2000°C in air; 2100–2200°C in vacuum/inert atmospheres
- Outstanding fracture toughness & strength: Transformation toughening mechanism provides superior impact resistance compared to alumina
- Superior chemical & corrosion resistance: Inert to acids, alkalis, molten metals, and aggressive slags — minimal contamination
- Low thermal conductivity & excellent dimensional stability: Low expansion coefficient ensures reliability under thermal cycling
Typical Application Scenarios
- Thermocouple protection sheaths and furnace tubes in high-temperature kilns, semiconductor diffusion, and polysilicon ingot furnaces
- Insulation and structural components in solid oxide fuel cells (SOFC) and oxygen sensors
- Precision liners, bushings, and fluid-handling tubes in chemical processing, petrochemical, and abrasive slurry environments
- High-temperature refractory supports, thermal barrier elements, and aerospace/automotive components
Product Performance Specifications
| Property | Typical Value / Range | Remarks |
|---|---|---|
| Material | Yttria-Stabilized Zirconia (YSZ, ZrO₂ ≥99.5%) | 3–8 mol% Y₂O₃ for phase stability & toughness |
| Density | 5.9–6.1 g/cm³ | Fully dense, low porosity |
| Hardness (Vickers) | 1200–1400 HV | High wear resistance |
| Flexural Strength | 900–1300 MPa | Excellent load-bearing |
| Fracture Toughness | 6–10 MPa·m¹/² | Superior to alumina |
| Thermal Expansion Coefficient | 9–11 × 10⁻⁶ / K | Matches many metals |
| Max. Operating Temperature | 1900–2000°C (air) 2100–2200°C (vacuum/inert) | Atmosphere & load dependent |
| Thermal Conductivity | ~2–3 W/m·K | Excellent insulation |
| Surface Finish (Ra) | ≤0.05–0.2 μm (polished available) | Precision tolerances achievable |
FAQ
Q1: Why zirconia tubes over alumina?
A: Higher max temperature (>2000°C), better toughness & impact resistance, superior chemical inertness, longer life in harsh conditions.
Q2: Key usage precautions?
A: Avoid thermal shock (ramp ≤5°C/min above 800°C); handle carefully to prevent chipping; use in controlled atmospheres for peak performance.
