Zirconium Oxide (ZrO₂) – Unmatched Strength and Stability
Zirconium oxide, also known as zirconia, is a high-performance ceramic offering extreme toughness, thermal insulation, and corrosion resistance. Advanced Hermetic Solutions utilizes ZrO₂ in demanding applications where strength and environmental durability are critical.
Material Properties
- Chemical Formula: ZrO₂
- Density: 5.68 g/cm³
- Melting Point: 2,715°C (4,919°F)
- Boiling Point: 4,300°C (7,770°F)
- Hardness: 8.5 on Mohs scale
- Thermal Conductivity: 2–3 W/m·K
- Electrical Resistivity: >10¹⁴ Ω·cm
- Dielectric Constant: 18–21
- Thermal Expansion: 10.3 × 10⁻⁶ /K
- Fracture Toughness: 5–10 MPa·m¹/²
- Color: White or off-white
- Stabilized Forms: Yttria-stabilized (YSZ), Magnesia-stabilized (MSZ)
Applications in Hermetic Engineering
High-Temperature Insulators
Ideal for electrical and thermal insulation in aerospace and vacuum systems operating at elevated temperatures.
Wear-Resistant Assemblies
Its high fracture toughness and abrasion resistance suit moving or contact-based components such as piston caps and bushings.
Hermetic Feedthrough Isolators
Used in conjunction with metal braze rings to provide stable electrical isolation in high-voltage feedthroughs.
Biomedical and Dental Components
Biocompatible and chemically inert, ZrO₂ is widely used in medical implants, dental crowns, and diagnostic equipment enclosures.
Corrosion-Resistant Seals
Performs exceptionally as a barrier in hermetic seals exposed to acids, alkalis, and salt environments.
Thermal Shock Applications
Maintains mechanical integrity under rapid temperature fluctuations—critical in aerospace and energy systems.
Integrate Zirconium Oxide into Your Hermetic Designs
Discover how zirconia can optimize your thermal, mechanical, and chemical resistance requirements. Consult with Advanced Hermetic Solutions to discuss prototyping, joining, and high-reliability integration.
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