ZrO₂ – Zirconium Oxide – 山东国晶新材料有限公司

ZrO₂ - Zirconium Oxide

Zirconia Fiber Products Zirconia fiber products are lightweight refractory materials made from yttria-stabilized zirconia fibers. They exhibit no phase transformation and excellent dimensional stability at high temperatures. They can be processed into boards, custom-shaped components, and other geometries with adjustable density. These materials are capable of long-term operation in extreme environments up to 2200°C and offer excellent corrosion resistance.

Characteristic

High-Temperature Resistance: Maximum service temperature up to 2400°C, with long-term use capability at 2200°C.

Extremely Low Thermal Conductivity: 0.099 W/m·K (at 1400°C), providing outstanding thermal insulation performance.

High Purity and Non-Volatile: No volatile components at high temperatures, ensuring clean and stable operation.

Excellent Oxidation and Corrosion Resistance

Customizable Density and Geometry

Parameter

Property	Unit	Value
Density	g/cm³	5.8–6.1
Mohs Hardness	—	8–9
Flexural Strength	MPa	800–1500+
Fracture Toughness (KIC)	MPa·m¹/²	8–15+
Melting Point	°C	~2715
Maximum Service Temperature (YSZ)	°C	~2400 (depending on stabilizer)
Thermal Conductivity (20°C)	W/(m·K)	2.0–3.0
Thermal Expansion Coefficient	K⁻¹	9.0×10⁻⁶ – 11.0×10⁻⁶
Volume Resistivity (20°C)	Ω·cm	>10¹⁰
Dielectric Constant (1 MHz)	—	22–30

Application field solutions

Thermal Field Insulation in Sapphire Crystal Growth Furnaces: Used to maintain a stable high-temperature thermal field, reduce heat loss, and ensure uniform and controllable crystal growth temperature.

Insulation Components for Single Crystal Furnaces: Applied in silicon/sapphire crystal pulling furnaces for thermal insulation, improving thermal efficiency and reducing energy consumption.

High-Temperature Furnace Radiation Shields / Baffles: Used to block heat radiation and convection, enabling zoned temperature control and minimizing heat loss and temperature fluctuations.

Crucible Thermal Insulation Assemblies: Used to wrap and insulate crucibles, maintaining stable high temperatures while reducing overall heat loss.

Sapphire Annealing Furnace Insulation Components: Used in annealing processes for thermal insulation and temperature control, preventing thermal shock and avoiding crystal cracking due to stress.