High-Stability Crucibles for Reactive Metal & Alloy Melting
Yttria (Y2O3) Crucibles
Our high-purity yttria crucibles (Y₂O₃) offer exceptional chemical stability, high-temperature resistance, and excellent corrosion resistance. They are the ideal solution for melting superalloys and reactive metals.
Key Features of Yttria Crucibles
Extreme Chemical Stability
Yttria is highly non-reactive, making it the superior choice for melting reactive materials, specialty glass, and high-purity alloys without contamination.
High-Temperature Performance
Engineered for extreme thermal environments, our yttria crucibles perform reliably in high-temperature experiments and processes.
Excellent Corrosion Resistance
Demonstrates exceptional resistance to corrosion, making it perfect for use in demanding chemical, electronic, and aerospace applications.
Superior Electrical Insulation
Provides excellent electrical insulation, even at high temperatures, for specialized electronic and mechanical use cases.
Performance Deep Dive
Why Choose Yttria over Alumina?
Unmatched Chemical Inertness
Unlike alumina, Yttria (Y₂O₃) is inert to reactive molten metals like Titanium (Ti), Uranium (U), and molten glass. It is the ultimate choice for preventing contamination in superalloy melting.
Higher Operating Temperature
Capable of withstanding up to 2200°C (vs. 1700°C for alumina).
Plasma Resistance
Offers superior resistance to fluorine and chlorine plasma in semiconductor etching processes.
Note on Thermal Shock
Due to lower thermal conductivity, Yttria requires controlled heating/cooling rates compared to Alumina.
Ideal Applications
Ideal Applications for Yttria Ceramics
The premier choice for high-temperature, reactive processes.
High-Temp Alloy Melting
Aerospace & Mechanical
R&D & Scientific Labs
Electronics & Chemical
Technical Data Sheet
Standard Yttria Crucible Sizes
We offer a range of standard yttria crucible sizes. Please contact us for the full dimension list as we finalize our online catalog.
| Property | Value | Unit |
|---|---|---|
| Yttria Content (Y₂O₃) | 99.1 - 99.9 | % |
| Density | 4.8 - 5.1 | g/cm³ |
| Flexural Strength | 120 - 200 | MPa |
| Compressive Strength | 1500 - 2000 | MPa |
| Elastic Modulus | 170 - 180 | GPa |
| Impact Strength | 4.9 | MPa·m¹/² |
| Weibull Modulus | 8 - 12 | m |
| Vickers Hardness | 650 - 900 | HV0.5 |
| Thermal Expansion | 7.0 - 8.5 | x10⁻⁶/K |
| Thermal Conductivity | 8 - 15 | W/m·K |
| Thermal Shock Resistance | 200 - 350 | ΔT °C |
| Max. Operating Temp. | 1800 - 2200 | °C |
| Volume Resistivity | >10¹⁵ | Ω·cm |
| Dielectric Strength | 15 - 25 | KV/mm |
| Apparent Porosity | < 0.5 | % |
| Dielectric Constant, 1MHz | 12 - 15 | εr |
| Dielectric Loss, 1MHz | 0.0001 - 0.0005 | tanδ |
| Insulation Breakdown | 15 - 25 | KV/mm |
Customization
Custom Yttria Crucibles
We can manufacture custom yttria crucibles, boats, or components to your exact specifications.
- Precision manufacturing based on your CAD drawings or samples.
- Custom diameters, heights, wall thickness, and shapes.
- High-purity Yttria (Y₂O₃) material.
Explore Our Other Ceramic Products
Alumina Ceramics
Zirconia Crucibles
