Silicon Nitride Crucibles
Inquiry NowProduct Description
Silicon Nitride Crucibles – High-Strength Si₃N₄ Crucibles for Lab & Industrial Applications
M-Kube supplies premium silicon nitride crucibles (Si₃N₄ crucibles) across Australia, engineered from >99.5% pure silicon nitride. Known for their exceptional thermal shock resistance, high mechanical strength, and chemical stability, these crucibles are widely used in laboratories, metallurgy, semiconductors, and advanced material industries.
As a trusted silicon nitride crucible supplier in Australia, M-Kube offers standard and custom Si₃N₄ crucibles for sale to meet the most demanding applications.
Key Features of Si₃N₄ Crucibles
- Superior thermal shock resistance – withstands rapid heating and cooling
- Exceptional mechanical strength and durability
- Resistant to molten metals, acids, and alkalis
- Excellent electrical insulation with high resistivity
- Longer service life compared to graphite or alumina crucibles
Technical Specifications and Typical Elemental Composition: Silicon Nitride Crucibles
| Item | Si3N4 |
| Si3N4 (%) | >99.5 |
| C+ TiO2 + Fe2O3 + SiO2 | <0.5% |
| Bulk Density (g/cm3) | 3.26 +/- 0.02 |
| Elastic modulus (GPa) | 300～320 |
| Bending strength (MPa) | 900～1000 |
| Hardness (GPa) | 18 – 20 |
| Fracture toughness (MPa•m1/2) | 7.0～9.0 |
| Specific resistance ratio | 10 18 |
| Poisson’s ratio | 0.25 |
| Linear expansion coefficient 10-6K-1 | 3.1～3.3 |
| Weibull modulus | 12～15 |
| Thermal conductivity W•（m•K)-1 | 15~20 |
| Thermal shock resistance | Excellent |
| Corrosion resistance | Excellent |
| Size stability | Excellent |
| Magnetic | NO |
Applications of Silicon Nitride Crucibles
Our Si₃N₄ ceramic crucibles are widely used in:
- Metallurgy & Foundries – for melting and refining non-ferrous metals
- Laboratories – as Si₃N₄ crucibles for lab use in high-temp experiments
- Semiconductor Industry – for silicon wafer, thin-film, and advanced material processing
- Energy & Research – used in batteries, fuel cells, and aerospace materials
- Chemical Industry – safe handling of corrosive or reactive chemicals
Why Choose M-Kube – Silicon Nitride Crucible Supplier in Australia?
- High-purity Si₃N₄ crucibles (>99.5%)
- Precision-engineered with excellent mechanical and thermal stability
- Available in standard and custom designs
- Competitive pricing for bulk or small-volume orders
- Fast Australia-wide delivery with expert support
At M-Kube, all our ceramic and refractory products are manufactured in ISO-certified facilities with the capability to meet and comply with ASTM, ISO, and other international standards. This ensures every product delivers consistent quality, reliability, and performance, whether you require standard parts or fully customized solutions.
Buy Silicon Nitride Crucibles in Australia – Request a Quote
Looking for a reliable Si₃N₄ crucible lab supplier or an industrial-grade silicon nitride crucible for sale? M-Kube delivers advanced ceramic crucibles designed for durability and precision.
📞 Call +61-478-594-746
📧 Email info@mkube.com.au
For expert advice or to discuss your custom silicon nitride crucible requirements, contact M-Kube today.
Product FAQ's
What is the temperature resistance of a Si3N4 ceramic crucible?
A Si3N4 ceramic crucible can withstand temperatures up to 1450–1600°C in continuous use.
- Resistant to thermal shock from rapid heating/cooling
- Stable in oxidizing and reducing atmospheres
This makes them ideal for aluminum and magnesium foundry processes.
Is a silicon nitride crucible reusable?
Yes — unlike some ceramic crucibles, Si3N4 crucibles are highly durable and can be reused multiple times. Their non-wetting property prevents molten metals from sticking, extending their lifespan.
How much does a silicon nitride crucible cost?
The Si3N4 crucible price depends on:
- Size and capacity (small lab crucibles vs. large foundry crucibles)
- Purity and grade of Si3N4
- Supplier and customization level
Typically, small lab crucibles are more affordable, while industrial-grade crucibles cost more due to precision manufacturing.
Where can I buy silicon nitride crucibles?
You can find silicon nitride crucibles for sale from:
- Specialized Si3N4 crucible suppliers
- High-temperature ceramic distributors
- Laboratory equipment vendors
Always ensure the supplier provides material certification and batch quality tests.
What should I check when selecting a silicon nitride crucible supplier?
- Material purity certification
- Thermal shock resistance testing
- Custom crucible availability (size, wall thickness, shapes)
- ISO/ASTM compliance
- Proven reliability in metallurgy or semiconductor supply chains
A trustworthy silicon nitride crucible supplier should also offer technical support and competitive pricing.
Can silicon nitride crucibles be customized?
Yes — custom Si3N4 crucibles can be fabricated in:
- Different capacities (from small lab crucibles to large foundry crucibles)
- Special geometries (round, square, or deep crucibles)
- Variable wall thickness for different heating rates
Are Si3N4 crucibles suitable for lab use?
Yes — many Si3N4 ceramic crucible lab suppliers provide small-volume crucibles designed for:
- Thermal analysis
- High-temperature corrosion testing
- R&D in materials science
They are valued for their high purity and repeatable performance.
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