Introduction of Nitride Bonded Silicon Carbide Sagger:

Our NSiC Crucible Sagger is a high-performance ceramic product made from a mixture of silicon nitride and silicon carbide. Silicon nitride bonded silicon carbide refractories can provide excellent high temperature resistance, corrosion resistance and wear resistance.

This kind of NSiC Crucible Sagger is usually used in chemical reactions or material heating processes in high-temperature furnaces, and can subject to extreme high temperatures and chemically corrosive environments.

Since NSiC Crucible Sagger have extremely high temperature resistance, the combined NSiC Crucible Sagger can work stably at high temperatures and can usually withstand temperatures of 1420℃.

Advantages of Nitride Bonded Silicon Carbide Sagger:

‌1. Exceptional Thermal Stability‌

NSiC Crucible Sagger saggers exhibit outstanding resistance to thermal shock and deformation at temperatures exceeding 1,500°C. The covalent bonding between SiC and Si₃N₄ creates a dense microstructure with low porosity, minimizing crack propagation under rapid temperature fluctuations. This ensures dimensional stability during repeated heating-cooling cycles, a critical advantage in processes like lithium cathode material calcination.

‌2. Enhanced Mechanical Strength‌

The composite structure achieves a flexural strength of 35–45 MPa, 30% higher than traditional clay-bonded saggers. Silicon nitride’s self-reinforcing needle-like crystals act as a "skeleton," effectively absorbing stress and preventing brittle fracture under heavy loads. This mechanical robustness extends service life by 3–5 times compared to conventional alumina saggers.

‌3. Superior Chemical Inertness‌

NSiC Crucible Sagger demonstrates excellent resistance to molten metals, alkaline/acidic atmospheres, and lithium compound corrosion. In battery material production, it prevents contamination from reactive elements like nickel and cobalt, ensuring product purity. Its non-wetting surface also reduces material adhesion, simplifying post-process cleaning.

‌4. Energy Efficiency‌

With a thermal conductivity of 15–18 W/m·K (twice that of oxide-bonded SiC), these saggers enable faster heat transfer, reducing furnace cycle times by 15–20%. Their lightweight design (2.6–2.8 g/cm³ density) further lowers energy consumption during handling and operation.

‌5. Environmental Sustainability‌

NSiC Crucible Sagger's extended lifespan (typically 500+ cycles) drastically reduces waste generation. Additionally, their production emits 40% less CO₂ than sintered silicon carbide alternatives due to lower processing temperatures (1,300–1,450°C vs. 2,000°C).

About us

The company has been committed to product research and development and innovation for many years. Relying on the company's leading silicon carbide manufacturing technology and experience, it is led by high-end talents from well-known universities and institutes. At the same time, it has introduced a large number of outstanding college graduates to form a first-class R&D team. In 2021, At the end of the year, the New Silicon Carbide Industry Technology Research Institute was established, concentrating on the research and development of high-end high-purity silicon carbide raw materials and high-purity silicon carbide products, laying a solid foundation for the company's long-term development.