Silicon Nitride Bonded Silicon Carbide (NSiC) Kiln Shelves
Silicon Nitride Bonded Silicon Carbide (NSiC) Kiln Shelves
Product Overview
Our NSiC kiln shelves are high-performance ceramic plates engineered for heavy-load firing applications. Manufactured with silicon carbide grains bonded by a silicon nitride (Si₃N₄) matrix, they combine the wear resistance of SiC with the exceptional strength and oxidation resistance of nitride bonding, making them ideal for demanding kiln environments.
Key Properties
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Max Service Temperature: Up to 1,450°C (1,500°C intermittent)
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Excellent Thermal Shock Resistance: Withstands rapid heating and cooling cycles
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High Load-Bearing Capacity: Superior flexural strength at elevated temperatures
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Outstanding Oxidation Resistance: Nitride bond provides enhanced protection at high temperatures
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Good Chemical Stability: Resistant to most molten metals, slags, and fluxes
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Low Porosity: Dense structure minimizes permeation and contamination
Typical Specifications
| Parameter | Value |
|---|---|
| Bulk Density | ≥ 2.65 g/cm³ |
| Apparent Porosity | ≤ 17% |
| Flexural Strength (RT) | ≥ 80 MPa |
| Flexural Strength (1,200°C) | ≥ 70 MPa |
| Thermal Conductivity (1,000°C) | ≥ 16 W/m·K |
| CTE (RT–1,200°C) | ~5.0 × 10⁻⁶/°C |
| Max Operating Temp | 1,450°C |
Customization Options
We offer full customization to fit your kiln and production requirements:
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Dimensions: Length, width, and thickness tailored to your kiln
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Thickness Range: 5mm – 50mm (or as required)
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Shapes: Rectangular, square, round, or special contours
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Surface Finish: As-sintered or precision ground
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Special Features: Slots, holes, or grooved surfaces for product placement
Typical Applications
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Ceramic tile and sanitary ware firing
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Electronic ceramics and substrate sintering
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Ferrite and magnetic material calcination
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Glass-ceramic processing
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Powder metallurgy and specialty material firing