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High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar
| Place of Origin | Handan |
|---|---|
| Brand Name | TM |
| Certification | ISO9001 |
| Minimum Order Quantity | 1 Piece |
| Price | $1.5~$5000 Per Piece |
| Packaging Details | Wooden Cages or Heavy Carton |
| Delivery Time | 10-15 Work Days |
| Payment Terms | T/T |
| Supply Ability | 200 Pieces per Month |
Product Details
| Type | Custom Ceramic Block | Weight | Depends On Size And Material Density |
|---|---|---|---|
| Material | Silicone Nitride | Durability | High Durability Under High Temperature Conditions |
| Thermal Shockresistance | High | Tolerance | ±0.02mm |
| Surface Roughness | Ra0.3 | Chemical Resistance | Resistant To Acids, Alkalis, And Molten Metals |
| Temperatureresistance | Up To 1400°C Or Higher | Shape | Customized |
| Size | Various Sizes Available | Usage | Melting, Calcining, And Chemical Reactions |
| Color | Typically Black Or Grey | Finish | Smooth Surface |
| Highlight | high toughness silicon nitride ceramic,high toughness ceramic bar,custom ceramic bar |
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Product Description
High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Ceramic Bar for High‑Temperature Application
High Toughness Silicon Nitride Block
Silicon nitride block is high‑performance structural ceramic component sintered under high‑temperature‑pressure conditions. It features high‑temperature strength, excellent fracture toughness, superior wear resistance, low thermal expansion coefficient and outstanding thermal‑shock resistance. With good corrosion resistance against most acids, alkalis and molten metals, silicon nitride blocks are widely applied in mechanical, metallurgical, automotive and semiconductor industries.
Our silicon nitride solid blocks can be machined into custom dimensions. The material maintains stable mechanical properties under high‑temperature working conditions, far outperforming alumina and zirconia ceramics in impact‑resistant scenarios. Low density reduces overall component weight while preserving high mechanical load‑bearing capacity.
Si3N4 Ceramic Parts are a man made compound synthesized through several different chemical reaction methods. they are pressed and sintered by well developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts with a striking appearance.
■ High Mechanical Strength & Wear Resistance
High hardness and excellent bending strength. Resist repeated friction, impact and cyclic assembly‑disassembly. Slow surface abrasion, preserves precise mounting hole tolerance for long‑term service life.
■ Low Thermal Expansion & Stable Fit Clearance
Minimal thermal deformation when temperature rises. Avoid jamming or loose fit caused by thermal expansion, keep consistent positioning accuracy even under periodic heating‑cooling cycles.
■ Superior Thermal Shock Resistance
Excellent resistance to rapid cold‑hot alternation. Hard to crack under frequent temperature fluctuation, reliable for high‑temperature working stations.
■ Excellent Corrosion & Oxidation Resistance
Chemically inert to acids, alkalis, salt mist and most industrial slurries. Resist high‑temperature oxidation, no rust or surface degradation in humid and corrosive conditions.
■ Precision Machined Mounting Holes & Profiles
Tight‑tolerance processing for embedded cavities, mounting holes, notches and locating surfaces. Ensure perfect matching with pins, shafts and insert parts, good assembly repeatability.
■ Non‑magnetic & Electrical Insulation
Non‑magnetic feature and reliable insulation performance, suitable for semiconductor, electronics and magnetic‑field‑sensitive production lines.
Main Applications:
High-temperature furnace protection tubes, thermocouple insulating sleeves, metallurgical molten metal conveying and shielding tubes, semiconductor thermal processing equipment, new energy high-temperature modules, chemical anti-corrosion piping and industrial high-temperature insulating structural parts.
Silicon Nitride Material Sheet
| Properties | Units | Silicone Nitride | |
| Mechanical | Density | gm/cc | 3.2 |
| Porosity | % | 0 | |
| Flexural Strength | Mpa | 830 | |
| Compressive Strength | Mpa | 2500 | |
| Elastic Modulus | Gpa | 310 | |
| Poisson's Ratio | / | 0.27 | |
| Hardness | kg/mm2 | 1580 | |
| Fracture Toughness KIC | Mpa *m 1/2 | 6.1 | |
| Thermal | Heat Conductivity | W/ m*k | 30 |
| Coefficient of Thermal Expansion | 10⁻⁶/K | 3.3 | |
| Specific Heat | j/kg*K | / | |
| Thermal Shock Resistance | °C | / | |
| Max UseTemperature | °C | 1400 | |
| Electrical | Dielectric Strength | ac-kv/mm | / |
| Dielectric Constant | / | 8 | |
| Loss Tangent | / | / | |
| Volume Resistivity | ohm•cm | >1014 | |
Features:
● High Hardness
Silicon nitride exhibits extremely high hardness, making it suitable for fields such as wear-resistant and cutting tools.
● Excellent Wear Resistance
Silicon nitride ceramic exhibits outstanding wear resistance, making it suitable for applications in high-wear environments.
● Superior Insulating Performance
Silicon nitride ceramic possesses excellent electrical insulation properties and chemical stability, making it widely used in the electronics and semiconductor industries.
● High Temperature Stability
It can maintain stability in high-temperature environments, making it suitable for applications like high-temperature heaters and furnaces.
Applications:
Rotating ball bearings and rollers bearings
Cutting tools
Engine components: valves, rocker arm pads, seal faces
Induction heating coil supports
Turbine blades, vanes, buckets
Welding and brazing jigs
Heating element components
Crucibles
Metal tube forming rolls and dies
TIG / Plasma welding nozzles
Weld positioners
Precision shafts and axles in high-wear environments
Thermocouple sheaths and tubes
Semiconductor process equipment
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