Home > Silicon Nitride Ceramics >

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

Product Categories

Norceramic New Materials (Beijing) Co., Ltd

Trust Seal

Verified Supplier

Credit Check

Supplier Assessment

Contact Now

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

Surface Roughness : Ra0.3

Usage : Melting, calcining, and chemical reactions

Supply Ability : 200 Pieces per Month

Weight : Depends on size and material density

Certification : ISO9001

Thermal shockresistance : High

Temperatureresistance : Up to 1400°C or higher

Price : $1.5~$5000 Per Piece

Packaging Details : Wooden Cages or Heavy Carton

Finish : Smooth Surface

Shape : Customized

Tolerance : ±0.02mm

Color : Typically Black or Grey

Payment Terms : T/T

Chemical resistance : Resistant to acids, alkalis, and molten metals

Size : Various sizes available

Delivery Time : 10-15 Work Days

Material : Silicone Nitride

Place of Origin : Handan

Type : Custom Ceramic Block

Brand Name : TM

Durability : High durability under high temperature conditions

MOQ : 1 Piece

Contact Now

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.

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

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 Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

■ 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.

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

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

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

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.

High Toughness Silicon Nitride Ceramic Block Si₃N₄ Solid Structural Ceramic Bar

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

Product Tags: