Boron Carbide (B₄C) Ceramics

Boron carbide ceramic, also known as black diamond, is widely used in military applications. Its lightweight nature makes it lighter than alumina and silicon carbide, while its excellent neutron absorption capability and high neutron cross-section make it a critical material for nuclear applications.

Boron Carbide Advantages

Ultra-High Hardness
Low Density
Excellent Wear Resistance
High Chemical Stability
Thermal Stability
Neutron Absorption Ability

Boron Carbide Application

Semiconductor Industry: Wafer handling components, heater bases, insulators
Aerospace & Defense: Bearings, turbine components, structural parts
Automotive: Engine components, turbocharger rotors, glow plugs
Industrial Equipment: Cutting tools, pump seals, precision bearings
Medical Devices: Surgical tools and high-temperature components

Material Properties

Mechanical Properties	Unit	Boron Carbide (B₄C)
Density	g/cm³	2.5
Hardness	kg/mm²	3200
Flexural Strength	MPa	410
Compressive Strength	MPa	2500
Elastic Modulus	GPa	470
Fracture Toughness	MPa·m¹ᐟ²	2.5
Poisson’s Ratio	–	0.16
Young’s Modulus	GPa	460

Thermal Properties	Unit	Boron Carbide (B₄C)
Thermal Conductivity	W/m·K	42
Melting Point	°C	2450
Specific Heat	J/g·K	0.9
Coefficient of Thermal Expansion	×10⁻⁶/K	4

Electrical Properties	Unit	Boron Carbide (B₄C)
Dielectric Constant	1 MHz	7
Dielectric Strength	V/cm	1 × 10⁶
Dielectric Loss	1 MHz	0.001
Volume Resistivity	Ω·cm	10⁴

Boron Carbide Ceramics Machining

We specialize in precision machining of boron nitride (BN) components, delivering exceptional dimensional accuracy and ultra-smooth surface finishes. With our advanced multi-axis CNC equipment and years of expertise in technical ceramics, we produce parts that offer outstanding thermal stability, high electrical insulation, and excellent machinability — even under extreme conditions.

Whether for semiconductor, vacuum, aerospace, or high-temperature industrial applications, our BN components ensure reliable performance and long service life.