High-Density Carbon-Carbon Composite Materials

BZNCarbon supplies ultra-high density carbon-carbon composites with advanced thermal and structural properties. Suitable for aerospace, energy, and tooling applications requiring superior mechanical integrity.

BZNCarbon’s High-Density Carbon-Carbon Composites are engineered to perform in the most extreme thermal, chemical, and mechanical environments. Utilizing advanced processing techniques such as CVD (Chemical Vapor Deposition), CVI (Chemical Vapor Infiltration), and pitch-coke-based infiltration, we produce C/C composites with densities ranging from 1.80 to 1.95 g/cm³.

The resulting materials exhibit superior thermal conductivity, dimensional stability, and strength across all axes. These composites are suitable for demanding applications in aerospace, vacuum furnaces, energy systems, and defense industries.

Whether the design calls for 3D, 4D, Hoop, or custom multi-directional architectures, BZNCarbon can deliver tailored performance with minimal porosity and exceptional service life.

What Is High-Density Carbon-Carbon Composite?

High-density C/C composites are fabricated through high-temperature graphitization and densification of carbon fiber preforms. By selecting optimized infiltration methods (pitch, CVI, or CVD), we minimize open porosity while increasing interlaminar strength and directional conductivity.

These materials are ideal for high-load or high-frequency cycling applications, where conventional materials would fail due to thermal stress or fatigue.

Key Applications

Aerospace braking systems and thermal shields
Rocket nozzle linings and high-pressure insulators
Vacuum furnace platforms and structural fixtures
Industrial high-temperature tooling and molds
Nuclear-grade thermal control panels
Protective liners in gas reactors or foundries

Technical Specifications

Property	Unit	Direction	Standard	Tested Value
Bulk Density	g/cm³	—	≥1.80	1.85
Tensile Strength	MPa	XY / Z	≥60 / ≥30	169 / 95
Tensile Modulus	GPa	XY / Z	≥50 / ≥30	59.9 / 35.8
Bending Strength	MPa	XY / Z	≥80 / ≥40	140 / 80
Compressive Strength	MPa	XY / Z	≥85 / ≥85	120 / 282
Shear Strength	MPa	XY / Z	≥30 / ≥25	65 / 49
Thermal Conductivity (900°C)	W/m·K	XY / Z	≥40 / ≥20	62.2 / 25.1
Thermal Expansion (1000°C)	10⁻⁶/K	XY / Z	≤2.0 / ≥3.0	1.1 / 1.14
Graphitization Level	%	—	≥60	75.5
Specific Heat Capacity	kJ/kg·K	—	≥1.2	1.53