BZN Carbon specializes in manufacturing high-quality carbon carbon composite blocks (C/C blocks) tailored to meet the demanding requirements of thermal and structural applications. These components are engineered using advanced 2D, 2.5D, 3D, and 4D carbon fiber architectures, ensuring optimal thermal stability, mechanical strength, and service life across extreme environments.

Product Overview

Carbon carbon composite blocks are fabricated from carbon fiber reinforced carbon matrix materials. They offer a unique combination of light weight, excellent thermal shock resistance, low thermal expansion, and outstanding performance at elevated temperatures. Compared to conventional graphite blocks, C/C blocks provide superior mechanical integrity and oxidation resistance in inert atmospheres.

Available Densities:

2D: 1.4–1.6 g/cm³
2.5D: 1.5–1.8 g/cm³
3D: 1.6–1.93 g/cm³
4D: 1.7–1.95 g/cm³
(Customized grades available upon request)

Shapes & Sizes:
Custom block sizes, shapes, and tolerances are available based on customer drawings or sample parts. We also offer precision machining and X-ray testing for structural integrity validation.

Applications

C/C composite blocks from BZN Carbon are widely used in:

High-temperature furnace linings and support structures
Monocrystalline and polycrystalline silicon production systems
Aerospace thermal shielding and ablative components
Semiconductor and solar-grade silicon purification equipment
Vacuum furnaces and hot pressing tooling
Nuclear and military-grade heat-resistant structures

Key Advantages

High Thermal Stability: Maintains structural performance up to 2500°C in inert or vacuum environments.
Outstanding Mechanical Properties: High strength-to-weight ratio and excellent resistance to wear, fatigue, and mechanical impact.
Thermal Shock Resistance: Ideal for rapid heating/cooling cycles in processing systems.
Lightweight & Corrosion Resistant: Significantly lighter than traditional refractory materials, with excellent resistance to chemical erosion.
Custom Design Flexibility: Complex 3D or 4D architecture options allow optimized performance for specific applications.

Typical Properties (2.5D Example)

Item	Unit	2.5D Value
Bulk Density	g/cm³	1.5 – 1.8
Carbon Content	%	≥99.9
Tensile Strength	MPa	40 – 60
Flexural Strength	MPa	80 – 110
Compressive Strength	MPa	90 – 130
Thermal Conductivity	W/m·K	30 – 50
Linear Expansion Coefficient	10⁻⁶/K	0.5 – 1.3
Processing Temperature	°C	>2000
Ash Content	ppm	≤100