TaC Coating

TaC-coated graphite is manufactured by depositing a thin layer of fine tantalum carbide on the surface of high-purity graphite substrates via the Chemical Vapor Deposition (CVD) process. With its ultra-high melting point, excellent hardness, and outstanding chemical stability, it serves as an ideal choice for protecting critical components in extreme environments.

Characteristic

Excellent thermal shock resistance

Excellent physical impact resistance

Outstanding chemical resistance

Ultra-high purity

Can be processed into various complex shapes

Usable in oxidizing environments

Long service life

Parameter

Property Unit Value
Density g/cm³ 14.3
Melting Point °C 3880
Lattice Constant nm 0.4454
Hardness HK 2000
Thermal Conductivity W/(m·K) 22-25 (at 25℃)
W/(m·K) 15-18 (at 100℃)
Coefficient of Thermal Expansion K⁻¹ 6.29×10⁻⁶
Elastic Modulus GPa 291
Resistivity Ω·cm 1×10⁻⁵

Application field solutions

Single-crystal SiC Growth Components

MOCVD Components

High-Temperature Elements

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