TaC Coating

Tantalum carbide coating is a high-performance ceramic coating renowned for its exceptional hardness, wear resistance, and corrosion resistance. Its hardness approaches that of diamond, effectively resisting wear, scratching, and chemical attack, making it an ideal choice for extreme environment applications.

Characteristic

Uniform coating thickness.

Purity of 99.999%, dense coating surface, and high temperature resistance.

Resistant to acid and alkali corrosion, as well as hydrogen (H₂), ammonia (NH₃), silane (SiH₄), and silicon (Si), providing reliable protection in harsh chemical environments.

Withstands plasma etching chemicals (e.g., chlorine, bromine), dopants (e.g., boron, phosphorus, arsenic), and corrosive cleaning agents.

Excellent thermal shock resistance and strong coating adhesion.

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

Key components for SiC single crystal growth by PVT method, GaN wafer susceptor, guide ring, key thermal field components for MOCVD epitaxial wafer, silicon single crystal susceptor.

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