Ta4 C3

semiconductor

· Ta4 C3

Ta₄C₃ is a refractory ceramic compound belonging to the tantalum carbide family, characterized by a mixed-valence tantalum structure with a 4:3 metal-to-carbon ratio. This material is primarily of research and developmental interest rather than established commercial use, studied for ultra-high-temperature applications where extreme hardness and thermal stability are required. The tantalum carbide family is notable for exceptional hardness and melting points exceeding 3500°C, making it attractive for specialized aerospace, cutting tool, and extreme-environment applications where conventional cemented carbides or other ceramics are insufficient.

refractory coatingshigh-temperature ceramics researchcutting tool insertsaerospace thermal protectionultra-hard material development

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00110	eV	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.4940	eV/atom	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Ta4 C3

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control