Co4 Ta2

semiconductor

· Co4 Ta2

Co₄Ta₂ is an intermetallic compound combining cobalt and tantalum, belonging to the family of transition metal intermetallics with semiconductor characteristics. This material is primarily of research and developmental interest, with potential applications in high-temperature structural systems and electronic devices where the combination of refractory tantalum and magnetic cobalt offers unusual thermal stability and electronic properties compared to conventional alloys.

High-temperature structural intermetallicsAerospace research applicationsElectronic device semiconductorsExperimental superalloy developmentWear-resistant coatings research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	253.9	GPa	—
Shear Modulus(G)	121.6	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00820	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2360	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.

Co4 Ta2

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control