Co4 B4

semiconductor

· Co4 B4

Co₄B₄ is a cobalt-boron intermetallic compound classified as a semiconductor, belonging to the family of transition metal borides that combine metallic and ceramic characteristics. This material is primarily of research interest rather than established industrial production, with potential applications in hard coating systems, thermoelectric devices, and high-temperature structural applications where cobalt's wear resistance and boron's hardening effects converge. Its notable advantage over conventional alternatives lies in the potential for tailored electronic properties through the boride structure, making it relevant for advanced material development in emerging technologies.

experimental hard coatingsthermoelectric researchwear-resistant compositeshigh-temperature materialssemiconductor device developmentboride-based ceramics

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	302.5	GPa	—
Shear Modulus(G)	142.1	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.04610	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3610	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 B4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control