B4 Ta3

semiconductor

· B4 Ta3

B₄Ta₃ is an intermetallic compound combining boron and tantalum, belonging to the refractory ceramic-metal family of materials. This is a research-phase compound studied for high-temperature structural applications where exceptional hardness and thermal stability are critical; it represents an exploratory material in the boron-transition metal system rather than an established commercial product.

High-temperature structural applicationsRefractory coatingsExtreme environment researchWear-resistant surfacesAerospace component developmentMaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	293.8	GPa	—
Shear Modulus(G)	204.2	GPa	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.00250	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.7180	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.

B4 Ta3

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control