B4 W4

semiconductor

· B4 W4

B4W4 is a boron-tungsten ceramic compound belonging to the refractory ceramics family, combining boron and tungsten to create a material with high hardness and thermal stability. This material is primarily investigated in research and advanced manufacturing contexts for applications requiring extreme hardness and wear resistance at elevated temperatures, positioning it as a potential alternative to traditional carbides and nitrides in specialized cutting tool and abrasive applications.

refractory ceramicshigh-temperature wear protectionadvanced cutting toolsresearch phase materialsceramic composites developmentextreme hardness applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Bulk Modulus(K)	49,179.1	ksi	—
Shear Modulus(G)	28,242.8	ksi	—

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

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)	-0.3030	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 W4

Mechanical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control