CoB2W2
metal· JVASP-14890· CoB2W2
CoB₂W₂ is a cobalt-tungsten boride composite—a hard, refractory intermetallic compound combining cobalt and tungsten boride phases. This material belongs to the family of transition metal borides, which are engineered for extreme hardness and thermal stability at elevated temperatures. The dual-phase microstructure leverages cobalt's toughness with tungsten boride's exceptional hardness, making it a candidate for wear-resistant and high-temperature applications where conventional cemented carbides or tool steels fall short. While not yet mainstream in production, such boride composites are active research subjects in cutting tool development, abrasive applications, and thermal barrier systems.
cutting tool insertswear-resistant coatingshigh-temperature structural componentsabrasive applicationsrefractory bonding phasesresearch materials—advanced manufacturing
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | — | ksi | — | — | |
Poisson's Ratio(ν) | — | - | — | — | |
Shear Modulus(G) | — | ksi | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — | |
Seebeck Coefficient(S) | — | µV/K | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.