CrB4 is a chromium tetraboride ceramic compound belonging to the boride family of hard, refractory materials. It is primarily of research and specialized industrial interest for applications requiring extreme hardness and thermal stability, particularly in cutting tools, wear-resistant coatings, and high-temperature structural applications where conventional hardmetals would fail. CrB4 combines the hardness characteristic of boride ceramics with chromium's corrosion resistance, making it attractive for environments combining mechanical wear and chemical aggression, though its brittleness and manufacturing complexity limit broader adoption compared to established alternatives like tungsten carbide or cubic boron nitride.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 39,125.4 | ksi | — | ||
Poisson's Ratio(ν) | 0.1300 | - | — | ||
Shear Modulus(G) | 37,891.1 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1543 | lb/in³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2926 | eV/atom | — |