Barium carbide (BaC₂) is an ionic ceramic compound belonging to the carbide family, characterized by barium cations bonded to carbide anions. This material is primarily of research and specialized industrial interest rather than a commodity engineering ceramic; it appears in niche applications requiring its unique chemical reactivity and thermal properties, such as acetylene generation (historically), metallurgical processing, and as a precursor in advanced ceramics synthesis. Engineers select barium carbide for applications where its chemical reactivity with water or other reagents is advantageous, or where its structural properties suit high-temperature or specialized chemical environments, though it is less commonly specified than more established carbides like SiC or WC in mainstream structural applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 39.76 | GPa | — | ||
| ↳ | 46.54 | GPa | — | ||
Poisson's Ratio(ν) | 0.4400 | - | — | ||
Shear Modulus(G)2 entries | 10.75 | GPa | — | ||
| ↳ | 21.95 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 3.875 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 1.791 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 11.04 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.000 | C/m² | — | ||
Seebeck Coefficient(S) | -249.5 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.00630 | eV/atom | — | ||
Formation Energy(ΔHf)2 entries | -0.2560 | eV/atom | — | ||
| ↳ | -0.07748 | eV/atom | — |