H4C is a ceramic compound with a hydrogen-carbon composition, likely representing a hydrocarbon-derived or carbon-hydride ceramic material. This class of materials is primarily of research interest for lightweight structural and thermal applications, as the low density combined with ceramic hardness makes it potentially valuable in aerospace and advanced composites development. While not yet widespread in industrial production, hydrogen-carbon ceramics are being explored as precursors to high-performance carbon-ceramic composites and as intermediates in ceramic matrix composite (CMC) manufacturing.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 4.430 | GPa | — | ||
Poisson's Ratio(ν) | 0.3800 | - | — | ||
Shear Modulus(G) | 3.020 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 572 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 7.891 | eV | — | ||
Dielectric Constant (Relative Permittivity)(εr) | 1.916 | - | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Piezoelectric Modulus(eij) | 0.07783 | C/m² | — | ||
Seebeck Coefficient(S) | -157.1 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.2110 | eV/atom | — |