MgAl₂Si₂ is an intermetallic compound combining magnesium, aluminum, and silicon—a lightweight material positioned at the intersection of metal and ceramic properties. This phase appears primarily in research and developmental contexts as a potential strengthening constituent in magnesium-aluminum-silicon alloys, where it can improve stiffness and elevated-temperature performance compared to monolithic alternatives. Engineers would consider this material family for weight-critical aerospace and automotive applications where conventional alloys reach performance limits, though commercialization remains limited outside specialty high-temperature composites and experimental structural systems.
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K) | 64.26 | GPa | — | ||
Poisson's Ratio(ν) | 0.2900 | - | — | ||
Shear Modulus(G) | 31.75 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.285 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -37.16 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.01210 | eV/atom | — | ||
Formation Energy(ΔHf) | -0.05337 | eV/atom | — |