LiAlSi is a lightweight intermetallic compound combining lithium, aluminum, and silicon, representing an emerging class of materials designed for applications requiring minimal density with reasonable stiffness. This material family is primarily under investigation for aerospace and automotive applications where weight reduction is critical, though it remains largely in the research and development phase rather than widespread industrial production. Engineers would consider LiAlSi where conventional aluminum alloys are too heavy or where advanced structural applications demand a step change in specific stiffness (strength or modulus per unit weight).
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 9,136.3 | ksi | DFT | ||
| ↳ | 8,953.2 | ksi | DFT · OptB88vdW | ||
| ↳ | 9,136.3 | ksi | DFT · PBE | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | DFT · PBE | ||
Elastic Anisotropy(AU) | 0.03662 | - | DFT · PBE | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | DFT · PBE | ||
Poisson's Ratio(ν)2 entries | 0.1600 | - | DFT · OptB88vdW | ||
| ↳ | 0.1597 | - | DFT · PBE | ||
Shear Modulus(G)3 entries | 8,042.1 | ksi | DFT | ||
| ↳ | 7,887.2 | ksi | DFT · OptB88vdW | ||
| ↳ | 8,042.1 | ksi | DFT · PBE |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.07048 | lb/in³ | DFT · OptB88vdW |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg)2 entries | 0.2310 | eV | DFT · OptB88vdW | ||
| ↳ | 0.4830 | eV | DFT · TBmBJ | ||
Dielectric Constant (Relative Permittivity)(εr)2 entries | 19.07 | - | DFT · OptB88vdW | ||
| ↳ | 19.23 | - | DFT · PBE | ||
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries | 16.20 | - | DFT · OptB88vdW | ||
| ↳ | 15.30 | - | DFT · TBmBJ | ||
Electronic Dielectric Tensor(ε∞) | Matrix (redacted) | - | DFT · PBE | ||
Total Dielectric Tensor(ε) | Matrix (redacted) | - | DFT · PBE | ||
Electron Effective Mass(m*e) | 0.01000 | me | DFT · OptB88vdW · 27°C | ||
Hole Effective Mass(m*h) | 0.01000 | me | DFT · OptB88vdW · 27°C | ||
Magnetic Moment(μB) | 0.000 | µB | DFT · OptB88vdW | ||
Piezoelectric Modulus(eij)2 entries | 0.3337 | C/m² | DFT · OptB88vdW | ||
| ↳ | 0.2830 | C/m² | DFT · PBE | ||
Piezoelectric Stress Tensor(eij) | Matrix (redacted) | C/m² | DFT · PBE | ||
Thermoelectric Power Factor(PF)2 entries | 0.00220 | W/(m·K²) | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 0.00416 | W/(m·K²) | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Seebeck Coefficient(S)2 entries | -158.7 | μV/K | DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C | ||
| ↳ | 211.4 | μV/K | DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C | ||
Spectroscopic Limited Maximum Efficiency (SLME)(SLME) | 14.37 | % | DFT · TBmBJ |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | DFT · OptB88vdW | ||
Formation Energy(ΔHf) | -0.2869 | eV/atom | DFT · OptB88vdW |
Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data