Nb5Si3 is an intermetallic compound combining niobium and silicon, belonging to the family of refractory metal silicides. It is primarily of research and developmental interest for ultra-high-temperature structural applications where traditional superalloys reach their limits, particularly in aerospace propulsion systems and advanced thermal environments. Engineers evaluate Nb5Si3-based materials for their potential to enable higher operating temperatures in jet engines and hypersonic vehicles compared to conventional nickel-superalloys, though challenges with room-temperature brittleness and oxidation resistance continue to drive material refinement efforts.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 185.4 | GPa | — | ||
| ↳ | 185.4 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 1.654 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν) | 0.3443 | - | — | ||
Shear Modulus(G)2 entries | 64.40 | GPa | — | ||
| ↳ | 64.40 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.951 | kg/m³ | — |
| 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)2 entries | -0.6695 | eV/atom | — | ||
| ↳ | -0.5960 | eV/atom | — |