TiNi is an equiatomic titanium-nickel intermetallic compound and the primary constituent phase in nitinol shape-memory alloys (SMAs). This material is renowned for its exceptional ability to recover from large deformations through thermal or stress-induced phase transformations, making it fundamentally different from conventional metals that yield plastically under load. Engineers select TiNi-based alloys for applications demanding reversible shape recovery, superelasticity (rubber-like behavior without permanent set), or precise actuation control—properties unattainable in standard engineering metals or polymers.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 152.6 | GPa | — | ||
| ↳ | 162.3 | GPa | — | ||
Poisson's Ratio(ν) | 0.4400 | - | — | ||
Shear Modulus(G)2 entries | 38.17 | GPa | — | ||
| ↳ | 28.56 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 6.542 | kg/m³ | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | 6.900 | µV/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.05450 | eV/atom | — | ||
Formation Energy(ΔHf)3 entries | -0.3749 | eV/atom | — | ||
| ↳ | -0.3431 | eV/atom | — | ||
| ↳ | -0.3786 | eV/atom | — |