| Property | Value / Description | Significance | |----------|---------------------|--------------| | | A ternary alloy of titanium (Ti), niobium (Nb), and a small fraction of rare‑earth element yttrium (Y). The stoichiometry is roughly Ti 0.65 Nb 0.30 Y 0.05 . | Balances high strength (Ti, Nb) with thermal stability (Y). | | Microstructure | Hierarchical nanolaminate layers (≈10–30 nm) interspersed with amorphous interphases. | Imparts exceptional toughness while maintaining low density. | | Mechanical Strength | Ultimate tensile strength up to 2.1 GPa at room temperature; retains >80 % of this strength at 800 °C. | Enables operation in high‑temperature environments. | | Density | 4.3 g cm⁻³ (≈30 % lighter than conventional Ti‑6Al‑4V). | Reduces overall mass of structural components. | | Electrical Conductivity | Moderate (~5 × 10⁵ S m⁻¹), anisotropic. | Suitable for integrated structural‑electrical functions. | | Corrosion Resistance | Excellent in saline and acidic media due to passive Y‑oxide surface layers. | Extends service life in marine and aerospace settings. |
The Meyd-173 was a response to the growing need for a multi-role aircraft in the early 20th century. The Meyd family, a renowned British aircraft manufacturer, began working on the design in the late 1920s. The Meyd-173 was part of a series of aircraft developed by the company, which included the Meyd-125 and the Meyd-212. meyd-173
These attributes stem from the deliberate engineering of interfaces at the nanometer scale. By controlling the thickness of each laminar phase, researchers have tuned dislocation motion and crack propagation pathways, achieving a rare combination of strength, ductility, and thermal endurance. | Property | Value / Description | Significance
The Meyd-173 left an indelible mark on the history of military aviation. Its design and development paved the way for future aircraft, inspiring generations of pilots and engineers. Some notable legacies of the Meyd-173 include: | Enables operation in high‑temperature environments