Al3Tc2
Al3Tc2 is a metallic intermetallic compound formed from aluminum and technetium that exists as a metastable phase.
About Al3Tc2
Al3Tc2 is an intermetallic compound composed of aluminum and the radioactive transition metal technetium. As a metallic phase, it exhibits the characteristic electron delocalization typical of transition metal aluminides, though its structural configuration suggests it exists in a metastable state rather than being the most thermodynamically favored arrangement of these elements.
Despite its instability relative to the ground state, the compound is a subject of interest in structural databases. Its presence across multiple computational datasets highlights the complexity of aluminum-technetium phase space and the ongoing efforts to map the atomic arrangements of rare transition metal alloys.
Key Properties
Cross-validated computational properties for Al3Tc2, aggregated across 5 databases.
Band GapEnergy needed to move an electron from the valence band to the conduction band. Lower or zero values tend to behave more metallic; larger gaps are more insulating or semiconducting.
Energy Above HullThermodynamic distance from the most stable set of competing phases. 0 eV/atom is on the convex hull; small positive values may still be experimentally accessible.
StabilityA plain-language summary of the best reported energy-above-hull result. It reflects whether the lowest-energy structure is on, near, or far from the stability hull.
StructuresCount of reported calculated crystal structures for this formula, including alternate polymorphs, source databases, and observed space groups.
Frequently Asked Questions
Common questions about Al3Tc2, answered from cross-validated data.
What is Al3Tc2?
Al3Tc2 is a metallic intermetallic compound formed from aluminum and technetium that exists as a metastable phase.
What is the band gap of Al3Tc2?
Is Al3Tc2 a metal, semiconductor, or insulator?
Is Al3Tc2 thermodynamically stable?
How many polymorphs of Al3Tc2 are known?
What elements does Al3Tc2 contain?
Where does the data for Al3Tc2 come from?
How It Compares
As a unique intermetallic phase, Al3Tc2 represents a specific point in the aluminum-technetium binary system. While it lacks direct structural siblings in this context, it serves as a critical data point for understanding how technetium integrates into aluminum-rich lattices, contrasting with more stable, naturally occurring intermetallic compounds.
Data sources & attribution
- latticegraph — Lattice Graph Materials Intelligence Platform
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