AlNi3

AlNi3 is a stable metallic intermetallic compound formed from aluminum and nickel.

AlNi
Crystal structure of AlNi3
Ground-state structure · Materials Project
Overview

About AlNi3

AlNi3 is a metallic intermetallic compound composed of aluminum and nickel. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration that maintains its integrity under standard conditions. Its metallic nature is defined by the absence of a band gap, facilitating efficient electron transport characteristic of such intermetallic systems. This compound is of significant interest in materials science due to its structural stability and the well-documented nature of its atomic arrangements. With numerous reported structures across multiple databases, it serves as a foundational reference point for understanding the phase behavior and bonding characteristics of aluminum-nickel systems.

At a glance

Key Properties

Cross-validated computational properties for AlNi3, aggregated across 5 databases.

Band Gap

Metallic / not reported

Energy Above Hull

0.000 eV/atom
Best (lowest) across sources

Stability

On hull (stable)
4 DFT sources

Structures

24
5 databases, 4 space groups
Uses

Applications

Where AlNi3 is used.

High-temperature structural alloysCatalysis researchMaterials science phase studies
Reference

Frequently Asked Questions

Common questions about AlNi3, answered from cross-validated data.

What is AlNi3?

AlNi3 is a stable metallic intermetallic compound formed from aluminum and nickel.

More questions
What is AlNi3 used for?
AlNi3 is used in high-temperature structural alloys, catalysis research, and materials science phase studies.
What is the band gap of AlNi3?
AlNi3 is computed to be metallic (no band gap) in the reported DFT structures.
Is AlNi3 a metal, semiconductor, or insulator?
Computed band structures report no gap, so it is metallic.
Is AlNi3 thermodynamically stable?
Yes — AlNi3 sits on the convex hull (energy above hull 0 eV/atom), i.e. on hull (stable).
How many polymorphs of AlNi3 are known?
24 structures of AlNi3 are reported across 5 databases, spanning 4 distinct space groups.
What elements does AlNi3 contain?
AlNi3 contains Al and Ni (2 elements).
Where does the data for AlNi3 come from?
AlNi3 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a thermodynamically stable intermetallic, AlNi3 occupies a central role in the study of aluminum-nickel phases. It serves as a benchmark for stability within its binary system, providing critical insights into the formation and persistence of ordered intermetallic structures.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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