Be2W
Be2W is a thermodynamically stable metallic intermetallic compound formed from beryllium and tungsten.
About Be2W
Be2W is a metallic intermetallic compound composed of beryllium and tungsten. As a thermodynamically stable phase located on the convex hull, it represents a robust structural configuration within its chemical system.
Its metallic nature and structural integrity make it a subject of significant interest in materials research. With extensive data available across multiple databases, it serves as a well-characterized example of how light elements like beryllium interact with heavy transition metals.
Key Properties
Cross-validated computational properties for Be2W, aggregated across 4 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.
Reported Structures
Lowest-energy structures reported for Be2W, ranked by energy above hull.
| Space GroupSymmetry classification of the crystal arrangement. The number is the international space-group index. | Crystal SystemBroad lattice family, such as cubic, tetragonal, monoclinic, or triclinic, derived from unit-cell symmetry. | Band Gap (eV)Electronic gap calculated for this specific reported structure, measured in electronvolts. | E above hull (eV/atom)Thermodynamic distance from the convex hull for this structure, normalized per atom. Lower is generally more stable. | E/atom (eV)Computed total energy normalized per atom. Use energy above hull, not this value alone, when comparing stability. | Density (g/cm³)Mass per relaxed crystal volume, reported in grams per cubic centimeter. |
|---|---|---|---|---|---|
| P63/mmc (No. 194) | hexagonal | 0.00 | 0.0000 | -7.116 | 10.73 |
| C2/m (No. 12) | Monoclinic | — | — | — | 6.23 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.72 |
| C2/m (No. 12) | Monoclinic | — | — | — | 10.39 |
| P-1 (No. 2) | Triclinic | — | — | — | 9.78 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.46 |
| P1 (No. 1) | Triclinic | — | — | — | 8.92 |
| P-3m1 (No. 164) | Trigonal | — | — | — | 5.36 |
| P63/mmc (No. 194) | Hexagonal | — | — | — | 5.66 |
| Cm (No. 8) | Monoclinic | — | — | — | 6.87 |
| Pmmn (No. 59) | Orthorhombic | — | — | — | 8.85 |
| C2/m (No. 12) | Monoclinic | — | — | — | 9.14 |
Applications
Where Be2W is used.
Frequently Asked Questions
Common questions about Be2W, answered from cross-validated data.
What is Be2W?
Be2W is a thermodynamically stable metallic intermetallic compound formed from beryllium and tungsten.
What is Be2W used for?
What is the band gap of Be2W?
Is Be2W a metal, semiconductor, or insulator?
Is Be2W thermodynamically stable?
What is the crystal structure of Be2W?
What is the density of Be2W?
How many polymorphs of Be2W are known?
What elements does Be2W contain?
Where does the data for Be2W come from?
How It Compares
As a standalone entry in this context, Be2W represents a stable metallic beryllide that demonstrates the viability of forming complex intermetallic phases between beryllium and refractory metals.
Data sources & attribution
- materials_project — Data from the Materials Project. Cite: Jain et al., APL Materials 1, 011002 (2013).
- mpaloe — Data from mpaloe.
- jarvis — Data from JARVIS (NIST). Cite: Choudhary et al., npj Comp. Mater. 6, 173 (2020).
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