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AlW2C

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1079892 · Space group: P6_3/mmc (#194)

Basic Information

Formula
AlW2C
MP-ID
mp-1079892
Elements
3
Sites
8
Density
12.5543
g/cm³
Volume
107.58
ų
Cell a
3.0073
Å
Cell b
3.0073
Å
Cell c
13.7355
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3/mmc
Point Group
6/mmm
Crystal System
Hexagonal
Bravais Lattice
Hexagonal P
Stability
No
Packing Fraction
0.7400

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
12.89 6.8678 64.7 (0,0,0,2)
25.95 3.4339 25.2 (0,0,0,4)
34.44 2.6044 11.2 (1,-1,0,0)
34.44 2.6044 22.4 (1,0,-1,0)
35.07 2.5588 13.2 (1,-1,0,1)
35.07 2.5588 26.5 (1,0,-1,1)
36.91 2.4352 1.5 (1,-1,0,2)
36.91 2.4352 3.1 (1,0,-1,2)
39.36 2.2893 31.1 (0,0,0,6)
39.82 2.2638 50.0 (1,-1,0,3)
39.82 2.2638 100.0 (1,0,-1,3)
43.62 2.0751 4.4 (1,-1,0,4)
43.62 2.0751 8.7 (1,0,-1,4)
48.14 1.8900 1.4 (1,-1,0,5)
48.14 1.8900 2.8 (1,0,-1,5)
53.28 1.7194 7.5 (1,-1,0,6)
53.28 1.7194 15.1 (1,0,-1,6)
58.93 1.5672 18.5 (1,0,-1,7)
61.69 1.5037 19.7 (2,-1,-1,0)
61.69 1.5037 9.9 (1,1,-2,0)
63.32 1.4689 4.3 (2,-1,-1,2)
63.32 1.4689 2.1 (1,1,-2,2)
68.07 1.3774 7.3 (2,-1,-1,4)
68.07 1.3774 3.7 (1,1,-2,4)
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Energy Properties

Formation Energy/atom
0.00361
eV/atom
Energy/atom
-29.85012
eV/atom
Energy above Hull
0.1371
eV/atom
Uncorrected Energy
-9.6946
eV/atom
Volume/atom
13.45
ų
c/a Ratio
4.5674

Electronic Properties

Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0065
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000060
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
W · 0.500
Element Family
5d-TM
Solute Fraction
0.500
Interstitial Fraction
0.250

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0397
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.6442
J/mol·K
Ω Parameter
0.6562
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
22.066%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.3606
smaller = more stable mixing
VEC
4.750
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-40.000
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9464
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
B
Score
0.582
Family
Interstitial Alloy
Matrix Element
W · 0.500

Related Tasks

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1079892
Reference Citation

The crystal structure and related material properties of AlW2C were obtained from the Materials Project database (MP-ID: mp-1079892, database version v2026.04.13).

Literature Citation

Horton, M.K., Huck, P., Yang, R.X. et al. Accelerated data-driven materials science with the Materials Project. Nat. Mater. 24, 1522–1532 (2025). https://doi.org/10.1038/s41563-025-02272-0

BibTeX
@article{Horton2025,
  author  = {Horton, Matthew K. and Huck, Patrick and Yang, Ruo Xi and Munro, Jason M. and Dwaraknath, Shyam and Ganose, Alex M. and Kingsbury, Ryan S. and Wen, Mingjian and Shen, Jimmy X. and Mathis, Tyler S. and Kaplan, Aaron D. and Berket, Karlo and Riebesell, Janosh and George, Janine and Rosen, Andrew S. and Spotte-Smith, Evan W. C. and McDermott, Matthew J. and Cohen, Orion A. and Dunn, Alex and Kuner, Matthew C. and Rignanese, Gian-Marco and Petretto, Guido and Waroquiers, David and Griffin, Sinead M. and Neaton, Jeffrey B. and Chrzan, Daryl C. and Asta, Mark and Hautier, Geoffroy and Cholia, Shreyas and Ceder, Gerbrand and Ong, Shyue Ping and Jain, Anubhav and Persson, Kristin A.},
  title   = {Accelerated data-driven materials science with the Materials Project},
  journal = {Nature Materials},
  year    = {2025},
  volume  = {24},
  number  = {10},
  pages   = {1522--1532},
  month   = {oct},
  doi     = {10.1038/s41563-025-02272-0},
  issn    = {1476-4660},
  url     = {https://doi.org/10.1038/s41563-025-02272-0},
  abstract = {The Materials Project was launched formally in 2011 to drive materials discovery forwards through high-throughput computation and open data. More than a decade later, the Materials Project has become an indispensable tool used by more than 600,000 materials researchers around the world. This Perspective describes how the Materials Project, as a data platform and a software ecosystem, has helped to shape research in data-driven materials science. We cover how sustainable software and computational methods have accelerated materials design while becoming more open source and collaborative in nature. Next, we present cases where the Materials Project was used to understand and discover functional materials. We then describe our efforts to meet the needs of an expanding user base, through technical infrastructure updates ranging from data architecture and cloud resources to interactive web applications. Finally, we discuss opportunities to better aid the research community, with the vision that more accessible and easy-to-understand materials data will result in democratized materials knowledge and an increasingly collaborative community.}
}

3D Crystal Structure Rendering

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data
# generated using pymatgen
data_AlW2C
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.00730876
_cell_length_b   3.00730876
_cell_length_c   13.73553500
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   120.00001667
_symmetry_Int_Tables_number   1
_chemical_formula_structural   AlW2C
_chemical_formula_sum   'Al2 W4 C2'
_cell_volume   107.58015773
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Al  Al0  1  0.33333300  0.66666700  0.75000000  1.0
  Al  Al1  1  0.66666700  0.33333300  0.25000000  1.0
  W  W2  1  0.33333300  0.66666700  0.40988700  1.0
  W  W3  1  0.66666700  0.33333300  0.59011300  1.0
  W  W4  1  0.66666700  0.33333300  0.90988700  1.0
  W  W5  1  0.33333300  0.66666700  0.09011300  1.0
  C  C6  1  0.00000000  0.00000000  0.50000000  1.0
  C  C7  1  0.00000000  0.00000000  0.00000000  1.0
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