AlInB
High-Entropy Materials HEA Traditional Materials TRA Elasticity Data ELAMP-ID: mp-631543 · Space group: F-43m (#216)
Basic Information
Formula
AlInB
MP-ID
mp-631543
Elements
3
Sites
3
Density
4.6310
g/cm³
Volume
54.72
ų
Cell a
4.2615
Å
Cell b
4.2615
Å
Cell c
4.2615
Å
α Angle
60.00
°
β Angle
60.00
°
γ Angle
60.00
°
Space Group
F-43m
Point Group
-43m
Crystal System
Cubic
Bravais Lattice
cF
Stability
No
Packing Fraction
0.7405
X-ray Diffraction
Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å
Diffraction Peaks (Top 10)
| 2θ | d (Å) | I | hkl |
|---|---|---|---|
| 25.60 | 3.4795 | 100.0 | (1,1,1) |
| 29.65 | 3.0133 | 40.3 | (1,1,0) |
| 42.42 | 2.1307 | 71.0 | (2,1,1) |
| 50.21 | 1.8171 | 48.0 | (2,2,1) |
| 52.61 | 1.7397 | 10.1 | (2,2,2) |
| 61.55 | 1.5067 | 11.3 | (2,2,0) |
| 67.78 | 1.3826 | 19.0 | (3,2,2) |
| 69.79 | 1.3476 | 12.5 | (3,2,1) |
| 77.61 | 1.2302 | 22.8 | (3,3,2) |
| 83.32 | 1.1598 | 14.4 | (3,3,1) |
Energy Properties
Formation Energy/atom
1.04758
eV/atom
Energy/atom
-11.17143
eV/atom
Energy above Hull
1.0812
eV/atom
Uncorrected Energy
-3.3376
eV/atom
Volume/atom
18.24
ų
c/a Ratio
1.0000
Electronic Properties
Metallic
Metal
Band Gap
0
eV
Direct Gap
No
CBM
N/A
eV
Magnetic Properties
Magnetic
No
Total Mag. Moment
0.0037
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000070
μB/ų
Elastic Properties
KVRH
56.712
GPa
GVRH
-27.655
GPa
Young's Modulus E
-
GPa
Poisson Ratio ν
0.791
Pugh Ratio K/G
-2.051
Vickers Hardness Est.
-
GPa
Ductility
Ductile
Anisotropy
3.213
Lame λ
75.149
GPa
Feature Analysis
Composition Overview
Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Al · 0.333
Element Family
PostTransition-Noble
Solute Fraction
0.667
Interstitial Fraction
0.333
High-Entropy Alloy Features
Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0986
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
9.1339
J/mol·K
Ω Parameter
4.2990
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
24.127%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.1768
smaller = more stable mixing
VEC
3.000
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-2.629
kJ/mol; negative = exothermic mixing
Entropy Norm
1.0000
SS Former
0
Phase Tendency
IM
Traditional Material Features
ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.395
Family
Al-rich Multi-Component
Matrix Element
Al · 0.333
Elasticity Features
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
3.2130
Homogeneous Poisson ν
0.7910
Homogeneity
0.7910
Related Tasks
Citation & References
Materials Project Page
https://materialsproject.org/materials/mp-631543
Reference Citation
The crystal structure and related material properties of AlInB were obtained from the Materials Project database (MP-ID: mp-631543, 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
3D Crystal Structure Rendering
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Raw CIF Data
# generated using pymatgen
data_AlInB
_symmetry_space_group_name_H-M 'P 1'
_cell_length_a 4.26145963
_cell_length_b 4.26145963
_cell_length_c 4.26145963
_cell_angle_alpha 60.00000000
_cell_angle_beta 60.00000000
_cell_angle_gamma 60.00000000
_symmetry_Int_Tables_number 1
_chemical_formula_structural AlInB
_chemical_formula_sum 'Al1 In1 B1'
_cell_volume 54.72177009
_cell_formula_units_Z 1
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 0.75000000 0.75000000 0.75000000 1.0
In In1 1 0.50000000 0.50000000 0.50000000 1.0
B B2 1 0.00000000 0.00000000 0.00000000 1.0
