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U2Cr2C3

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3335187 · Space group: C2/m (#12)

Basic Information

Formula
U2Cr2C3
MP-ID
mp-3335187
Elements
3
Sites
7
Density
12.1926
g/cm³
Volume
83.91
ų
Cell a
6.0451
Å
Cell b
6.0451
Å
Cell c
5.2706
Å
α Angle
64.10
°
β Angle
64.10
°
γ Angle
29.22
°
Space Group
C2/m
Point Group
2/m
Crystal System
Monoclinic
Bravais Lattice
Monoclinic C
Stability
Yes
Packing Fraction
0.5240

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
16.99 5.2195 27.9 (1,1,0)
18.85 4.7070 100.0 (1,1,1)
30.54 2.9276 93.0 (1,0,0)
30.78 2.9053 80.8 (2,2,1)
30.81 2.9025 67.6 (1,1,-1)
33.96 2.6399 20.9 (1,0,1)
33.96 2.6399 20.9 (0,1,1)
34.02 2.6353 33.2 (1,1,2)
34.36 2.6097 38.0 (2,2,0)
38.20 2.3562 76.9 (2,1,1)
38.20 2.3562 76.9 (1,2,1)
38.21 2.3552 35.9 (1,0,-1)
38.21 2.3552 35.9 (0,1,-1)
38.24 2.3535 23.4 (2,2,2)
38.28 2.3515 68.7 (0,0,2)
46.35 1.9590 2.0 (2,1,2)
46.35 1.9590 2.0 (1,2,2)
46.36 1.9584 35.3 (1,0,2)
46.82 1.9403 25.4 (2,2,-1)
49.10 1.8554 21.6 (2,1,-1)
49.10 1.8554 21.6 (1,2,-1)
49.10 1.8553 24.6 (3,3,2)
52.60 1.7398 12.7 (3,3,0)
52.83 1.7328 16.4 (2,2,3)
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Energy Properties

Formation Energy/atom
-0.25731
eV/atom
Energy/atom
-31.66766
eV/atom
Energy above Hull
0.0000
eV/atom
Uncorrected Energy
-31.6677
eV/atom
Volume/atom
11.99
ų
c/a Ratio
-

Electronic Properties

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

Magnetic Properties

Magnetic
No
Total Mag. Moment
0.0103
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000120
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
C · 0.429
Element Family
Metalloid-Nonmetal
Solute Fraction
0.571
Interstitial Fraction
0.429

High-Entropy Alloy Features

Composite Radar (normalized)
Element-Class Share
Mix Entropy ΔS/R
1.0790
HEA criterion (>1.0 = high entropy)
Mix Entropy ΔS
8.9707
J/mol·K
Ω Parameter
0.7995
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
34.226%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.5206
smaller = more stable mixing
VEC
4.800
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-29.878
kJ/mol; negative = exothermic mixing
Entropy Norm
0.9821
SS Former
0
Phase Tendency
AM

Traditional Material Features

ROM Blended-Feature Radar
Rating & Classification
Tier
C
Score
0.430
Family
C-rich Multi-Component
Matrix Element
C · 0.429

Related Tasks

Related computation task IDs (1)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-3335187
Reference Citation

The crystal structure and related material properties of U2Cr2C3 were obtained from the Materials Project database (MP-ID: mp-3335187, 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_U2Cr2C3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.04509994
_cell_length_b   6.04509913
_cell_length_c   5.27062972
_cell_angle_alpha   64.09553913
_cell_angle_beta   64.09554038
_cell_angle_gamma   29.22387263
_symmetry_Int_Tables_number   1
_chemical_formula_structural   U2Cr2C3
_chemical_formula_sum   'U2 Cr2 C3'
_cell_volume   83.90564539
_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
  U  U0  1  0.59111007  0.59111007  0.22942263  1.0
  U  U1  1  0.40888993  0.40888993  0.77057737  1.0
  Cr  Cr2  1  0.83699385  0.83699385  0.32548044  1.0
  Cr  Cr3  1  0.16300615  0.16300615  0.67451956  1.0
  C  C4  1  0.74979755  0.74979755  0.75018401  1.0
  C  C5  1  0.25020245  0.25020245  0.24981599  1.0
  C  C6  1  0.00000000  0.00000000  0.00000000  1.0
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