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Ti2CoRu

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-1093541 · Space group: Immm (#71)

Basic Information

Formula
Ti2CoRu
MP-ID
mp-1093541
Elements
3
Sites
4
Density
0.7580
g/cm³
Volume
560.27
ų
Cell a
9.4781
Å
Cell b
9.4781
Å
Cell c
9.4781
Å
α Angle
128.54
°
β Angle
118.60
°
γ Angle
84.16
°
Space Group
Immm
Point Group
mmm
Crystal System
Orthorhombic
Bravais Lattice
Orthorhombic I
Stability
No
Packing Fraction
0.6800

X-ray Diffraction

Diffraction Pattern
X-axis: 2θ (°); Y-axis: relative intensity; CuKa ; λ=1.5406 Å
Diffraction Peaks (Top 24)
2θd (Å)Ihkl
11.10 7.9736 100.0 (1,0,0)
12.46 7.1035 1.5 (0,1,0)
12.58 7.0347 37.9 (1,1,-1)
14.13 6.2693 1.1 (0,0,1)
18.33 4.8389 16.0 (1,-1,1)
18.96 4.6804 1.2 (1,1,0)
21.05 4.2204 22.9 (2,1,-1)
22.30 3.9868 19.8 (2,0,0)
24.34 3.6566 2.2 (0,1,1)
25.07 3.5518 1.0 (0,2,0)
25.32 3.5174 7.2 (2,2,-2)
28.38 3.1444 10.6 (2,-1,1)
30.34 2.9462 1.3 (1,2,0)
31.24 2.8633 1.2 (1,1,1)
31.44 2.8451 8.1 (3,1,-1)
33.16 2.7020 7.0 (3,2,-2)
33.72 2.6579 6.7 (3,0,0)
37.16 2.4195 2.5 (2,-2,2)
38.39 2.3449 2.3 (3,3,-3)
39.38 2.2879 4.3 (3,-1,1)
42.64 2.1205 3.4 (4,1,-1)
42.86 2.1102 3.3 (4,2,-2)
44.01 2.0574 1.5 (2,-2,-2)
45.50 1.9934 2.8 (4,0,0)
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Energy Properties

Formation Energy/atom
2.89116
eV/atom
Energy/atom
-13.24241
eV/atom
Energy above Hull
3.5146
eV/atom
Uncorrected Energy
-5.1107
eV/atom
Volume/atom
140.07
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
0.0002
μB
Mag. Ordering
NM
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Ti · 0.500
Element Family
3d-TM
Solute Fraction
0.500
Interstitial Fraction
0.000

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
0.4928
Ω > 1.1 favors solid solution
Atomic Size Mismatch δr
6.735%
δr < 6.6% favors single-phase solid solution
Electronegativity Diff Δχ
0.2744
smaller = more stable mixing
VEC
6.250
valence electron concentration, affects phase stability
Mix Enthalpy ΔH_mix
-36.208
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
C
Score
0.474
Family
Ti-based Alloy
Matrix Element
Ti · 0.500

Related Tasks

Related computation task IDs (2)

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-1093541
Reference Citation

The crystal structure and related material properties of Ti2CoRu were obtained from the Materials Project database (MP-ID: mp-1093541, 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_Ti2CoRu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.47805494
_cell_length_b   9.47805494
_cell_length_c   9.47805494
_cell_angle_alpha   128.53978312
_cell_angle_beta   118.60053188
_cell_angle_gamma   84.15959305
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Ti2CoRu
_chemical_formula_sum   'Ti2 Co1 Ru1'
_cell_volume   560.26944525
_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
  Ti  Ti0  1  0.00000000  0.24422200  0.24422200  1.0
  Ti  Ti1  1  0.00000000  0.75577800  0.75577800  1.0
  Co  Co2  1  0.00000000  0.00000000  0.00000000  1.0
  Ru  Ru3  1  0.00000000  0.50000000  0.50000000  1.0
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