Dy10Al3Co

High-Entropy Materials HEA Traditional Materials TRA

MP-ID: mp-3292365 · Space group: P6_3/mmc (#194)

Materials Project API

Basic Information

Formula

Dy10Al3Co

MP-ID

mp-3292365

Elements

Sites

Density

7.8978

g/cm³

Volume

742.14

Å³

Cell a

9.4516

Cell b

9.4516

Cell c

9.5929

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

Stability

Yes

Packing Fraction

0.7405

X-ray Diffraction

Diffraction Pattern

Target / Radiation

X-axis: 2θ (°); Y-axis: relative intensity; Cu Kα ; λ=1.5418 Å

Diffraction Peaks (Top 24)

2θ	d (Å)	I	hkl
10.81	8.1853	13.5	(1,0,-1,0)
14.22	6.2267	4.8	(1,0,-1,1)
18.50	4.7965	4.3	(0,0,0,2)
21.47	4.1383	25.6	(1,0,-1,2)
21.72	4.0926	1.3	(2,0,-2,0)
23.63	3.7644	8.5	(2,0,-2,1)
26.48	3.3663	1.6	(2,-1,-1,2)
28.67	3.1133	40.6	(2,0,-2,2)
28.86	3.0938	22.2	(1,2,-3,0)
28.86	3.0938	44.4	(3,-1,-2,0)
30.00	2.9784	63.7	(1,0,-1,3)
30.36	2.9444	25.1	(3,-1,-2,1)
32.83	2.7284	20.8	(3,0,-3,0)
34.17	2.6244	29.0	(0,3,-3,1)
34.17	2.6243	58.0	(3,0,-3,1)
34.50	2.5999	50.0	(1,2,-3,2)
34.50	2.5999	100.0	(3,-1,-2,2)
35.63	2.5197	50.7	(2,0,-2,3)
37.50	2.3982	10.7	(0,0,0,4)
38.08	2.3629	24.0	(4,-2,-2,0)
40.57	2.2234	19.6	(3,-1,-2,3)
42.26	2.1386	2.2	(2,-1,-1,4)
42.66	2.1196	1.8	(4,-2,-2,2)
43.61	2.0756	5.6	(3,0,-3,3)

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Energy Properties

Formation Energy/atom

-0.26221

eV/atom

Energy/atom

-25.49425

eV/atom

Energy above Hull

0.0000

eV/atom

Uncorrected Energy

-25.4943

eV/atom

Volume/atom

26.51

Å³

c/a Ratio

1.0150

Electronic Properties

Metallic

Metal

Band Gap

Direct Gap

CBM

N/A

Magnetic Properties

Magnetic

Yes

Total Mag. Moment

0.4979

μB

Mag. Ordering

Mag. Sites

Magnetization/Volume

0.000670

μB/Å³

Elastic Properties

Elastic data not available

Feature Analysis

Composition Overview

Element Composition (atomic fraction)

Composition Info

Major / Matrix Element

Dy · 0.714

Element Family

Lanthanide

Solute Fraction

0.286

Interstitial Fraction

0.000

High-Entropy Alloy Features

Composite Radar (normalized)

Element-Class Share

Mix Entropy ΔS/R

0.7589

HEA criterion (>1.0 = high entropy)

Mix Entropy ΔS

6.3098

J/mol·K

Ω Parameter

8.2791

Ω > 1.1 favors solid solution

Atomic Size Mismatch δr

10.334%

δr < 6.6% favors single-phase solid solution

Electronegativity Diff Δχ

0.2159

smaller = more stable mixing

VEC

8.429

valence electron concentration, affects phase stability

Mix Enthalpy ΔH_mix

-1.163

kJ/mol; negative = exothermic mixing

Entropy Norm

0.6908

SS Former

Phase Tendency

Traditional Material Features

ROM Blended-Feature Radar

Rating & Classification

Tier

Score

0.669

Family

Dy-rich Multi-Component

Matrix Element

Dy · 0.714

Related Tasks

Related computation task IDs (1)

aaahfijl

Citation & References

Materials Project Page

https://materialsproject.org/materials/mp-3292365

Reference Citation

The crystal structure and related material properties of Dy10Al3Co were obtained from the Materials Project database (MP-ID: mp-3292365, 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_Dy10Al3Co
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.45155659
_cell_length_b   9.45155745
_cell_length_c   9.59292738
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999702
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Dy10Al3Co
_chemical_formula_sum   'Dy20 Al6 Co2'
_cell_volume   742.14457837
_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
  Dy  Dy0  1  0.00000000  0.00000000  0.50000000  1.0
  Dy  Dy1  1  0.00000000  0.00000000  0.00000000  1.0
  Dy  Dy2  1  0.54246863  0.45753137  0.25000000  1.0
  Dy  Dy3  1  0.54246863  0.08493725  0.25000000  1.0
  Dy  Dy4  1  0.91506275  0.45753137  0.25000000  1.0
  Dy  Dy5  1  0.45753137  0.54246863  0.75000000  1.0
  Dy  Dy6  1  0.45753137  0.91506275  0.75000000  1.0
  Dy  Dy7  1  0.08493725  0.54246863  0.75000000  1.0
  Dy  Dy8  1  0.20965260  0.79034740  0.43603927  1.0
  Dy  Dy9  1  0.20965260  0.41930720  0.43603927  1.0
  Dy  Dy10  1  0.58069280  0.79034740  0.43603927  1.0
  Dy  Dy11  1  0.79034740  0.20965260  0.56396073  1.0
  Dy  Dy12  1  0.79034740  0.58069280  0.56396073  1.0
  Dy  Dy13  1  0.41930720  0.20965260  0.56396073  1.0
  Dy  Dy14  1  0.79034740  0.20965260  0.93603927  1.0
  Dy  Dy15  1  0.79034740  0.58069280  0.93603927  1.0
  Dy  Dy16  1  0.41930720  0.20965260  0.93603927  1.0
  Dy  Dy17  1  0.20965260  0.79034740  0.06396073  1.0
  Dy  Dy18  1  0.20965260  0.41930720  0.06396073  1.0
  Dy  Dy19  1  0.58069280  0.79034740  0.06396073  1.0
  Al  Al20  1  0.88932985  0.11067015  0.25000000  1.0
  Al  Al21  1  0.88932985  0.77865970  0.25000000  1.0
  Al  Al22  1  0.22134030  0.11067015  0.25000000  1.0
  Al  Al23  1  0.11067015  0.88932985  0.75000000  1.0
  Al  Al24  1  0.11067015  0.22134030  0.75000000  1.0
  Al  Al25  1  0.77865970  0.88932985  0.75000000  1.0
  Co  Co26  1  0.33333300  0.66666700  0.25000000  1.0
  Co  Co27  1  0.66666700  0.33333300  0.75000000  1.0

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