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SiC

弹性数据 ELA

MP-ID: mp-11714 · Space group: P6_3mc (#186)

Materials Project API

Basic Information

Formula
SiC
MP-ID
mp-11714
Elements
2
Sites
8
Density
3.2280
g/cm³
Volume
82.50
ų
Cell a
3.0757
Å
Cell b
3.0757
Å
Cell c
10.0707
Å
α Angle
90.00
°
β Angle
90.00
°
γ Angle
120.00
°
Space Group
P6_3mc
Point Group
6mm
Crystal System
Hexagonal
Bravais Lattice
hP
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 24)
2θd (Å)Ihkl
33.65 2.6636 8.2 (1,0,-1,0)
33.65 2.6636 16.4 (1,-1,0,0)
34.84 2.5751 100.0 (1,0,-1,1)
35.66 2.5177 66.6 (0,0,0,4)
38.23 2.3545 33.2 (1,0,-1,2)
38.23 2.3545 66.3 (1,-1,0,2)
43.37 2.0866 11.9 (1,0,-1,3)
43.37 2.0866 6.0 (1,-1,0,3)
49.84 1.8297 8.7 (1,0,-1,4)
57.35 1.6065 17.1 (1,0,-1,5)
57.35 1.6065 8.6 (1,-1,0,5)
60.17 1.5379 40.1 (2,-1,-1,0)
60.17 1.5379 20.0 (1,-2,1,0)
65.76 1.4200 46.0 (1,0,-1,6)
70.74 1.3318 1.5 (2,-2,0,0)
71.45 1.3203 7.0 (2,0,-2,1)
71.45 1.3203 3.5 (2,-2,0,1)
71.95 1.3124 30.9 (2,-1,-1,4)
71.95 1.3124 15.5 (1,-2,1,4)
73.56 1.2875 10.5 (2,0,-2,2)
73.56 1.2875 5.2 (2,-2,0,2)
75.04 1.2658 6.2 (1,0,-1,7)
75.53 1.2588 3.4 (0,0,0,8)
77.03 1.2380 1.3 (2,0,-2,3)
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Energy Properties

Formation Energy/atom
-0.30565
eV/atom
Energy/atom
-9.66615
eV/atom
Energy above Hull
0.0003
eV/atom
Uncorrected Energy
-9.6662
eV/atom
Volume/atom
10.31
ų
c/a Ratio
3.2743

Electronic Properties

Metallic
Non-metal
Band Gap
2.220
eV
Direct Gap
No
CBM
N/A
eV

Magnetic Properties

Magnetic
Yes
Total Mag. Moment
0.0000
μB
Mag. Ordering
Unknown
Mag. Sites
0
Magnetization/Volume
0.000000
μB/ų

Elastic Properties

KVRH
213.331
GPa
GVRH
188.708
GPa
Young's Modulus E
437.209
GPa
Poisson Ratio ν
0.158
Pugh Ratio K/G
1.130
Vickers Hardness Est.
34.158
GPa
Ductility
Ductile
Anisotropy
0.134
Lame λ
87.526
GPa

Feature Analysis

Element Composition (atomic fraction)
Composition Info
Major / Matrix Element
Si · 0.500
Element Family
Metalloid-Nonmetal
Solute Fraction
0.500
Interstitial Fraction
1.000
Elastic Modulus Comparison (GPa)
Elastic Features
Elastic Anisotropy AU
0.1340
Homogeneous Poisson ν
0.1580
Debye Temperature
1,149.2
K
Sound Velocity
8,404.7
m/s
Homogeneity
0.1580

Related Tasks

Related computation task IDs (6)
aaabmpzy aaacllcf aaadweec aaaempri aaaeoyeb aaafbjix

Citation & References

Materials Project Page
https://materialsproject.org/materials/mp-11714
Reference Citation

The crystal structure and related material properties of SiC were obtained from the Materials Project database (MP-ID: mp-11714, 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

Loading 3D structure…

Style: Ball & Stick
Raw CIF Data 
# generated using pymatgen
data_SiC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.07569427
_cell_length_b   3.07569403
_cell_length_c   10.07064648
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   119.99999194
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SiC
_chemical_formula_sum   'Si4 C4'
_cell_volume   82.50386818
_cell_formula_units_Z   4
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
  Si  Si0  1  0.66666700  0.33333300  0.93784198  1.0
  Si  Si1  1  0.33333300  0.66666700  0.43784198  1.0
  Si  Si2  1  -0.00000000  0.00000000  0.68789438  1.0
  Si  Si3  1  0.00000000  -0.00000000  0.18789438  1.0
  C  C4  1  0.66666700  0.33333300  0.74980259  1.0
  C  C5  1  0.33333300  0.66666700  0.24980259  1.0
  C  C6  1  0.00000000  0.00000000  0.50046005  1.0
  C  C7  1  -0.00000000  -0.00000000  0.00046005  1.0
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