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Al2O3

弹性数据 ELA

MP-ID: mp-1938 · 空间群: Pbcn (#60)

基础信息

化学式
Al2O3
MP-ID
mp-1938
元素数
2
位点数
20
密度
3.9531
g/cm³
体积
171.32
ų
晶胞参数 a
4.8469
Å
晶胞参数 b
4.9854
Å
晶胞参数 c
7.0899
Å
α 角
90.00
°
β 角
90.00
°
γ 角
90.00
°
空间群
Pbcn
点群
mmm
晶体系统
Orthorhombic
布拉维格子
Orthorhombic P
稳定性
否
堆积分数
0.5240

X 射线衍射

衍射图谱
横轴为 2θ (°),纵轴为相对强度,CuKa , λ=1.5406 Å
衍射峰(Top 24)
2θd (Å)Ihkl
25.12 3.5450 12.2 (0,0,2)
28.61 3.1205 14.4 (1,1,1)
36.03 2.4927 35.0 (0,2,0)
36.20 2.4817 100.0 (1,1,2)
37.10 2.4235 19.2 (2,0,0)
38.27 2.3516 5.3 (0,2,1)
41.43 2.1796 19.1 (2,1,0)
42.56 2.1243 34.8 (1,0,3)
42.74 2.1157 15.7 (1,2,1)
43.44 2.0834 19.4 (2,1,1)
44.43 2.0391 1.7 (0,2,2)
46.47 1.9542 15.2 (1,1,3)
48.43 1.8795 14.3 (1,2,2)
51.56 1.7725 21.4 (0,0,4)
52.68 1.7376 44.2 (2,2,0)
53.42 1.7150 1.5 (0,2,3)
54.36 1.6877 7.1 (2,2,1)
56.96 1.6168 1.1 (1,2,3)
58.45 1.5790 15.2 (1,1,4)
58.60 1.5753 1.5 (3,0,1)
59.22 1.5603 7.8 (2,2,2)
60.31 1.5347 20.8 (1,3,1)
61.76 1.5021 1.7 (3,1,1)
64.51 1.4445 28.0 (0,2,4)
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能量属性

形成能/原子
-3.33320
eV/atom
能量/原子
-7.80020
eV/atom
凸包距离
0.0934
eV/atom
未修正能量
-7.3880
eV/atom
体积/原子
8.57
ų
c/a 比
-

电子属性

金属性
非金属
带隙
5.313
eV
直接带隙
是
导带底 CBM
N/A
eV

磁性属性

磁性
否
总磁矩
0.0001
μB
磁有序
NM
磁性位点数
0
磁化强度/体积
0.000000
μB/ų

弹性属性

体积模量 KVRH
231.614
GPa
剪切模量 GVRH
146.396
GPa
杨氏模量 E
362.759
GPa
泊松比 ν
0.239
Pugh 比 K/G
1.582
维氏硬度估算
18.615
GPa
韧性
Ductile
各向异性
0.136
拉梅 λ
134.017
GPa

特征分析

组成概览

元素组成(原子分数)
组成信息
主元 / 基质元素
O · 0.600
元素家族
Metalloid-Nonmetal
溶质分数
0.400
间隙分数
0.000

弹性数据特征

弹性模量对比 (GPa)
弹性特征
弹性各向异性 AU
0.1360
均匀泊松比 ν
0.2390
Debye 温度
1,213.5
K
声速
6,747.4
m/s
均匀度
0.2390

关联任务

引用参考

Materials Project 官方页面
https://materialsproject.org/materials/mp-1938
参考引用

The crystal structure and related material properties of Al2O3 were obtained from the Materials Project database (MP-ID: mp-1938, database version v2026.04.13).

文献引用

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.}
}

晶体结构 3D 渲染

加载 3D 结构...

样式: Ball & Stick
原始 CIF 数据
# generated using pymatgen
data_Al2O3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.84693300
_cell_length_b   4.98540400
_cell_length_c   7.08994100
_cell_angle_alpha   90.00000000
_cell_angle_beta   90.00000000
_cell_angle_gamma   90.00000000
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Al2O3
_chemical_formula_sum   'Al8 O12'
_cell_volume   171.32076122
_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
  Al  Al0  1  0.25215200  0.03051400  0.39039500  1.0
  Al  Al1  1  0.25215200  0.46948600  0.60960500  1.0
  Al  Al2  1  0.24784800  0.53051400  0.10960500  1.0
  Al  Al3  1  0.24784800  0.96948600  0.89039500  1.0
  Al  Al4  1  0.74784800  0.96948600  0.60960500  1.0
  Al  Al5  1  0.74784800  0.53051400  0.39039500  1.0
  Al  Al6  1  0.75215200  0.46948600  0.89039500  1.0
  Al  Al7  1  0.75215200  0.03051400  0.10960500  1.0
  O  O8  1  0.10702100  0.10197600  0.65400200  1.0
  O  O9  1  0.10702100  0.39802400  0.34599800  1.0
  O  O10  1  0.39297900  0.60197600  0.84599800  1.0
  O  O11  1  0.39297900  0.89802400  0.15400200  1.0
  O  O12  1  0.89297900  0.89802400  0.34599800  1.0
  O  O13  1  0.89297900  0.60197600  0.65400200  1.0
  O  O14  1  0.60702100  0.39802400  0.15400200  1.0
  O  O15  1  0.60702100  0.10197600  0.84599800  1.0
  O  O16  1  0.04940400  0.25000000  0.00000000  1.0
  O  O17  1  0.45059600  0.75000000  0.50000000  1.0
  O  O18  1  0.95059600  0.75000000  0.00000000  1.0
  O  O19  1  0.54940400  0.25000000  0.50000000  1.0
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