Analysis of the elastic-stressed state of disclination configurations in the nanograin boundary

16th International Conference of Students and Young Scientists "Prospects of Fundamental Sciences Development"

自然科学（总论）

Zaytsev, D.S.^1 ; Sukhanov, I.I.^1^2 ; Ditenberg, I.A.^1^2^3

National Research Tomsk State University, Tomsk

634050, Russia^1

Institute of Strength Physics and Materials Science SB RAS, Tomsk

634055, Russia^2

Siberian Physical-Technical Institute, Tomsk

634050, Russia^3

关键词: Bending-torsion;    Disclinations;    Nanograin boundaries;    Stress field;    Stressed state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/597/1/012046/pdf
DOI  :  10.1088/1757-899X/597/1/012046

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Disclination models of grain boundaries in crystals are considered. The features of the spatial distribution of the configuration stress fields depending on number of disclinations and magnitude of the common Frank's vector are described. The estimate of the energy of the configurations based on the calculations in a wide range of values of the bending-torsion tensor 0.2...1.8 degrees per nanometer was obtained. It was shown that the energy of the equidistant model is higher than the energy of the other two with irregular distribution of disclinations.