Structural Transformation of Bilayer Ferro-foams Caused by Homogeneous Static Magnetic Field

9th International Symposium on Electromagnetic Processing of Materials

材料科学;物理学

Chen, Wang^1 ; Dong, Hua-Qiao^1 ; Wang, Song-Bao^1 ; Lei, Zuo-Sheng^1 ; Guo, Jia-Hong^2

State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferro-metallurgy, School of Materials Science and Engineering, Shanghai University, Shanghai

200072, China^1

Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai

20072, China^2

关键词: Energy minimization principle;    Homogeneous magnetic field;    Magnetic interactions;    Plateau borders;    Self-organizational behavior;    Static magnetic fields;    Structural transformation;    Structure transformations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/424/1/012077/pdf
DOI  :  10.1088/1757-899X/424/1/012077

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Structural transformation of honeycomb structure bilayer ferro-foams caused by homogeneous magnetic field is investigated in this paper. Previous researchers have proved that monodisperse bilayer foams with honeycomb structure can transform reversibly by changing foam liquid fraction. However, we have observed that, when applying a homogeneous magnetic field, bilayer foams can also perform this transformation at a constant liquid fraction. This self-organizational behavior of foam structure is believed to be based on energy minimization principle, the magnetic interaction of Ferro-foams Plateau borders change the total energy of the whole system, which trigger the structure transformation process.