Electromagnetic properties and structure of superconducting materials based on AHP-FCE model

In this paper, the electromagnetic properties and structural characteristics of superconducting materials are studied based on AHP hierarchical analysis and FCE fuzzy comprehensive evaluation method. A sub-analytical model is established using hierarchical analysis and a weight set is established using FCE fuzzy comprehensive evaluation method, respectively, and a comprehensive evaluation model is established to study the average magnetization intensity and vortex of samples with different pore size types and sizes under the same conditions. Then the superconducting current situation at special locations is studied, focusing on summarizing the structural characteristics of most typical superconductors. The number of vortices in the superconducting square tube gradually decreases as the pore size increases. The maximum absolute value of its average magnetization intensity decreases with the increase of the aperture diameter, while its penetrating magnetic field increases subsequently. The superconducting square tube remains in the superconducting state until the magnetic field reaches a certain value. Most of the superconducting material structures are hierarchical crystal structures, such as MgB2, a simple binary and substance of simple hexagonal crystal system, and AlB2 type simple hexagonal structure with theoretical density of 2.605g/cm3 and dot constants of a=30.84nm and c=35.24nm, which belong to the P6/mmm space group. Superconductors not only have zero resistance properties at critical temperature, but also have electromagnetic properties that conventional conductors do not have at all under certain conditions, so it is important to study the properties of superconducting materials. © 2023 Qing Feng, published by Sciendo.