Morozov Nikolai S, Shulyak Vladimir A, Isaenkova Margarita G, Krymskaya Olga A, Fesenko Vladimir A, Chebotarev Sergei N, Avdeev Victor V
Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia.
MEPhI (Moscow Engineering Physics Institute), National Research Nuclear University, Moscow 115409, Russia.
Materials (Basel). 2024 Dec 17;17(24):6153. doi: 10.3390/ma17246153.
In this research paper, the factors impacting electrical conductivity of the flexible graphite foils (GFs) produced by different forming processes, namely, either by rolling or pressing, were studied. The relationship between electrical conductivity and texture and structure that formed when producing the material was examined. Correlation was determined between the texture sharpness and anisotropy of electrical conductivity, as well as the extent of impact from the substructural characteristics on the properties' values. Besides, it was demonstrated that the higher values of micro-strains, as well as the secondary phase substructure, reduced conductivity in foils. Electrical conductivity calculation was optimized for different directions in foils using the Kearns texture parameters and taking into consideration the foil structural characteristics.
在本研究论文中，研究了不同成型工艺（即轧制或压制）生产的柔性石墨箔（GFs）的电导率影响因素。研究了生产材料时形成的电导率与织构和结构之间的关系。确定了织构清晰度与电导率各向异性之间的相关性，以及亚结构特征对性能值的影响程度。此外，结果表明，较高的微应变值以及第二相亚结构会降低箔材的电导率。利用卡恩斯织构参数并考虑箔材结构特征，对箔材不同方向的电导率计算进行了优化。
