题名: |
Indentation Study of 2D Carbides for Manufacturing Novel Multifunctional Composites. |
作者: |
Gogotsi, Y.; Borysiuk, V. N.; Mochalin, V. N. |
关键词: |
Transition metals, Carbides, Mechanical properties, Molecular dynamics, Stress strain relations, Microscopy, Tribology, Nanocarbides, Mxenes, Two-dimensional materials, Carbonitrides, Tensile deformation, Afm (atomic force microscopy), Nanoindentation, Polymer composite films, Md (molecular dynamics), Titanium carbides, Mxene flakes, Mxene films, Mxene nanocomposites |
摘要: |
Two-dimensional (2D) materials beyond graphene are attracting much attention. Recently, we discovered a new family of 2D transition metals carbides and carbonitrides called MXenes. Unlike graphene, MXene family is very diverse and to date the number of synthesized MXenes reaches 17 members, including Ti3C2, Nb2C, V2C, Ta4C3, Cr2TiC2, Mo2TiC2, etc. Although MXenes have shown very attractive electrical, electrochemical properties, their mechanical properties are yet to be characterized. There are neither experimental measurements reported in literature nor prediction of strength and fracture modes for single-layer MXenes. In this 9-month research study, we took the first steps to investigate MXenes mechanical properties in both theoretical and experimental aspects. Molecular dynamics was used to predict stress-strain curves of all Tin+1Cn MXenes under tensile deformation. In addition, atomic force microscopy on Ti3C2 flakes and nanoindentation on Ti3C2-polymer composite films were performed to experimentally characterize MXenes mechanical properties. |
报告类型: |
科技报告 |