Specimen preparation for transverse modulus measurement of carbon fibres using focused ion beam
Paper in proceedings, 2019

Transverse Young’s modulus of carbon fibres is an important material property for micromechanical modeling and design of carbon fibre reinforced composites. To accurately measure their transverse Young’s modulus is of special importance for applications in novel multifunctional devices, such as structural composite batteries. However, experimental measurement of their transverse Young’s modulus is still largely lacking due to experimental challenges. In this study, we successfully prepared high quality longitudinal cross sections from a commercial carbon fibre using precision ion milling in a combined focused ion beam and scanning electron microscope (FIB/SEM) instrument. These cross sections were then directly used in an atomic force microscope (AFM) and a nanoindentation equipment to measure the transverse Young’s modulus. Here, the entire procedure is described in detail. In particular, the most critical aspects for specimen preparation are identified and discussed.

Author

Fang Liu

Chalmers, Industrial and Materials Science, Materials and manufacture

Shanghong Duan

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Leif Asp

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

The 22nd International Conference on Composite Materials, ICCM22
Melbourne, Australia,

Damage Tolerance and Durability of Structural Power Composites

US Air Force Office of Strategic Research (AFOSR), 2017-09-30 -- 2020-09-29.

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance

Transport

Energy

Materials Science

Subject Categories

Textile, Rubber and Polymeric Materials

Materials Chemistry

Composite Science and Engineering

Infrastructure

Chalmers Materials Analysis Laboratory

More information

Latest update

8/6/2020 9