Best Practices for Analysis of Carbon Fibers by Atom Probe Tomography
Artikel i vetenskaplig tidskrift, 2021

Carbon fiber technology drives significant development in lightweight and multifunctional applications. However, the microstructure of carbon fibers is not completely understood. A big challenge is to obtain the distribution of heteroatoms, for instance nitrogen, with high spatial resolution in three dimensions. Atom probe tomography (APT) has the potential to meet this challenge, but APT of carbon fibers is still relatively unexplored. We performed APT on three types of carbon fibers, including one high modulus type and two intermediate modulus types. Here, we present the methods to interpret the complex mass spectra of carbon fibers, enhance the mass resolution, and increase the obtained analysis volume. Finally, the origin of multiple hit events and possible methods to mitigate multiple hit events are also discussed. This paper provides guidance for future APT studies on carbon fibers, and thus leads the way to a deeper understanding of the microstructure, and consequently advancements in wide applications of carbon fibers.

mass resolution

multiple hit event

molecular dissociation

anisotropy

quantification

molecular ion

Författare

Marcus Johansen

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Fang Liu

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Microscopy and Microanalysis

1431-9276 (ISSN) 1435-8115 (eISSN)

Vol. In Press

Ämneskategorier

Övrig annan teknik

Annan geovetenskap och miljövetenskap

Multidisciplinär geovetenskap

DOI

10.1017/S1431927621012812

Mer information

Senast uppdaterat

2021-11-04