Atom Probe Tomography for the Observation of Hydrogen in Materials: A Review

Autor:	Yi-Sheng Chen, Pang-Yu Liu, Ranming Niu, Arun Devaraj, Hung-Wei Yen, Ross K W Marceau, Julie M Cairney
Rok vydání:	2022
Předmět:	Instrumentation
Zdroj:	Microscopy and Microanalysis. 29:1-15
ISSN:	1435-8115 1431-9276
Popis:	Atom probe tomography (APT) is an emerging microscopy technique that has high sensitivity for hydrogen with sub-nanometre-scale spatial resolution, which makes it a unique method to investigate the atomic-scale distribution of hydrogen at interfaces and defects in materials. This article introduces the basics of APT-based hydrogen analysis, particularly the challenge of distinguishing a hydrogen background signal in APT by using hydrogen isotopes, along with strategies to yield high-quality analysis. This article also reviews several important findings on hydrogen distribution in a range of materials, including both structural alloys and functional materials, enabled by using APT. Limitations and future opportunities for hydrogen analysis by APT are also discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::91dbbe651f71e5135a914e9b3f69f3b7 https://doi.org/10.1093/micmic/ozac005 Zobrazit plný text záznamu