Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7721327 | International Journal of Hydrogen Energy | 2013 | 5 Pages |
Abstract
Neutron radiography (NR) is compared with the commonly used carrier gas hot extraction (CGHE) technique. We performed isothermal hydrogen effusion experiments at 623Â K to study the mass transport kinetics. The investigated material was technical iron. The quantification of the hydrogen mass flow is done for NR by using concentration standards. The temporal hydrogen concentration evolution in the sample coincides well for both methods, i.e. NR and CGHE, and is in good agreement with literature. The advantages of the NR method are the non-destructive nature of measuring and the in-situ determination of hydrogen concentrations with high spatial and temporal resolution. Remaining hydrogen inside the sample can be identified directly by the NR method.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Axel Griesche, Eusebio Solórzano, Katrin Beyer, Thomas Kannengiesser,