A Numerical Study on the Validity of the Local Equilibrium Hypothesis in Modeling Hydrogen Thermal Desorption Spectra

Autor:	Ken-ichi Ebihara, Hideo Kaburaki, Tomoaki Suzudo, Kenichi Takai
Rok vydání:	2009
Předmět:	Computer simulation Hydrogen Chemistry Mechanical Engineering Numerical analysis Metals and Alloys Thermal desorption Thermodynamics chemistry.chemical_element Spectral line Mechanics of Materials Materials Chemistry Limit (mathematics) Diffusion (business) Conservation of mass
Zdroj:	ISIJ International. 49:1907-1913
ISSN:	1347-5460 0915-1559
DOI:	10.2355/isijinternational.49.1907
Popis:	We present a systematic benchmark study on different numerical models for analyzing hydrogen thermal desorption spectra, by focusing on the adoption of the local equilibrium hypothesis in these models. We find that the direct numerical method of the full set of the extended mass conservation equations is only able to predict the experimental behavior of thermal desorption spectra for pure iron in the thin specimen limit, while other models incorporating the local equilibrium hypothesis fail to predict this behavior.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1b664d7708c660aa7804b40510e9ee4b https://doi.org/10.2355/isijinternational.49.1907 Zobrazit plný text záznamu