Effects of mechanical processing on the kinetics of H2 absorption in Mg2Ni alloys

Autor:	Francesco Delogu, Giorgio Cocco, Gabriele Mulas
Rok vydání:	2009
Předmět:	Work (thermodynamics) Mechanics of Materials Chemistry Mechanical Engineering Composite number Thermal Kinetics Materials Chemistry Metals and Alloys Thermodynamics Mineralogy Absorption kinetics Absorption (electromagnetic radiation)
Zdroj:	Journal of Alloys and Compounds. 473:180-184
ISSN:	0925-8388
DOI:	10.1016/j.jallcom.2008.06.026
Popis:	This work is aimed at quantifying mechanochemical effects in reactive solid–gas systems. It deals in particular with the kinetics of H 2 absorption processes on a Mg 2 Ni/Ni composite under thermal and mechanical activation. In a first series of experiments, powders were exposed to H 2 under static conditions for selected time intervals and successively subjected to mechanical treatment. In a second series, the latter was instead started in coincidence with the exposure of powders to H 2 . The effects of mechanical processing on the H 2 absorption processes have been quantified via the accurate description of the absorption kinetics with suitable model curves. A tentative rationalization of experimental observations is proposed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::367eddd68b4ae2e76aa609c0da18546f https://doi.org/10.1016/j.jallcom.2008.06.026 Zobrazit plný text záznamu Full Text from ScienceDirect