The Influence of Ti + TiC Additive on Thermal Stability and Decomposition Kinetics of Nanosized MgH2 Phase in Mg-Based Mechanical Alloys

Ershova, O. G.; Dobrovolsky, V. D.; Solonin, Yu. M.

doi:10.1007/s11106-023-00398-x

Cited by 2 publications

(1 citation statement)

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“…As shown by the review of studies conducted in recent years [31] - [40], one of the important and relevant tasks in the research of mechanical alloys (MA) obtained by reactive mechanical alloying (RMA) of magnesium with a small addition (5 -10 wt. %) of a transition metal (Ti, Fe, Ni) in ball mills is to increase the rate of cyclic dehydrogenation/hydrogenation and the cyclic stability of the synthesized MA while simultaneously reducing the dissociation temperature of their nanosized MgH2 hydride phase.…”

Section: Introductionmentioning

confidence: 99%

The Role of Fe Admixture, Method, and Conditions for Obtaining Mg + 10 Wt.% Fe Mechanical Alloy in Improving Its Hydrogen Sorption Characteristics and Kinetics of the Cyclic Dehydrogenation/Hydrogenation Process

Ershova,

Dobrovolsky

2024

Education and Science of Today: Intersectoral Issues and Development of Sciences

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The paper reviews and analyzes studies by various authors on synthesizing mechanical alloys (MA) of the Mg-Fe-H system using the mechanochemical method. The research focuses on the Mg + 10 wt. % Fe alloy as an example. It investigates how adding a small amount of Fe, which acts as a catalyst, and varying the method and conditions for obtaining mechanical alloys affect their hydrogen sorption properties, cyclic hydrogen de-/sorption kinetics, and thermal stability. The study highlights the significant influence of the MA synthesis method on its kinetic characteristics. It is shown that milling the initial mixture of Mg and Fe metal powders in argon (as opposed to milling in a hydrogen atmosphere) provides better kinetics of the cyclic de/hydriding process of MA and its hydrogen sorption characteristics. Furthermore, the research delves into the mechanism by which the method and conditions for obtaining the mechanical alloy Mg + 10 wt. % Fe impact the kinetics of the cyclic hydrogen de/sorption process, explaining the factors that give this MA an advantage in hydrogen desorption kinetics. Education and science of today: intersectoral issues and development of sciences SECTION 18.

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Section: Introductionmentioning

confidence: 99%