TY  - JOUR
AU  - Abazović, Nadica
AU  - Aurora, A.
AU  - Contini, V.
AU  - Mancini, M. R.
AU  - Montone, A.
AU  - Antisari, M. Vittori
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6874
AB  - Micro-composite materials based on MgH2 with the addition of a relevant amount of LaNi5 have been synthesized by reactive ball milling. The powder microstructure has been studied by a combination of X-ray diffraction and scanning electron microscopy, while the decomposition behaviour and the hydrogen release properties have been obtained by differential thermal analysis and thermo-gravimetric measurements. Both temperature scans and constant temperature isotherms have been used to this purpose. Experimental results allow identifying optimum processing condition for synthesis of material that shows the onset of hydrogen release at temperatures as low as 450 K. The decomposition kinetics has been studied by isothermal measurements which show that the whole process cannot be described by just one mechanism limiting the reaction velocity. In fact in the first decomposition step the reaction is kinetically limited by the second phase nucleation, while, for partially decomposed samples the bulk diffusion appears to limit the process. On the basis of the experimental results we propose a mechanism of phase transformation where a percolating network of the two phases is formed.
T2  - Acta Physica Polonica A
T1  - Hydrogen Release and Microstructure of MgH2 Based Composite Powders Containing a Relevant Amount of LaNi5
VL  - 117
IS  - 5
SP  - 841
EP  - 848
DO  - 10.12693/APhysPolA.117.841
ER  - 

@article{
author = "Abazović, Nadica and Aurora, A. and Contini, V. and Mancini, M. R. and Montone, A. and Antisari, M. Vittori",
year = "2010",
abstract = "Micro-composite materials based on MgH2 with the addition of a relevant amount of LaNi5 have been synthesized by reactive ball milling. The powder microstructure has been studied by a combination of X-ray diffraction and scanning electron microscopy, while the decomposition behaviour and the hydrogen release properties have been obtained by differential thermal analysis and thermo-gravimetric measurements. Both temperature scans and constant temperature isotherms have been used to this purpose. Experimental results allow identifying optimum processing condition for synthesis of material that shows the onset of hydrogen release at temperatures as low as 450 K. The decomposition kinetics has been studied by isothermal measurements which show that the whole process cannot be described by just one mechanism limiting the reaction velocity. In fact in the first decomposition step the reaction is kinetically limited by the second phase nucleation, while, for partially decomposed samples the bulk diffusion appears to limit the process. On the basis of the experimental results we propose a mechanism of phase transformation where a percolating network of the two phases is formed.",
journal = "Acta Physica Polonica A",
title = "Hydrogen Release and Microstructure of MgH2 Based Composite Powders Containing a Relevant Amount of LaNi5",
volume = "117",
number = "5",
pages = "841-848",
doi = "10.12693/APhysPolA.117.841"
}

Abazović, N., Aurora, A., Contini, V., Mancini, M. R., Montone, A.,& Antisari, M. V.. (2010). Hydrogen Release and Microstructure of MgH2 Based Composite Powders Containing a Relevant Amount of LaNi5. in Acta Physica Polonica A, 117(5), 841-848.
https://doi.org/10.12693/APhysPolA.117.841

Abazović N, Aurora A, Contini V, Mancini MR, Montone A, Antisari MV. Hydrogen Release and Microstructure of MgH2 Based Composite Powders Containing a Relevant Amount of LaNi5. in Acta Physica Polonica A. 2010;117(5):841-848.
doi:10.12693/APhysPolA.117.841 .

Abazović, Nadica, Aurora, A., Contini, V., Mancini, M. R., Montone, A., Antisari, M. Vittori, "Hydrogen Release and Microstructure of MgH2 Based Composite Powders Containing a Relevant Amount of LaNi5" in Acta Physica Polonica A, 117, no. 5 (2010):841-848,
https://doi.org/10.12693/APhysPolA.117.841 . .