Hydriding kinetics of the La1.5Ni0.5Mg17–H system prepared by hydriding combustion synthesis

Li, Q.; Qin, Lin; Chou, Kuo‐Chih; Jiang, Lijun; Zhan, Feng

doi:10.1016/j.intermet.2004.03.024

Cited by 15 publications

(5 citation statements)

References 23 publications

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“…In this case, a transformation of the variable is required prior to using our formulae. It must be kept in mind that for some substances the maximum oxidation increment Δ m max actually varies with temperature as a different oxide product is formed with temperature changing; therefore, one has to consider this factor in the treatment of these formulae. Figure 8 shows an example of using to deal with the absorption of hydrogen at different hydrogen partial pressures. An excellent agreement between experiment data 21 and theoretical prediction demonstrates that the formulae derived here can also be used in the other field of materials science as long as they have a similar mechanism.…”

Section: Discussionsupporting

confidence: 64%

See 1 more Smart Citation

A Kinetic Model for Oxidation of Si–Al–O–N Materials

Chou

2006

Journal of the American Ceramic Society

108

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In this paper a new model has been proposed to describe the oxidation of Si-Al-O-N materials in both isothermal and nonisothermal conditions in the form of powders and pellets. All these formulae are analytic with a form of explicit function; therefore, they are not only easy to use but also enable the easy performance of a theoretical analysis. The application of these formulae to practical systems shows that this model is feasible; moreover, these formulae can not only be used to treat the oxidation for Si-Al-O-N materials but also be applied to treat reactions in other fields of materials. Nomenclature aOriginal inorganic material phase bInorganic non-metallic material phase (after oxidation) DeActivation energy of oxidation De ap Apparent activation energy of oxidation xReacted fraction of oxidation II. General Mechanism of Oxidation of Si-Al-O-N MaterialsFor convenience, let us take the oxidation of Al 23 O 27 N as an example to start our analysis. It is well known that the oxidation J ournal

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Section: Discussionsupporting

confidence: 64%

“…Figure 8 shows an example of using to deal with the absorption of hydrogen at different hydrogen partial pressures. An excellent agreement between experiment data 21 and theoretical prediction demonstrates that the formulae derived here can also be used in the other field of materials science as long as they have a similar mechanism.…”

Section: Discussionsupporting

confidence: 64%

A Kinetic Model for Oxidation of Si–Al–O–N Materials

Chou

2006

Journal of the American Ceramic Society

108

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“…5 shows the fitted hydrogen desorption kinetic curves of the hydrogenated samples. The three-dimensional diffusion model [26] is employed to characterize the H diffusion property as described in the following equation:…”

Section: Microstructuresmentioning

confidence: 99%

Investigation on hydrogenation performance of Mg2Ni+10 wt.% NbN composite

Zhao

Han

Zhu

et al. 2015

Journal of Solid State Chemistry

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“…It has its own limitation as just being suitable for small conversion rates and stable diffusion. Li et al [16] have carried out an experimental investigation of the hydrogen absorption rate in the two-phase region (a þ b) of La 1.5 Ni 0.5 Mg 17 powder and used the Jander diffusion model to interpret the results, which suggest that the rate-controlling step of hydrogen absorption in La 1.5 Ni 0.5 Mg 17 is a three-dimensional diffusion process. Paik et al [17] have evaluated the reaction kinetics on the spinel formation reaction of Mg-ferrite formation during the heat-treatment of ferric and magnesium oxide powders using Jander model and Ginstlinge Brounstein model.…”

Section: Kinetics Modelsmentioning

confidence: 99%