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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Casati, R. |
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| Kočí, Jan | Prague |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Takiishi, Hidetoshi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2018Effect of Hydrogen Decrepitation Pressure on the Particle Size of Rare Earth Based Alloys for Ni-Mh Battery Production
- 2012Microstructure and Electrochemical Properties of a LaMgAlMnCoNi Based Alloy for Ni/MH Batteriescitations
- 2010The Effect of Cu, P, Ga and Gd on Microstructure and Magnetic Properties in the PrFeCoBNb HD Sintered Magnetscitations
- 2010Effect of Variables the HDDR Processing on Magnetic Properties and Microstructure in Permanent Magnets Based on Pr-Fe-B
- 2010Effect of Hydrogenation Pressure on Microstructure and Mechanical Properties of Ti-13Nb-13Zr Alloy Produced by Powder Metallurgy
- 2008The Effect of the Processing Temperature on the Microstructures of Pr-Fe-Co-B-Nb HDDR Magnetscitations
- 2008A Comparative Study between Low and High-Energy Milling Processes for the Production of HD PrFeCoBNb Sintered Magnetscitations
- 2008Microstructure and Magnetic Properties of PrFeCoBNb Sintered Magnets Produced from HD and HDDR Powderscitations
- 2008X-Ray Diffraction Analysis and Magnetic Properties of Pr-Fe-B HDDR Powders and Magnetscitations
- 2006Curie Temperature Determination of Pr Permanent Magnet Alloyscitations
- 2005The Influence of Pr Concentration on the Magnetic Properties of Pr-Fe-Co-B-Nb HDDR Magnets
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article
Effect of Hydrogen Decrepitation Pressure on the Particle Size of Rare Earth Based Alloys for Ni-Mh Battery Production
Abstract
<jats:p>This paper presents the results obtained from the hydrogenation and decrepitation of three LaNi-based alloys, La<jats:sub>0.7</jats:sub>Mg<jats:sub>0.3</jats:sub>Al<jats:sub>0.3</jats:sub>Mn<jats:sub>0.4</jats:sub>Co<jats:sub>0.5</jats:sub>Ni<jats:sub>3.8</jats:sub>, La<jats:sub>0.7</jats:sub>Mg<jats:sub>0.3</jats:sub>Al<jats:sub>0.3</jats:sub>Mn<jats:sub>0.4</jats:sub>Cu<jats:sub>0.5</jats:sub>Ni<jats:sub>3.8</jats:sub>and La<jats:sub>0.7</jats:sub>Mg<jats:sub>0.3</jats:sub>Al<jats:sub>0.3</jats:sub>Mn<jats:sub>0.4</jats:sub>Sn<jats:sub>0.5</jats:sub>Ni<jats:sub>3.8</jats:sub>, in the as-cast condition. The procedure for decrepitating the alloys to be used in the negative electrode of the batteries was carried out using a combination of various hydrogen pressures (2-9 bar) at room temperature. At 2 bar of H<jats:sub>2</jats:sub>it was revealed that Co, Cu and Sn have influence on the microstructures of the hydrogenated alloys and on the efficiency of hydrogen decrepitation. None of these alloys required thermal heating to activate and start the hydrogen absorption process. The decrepitated materials were characterized by scanning electron microscopy (SEM). The electrochemical measurements were performed using the tested negative electrode between two Ni (OH)<jats:sub>2</jats:sub>electrodes as a battery cell.</jats:p>