Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process
The present investigation focuses on the preparation of LaNi5 intermetallic compound by “Metallothermic reduction diffusion process”. Experiments were carried out using oxides and chlorides of La and Ni metal powders as the raw materials with granular Mg powder as the reductant. The thermal...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2016-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600015G.pdf |
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| author | Giresan G. Sankaranarayanan S.R. Berchmans L.J. |
| author_facet | Giresan G. Sankaranarayanan S.R. Berchmans L.J. |
| author_sort | Giresan G. |
| collection | DOAJ |
| description | The present investigation focuses on the preparation of LaNi5 intermetallic
compound by “Metallothermic reduction diffusion process”. Experiments were
carried out using oxides and chlorides of La and Ni metal powders as the raw
materials with granular Mg powder as the reductant. The thermal reduction
process was carried out at 900 ºC for 9 hrs in Ar atmosphere. After the
completion of reaction, the contents were purified by treating with dilute
acetic acid followed by de-ionized water. Thermodynamic feasibility studies
were carried out to determine the probabilistic nature of formation of the
desired compound. Thermal analysis was carried out to find the dissociation
and decomposition temperature of the reactants. The phase purity and the
elemental composition of the alloy were assessed by XRD and EDX analyses. The
morphological features of the prepared powders were examined by SEM. From
this study, it has been concluded that LaNi5 alloy can be prepared with an
appreciable purity by the Metallothermic reduction diffusion process. |
| format | Article |
| id | doaj-art-2679451e3bd24e6090310fb57b9da0b8 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-2679451e3bd24e6090310fb57b9da0b82025-02-02T01:03:33ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752016-01-0152217117510.2298/JMMB150405015G1450-53391600015GInvestigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion processGiresan G.0Sankaranarayanan S.R.1Berchmans L.J.2National Institute of Technology, Department of Metallurgical and Materials Engineering, Tiruchirappalli, Tamilnadu, IndiaNational Institute of Technology, Department of Metallurgical and Materials Engineering, Tiruchirappalli, Tamilnadu, IndiaCSIR-Central Electrochemical Research Institute, Electropyrometallurgy Division, Karaikudi, Tamilnadu, IndiaThe present investigation focuses on the preparation of LaNi5 intermetallic compound by “Metallothermic reduction diffusion process”. Experiments were carried out using oxides and chlorides of La and Ni metal powders as the raw materials with granular Mg powder as the reductant. The thermal reduction process was carried out at 900 ºC for 9 hrs in Ar atmosphere. After the completion of reaction, the contents were purified by treating with dilute acetic acid followed by de-ionized water. Thermodynamic feasibility studies were carried out to determine the probabilistic nature of formation of the desired compound. Thermal analysis was carried out to find the dissociation and decomposition temperature of the reactants. The phase purity and the elemental composition of the alloy were assessed by XRD and EDX analyses. The morphological features of the prepared powders were examined by SEM. From this study, it has been concluded that LaNi5 alloy can be prepared with an appreciable purity by the Metallothermic reduction diffusion process.http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600015G.pdfmaterials processingintermetallic compoundMetallothermic reductionXRD and SEM |
| spellingShingle | Giresan G. Sankaranarayanan S.R. Berchmans L.J. Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process Journal of Mining and Metallurgy. Section B: Metallurgy materials processing intermetallic compound Metallothermic reduction XRD and SEM |
| title | Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process |
| title_full | Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process |
| title_fullStr | Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process |
| title_full_unstemmed | Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process |
| title_short | Investigation on the thermodynamic analysis, preparation and characterization of LaNi5 - hydrogen storage alloy by magnesiothermic reduction diffusion process |
| title_sort | investigation on the thermodynamic analysis preparation and characterization of lani5 hydrogen storage alloy by magnesiothermic reduction diffusion process |
| topic | materials processing intermetallic compound Metallothermic reduction XRD and SEM |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2016/1450-53391600015G.pdf |
| work_keys_str_mv | AT giresang investigationonthethermodynamicanalysispreparationandcharacterizationoflani5hydrogenstoragealloybymagnesiothermicreductiondiffusionprocess AT sankaranarayanansr investigationonthethermodynamicanalysispreparationandcharacterizationoflani5hydrogenstoragealloybymagnesiothermicreductiondiffusionprocess AT berchmanslj investigationonthethermodynamicanalysispreparationandcharacterizationoflani5hydrogenstoragealloybymagnesiothermicreductiondiffusionprocess |