Publication
Thermal decomposition of δ-MoN and ε-Fe2N synthesized under concentrated solar radiation in NH3 gas stream
| dc.contributor.author | Cañadas, Inmaculada | |
| dc.contributor.author | Oliveira, Fernando Almeida Costa | |
| dc.contributor.author | Rodriguez, Jose | |
| dc.contributor.author | Shohoji, Nobumitsu | |
| dc.date.accessioned | 2023-04-11T15:54:41Z | |
| dc.date.available | 2023-04-11T15:54:41Z | |
| dc.date.issued | 2023-01 | |
| dc.description.abstract | ABSTRACT: Decomposition temperatures of δ-MoN and ε-Fe2N synthesized with flowing NH3 gas under concentrated solar radiation heating were evaluated by Differential Scanning Calorimetry (DSC) in Argon (Ar) gas environment. The measured decomposition temperature of δ-MoN and ε-Fe2N were dependent on the solar synthesis conditions, particularly either NH3 or N2 gas flow rate at temperature. Sample containing δ-MoN showed two exothermic peaks around 680 and 900 ◦C, attributed to the reactions of δ-phase into γ-single-phase and (γ+β)-two-phase Mo2N, respectively, attributed to the dissociation reaction of δ-phase into γ-single phase and the dissociation reaction of γ-phase into metallic M saturated with N, respectively. Decomposition of ε-Fe2N took place into γ’-Fe4N in two steps occurring at 606 and 660 ◦C, respectively. When N2 instead of ammonia (NH3) gas was used, complete dissociation of γ’-Fe4N into Fe took place at around 610 ◦C. Full decomposition of γ’-Fe4N into metallic α-Fe(N) was corroborated by X-ray diffraction (XRD) analysis. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.citation | Canadas, Inmaculada... [et.al.] - Thermal decomposition of δ-MoN and ε-Fe2N synthesized under concentrated solar radiation in NH3 gas stream. In: Thermochimica Acta, 2023, vol. 719, article nº 179394 | pt_PT |
| dc.identifier.doi | 10.1016/j.tca.2022.179394 | pt_PT |
| dc.identifier.eissn | 1872-762X | |
| dc.identifier.issn | 0040-6031 | |
| dc.identifier.uri | http://hdl.handle.net/10400.9/4042 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.publisher | Elsevier | pt_PT |
| dc.relation | National Research Infrastructure for Concentrated Solar Energy | pt_PT |
| dc.relation | Solar Facilities for the European Research Area - Third Phase | |
| dc.relation.publisherversion | https://doi.org/10.1016/j.tca.2022.179394 | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Materials | pt_PT |
| dc.subject | Nitride | pt_PT |
| dc.subject | Thermochemical processes | pt_PT |
| dc.subject | Calorimetry | pt_PT |
| dc.subject | X-ray diffraction | pt_PT |
| dc.title | Thermal decomposition of δ-MoN and ε-Fe2N synthesized under concentrated solar radiation in NH3 gas stream | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Solar Facilities for the European Research Area - Third Phase | |
| oaire.awardURI | info:eu-repo/grantAgreement/EC/H2020/823802/EU | |
| oaire.citation.title | Thermochimica Acta | pt_PT |
| oaire.citation.volume | 719 | pt_PT |
| oaire.fundingStream | H2020 | |
| person.familyName | Cañadas | |
| person.familyName | Oliveira | |
| person.familyName | Rodriguez | |
| person.familyName | SHOHOJI | |
| person.givenName | Inmaculada | |
| person.givenName | Fernando | |
| person.givenName | Jose | |
| person.givenName | Nobumitsu | |
| person.identifier | 647144 | |
| person.identifier.ciencia-id | 561B-597F-9D55 | |
| person.identifier.orcid | 0000-0001-8637-1547 | |
| person.identifier.orcid | 0000-0002-1503-0152 | |
| person.identifier.orcid | 0000-0001-7153-7743 | |
| person.identifier.orcid | 0000-0002-9499-7280 | |
| person.identifier.rid | A-2312-2011 | |
| person.identifier.rid | A-5751-2012 | |
| person.identifier.scopus-author-id | 24278417800 | |
| person.identifier.scopus-author-id | 23019925500 | |
| person.identifier.scopus-author-id | 35592804100 | |
| project.funder.identifier | http://doi.org/10.13039/501100008530 | |
| project.funder.name | European Commission | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |
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