Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems
Al2O3 alumina deposits were deposited on Ti6A4V titanium alloy substrates by rf-PVD at different substrate polarizations 0V, -50V, -100V and without polarization (wp). SEM images, at the surface of the deposits, showed a very good substrate coverage with a dense morphology. Quantitative EDS analysis...
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Renewable Energy Development Center (CDER)
2025-02-01
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| Series: | Revue des Énergies Renouvelables |
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| Online Access: | https://revue.cder.dz/index.php/rer/article/view/1345 |
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| author | Djamel Amari Khaoula Rahmouni Nadia Saoula Hafit Khireddine Youcef Khelfaoui |
| author_facet | Djamel Amari Khaoula Rahmouni Nadia Saoula Hafit Khireddine Youcef Khelfaoui |
| author_sort | Djamel Amari |
| collection | DOAJ |
| description | Al2O3 alumina deposits were deposited on Ti6A4V titanium alloy substrates by rf-PVD at different substrate polarizations 0V, -50V, -100V and without polarization (wp). SEM images, at the surface of the deposits, showed a very good substrate coverage with a dense morphology. Quantitative EDS analysis of these deposits revealed the presence of the elements Al and O in these deposits. The mass percentage of these elements, at different polarizations of the substrate, varies between 51.72% and 56.19% for Al and between 43.80% and 48.27% for O. The images, revealed by AFM, showed well-spread deposits on the surface of the substrates with relatively uniform grooves. The values of the arithmetic roughness Ra, ranging from 3.45 to 4.75 nm, testify to the low crystallinity of these deposits and an appreciable density. The DRX of these deposits in mode showed a weak crystallization of the Al2O3 phase and characteristic peaks of the partially crystallized phases Al0.3Ti1.7, and Ti0.7V0.3, resulting from the interaction of the elements of the Ti6A4V substrate and those of the Al2O3 deposit. |
| format | Article |
| id | doaj-art-4c2738adb0754d70864b967ed00cabfe |
| institution | Kabale University |
| issn | 1112-2242 2716-8247 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Renewable Energy Development Center (CDER) |
| record_format | Article |
| series | Revue des Énergies Renouvelables |
| spelling | doaj-art-4c2738adb0754d70864b967ed00cabfe2025-08-20T03:28:58ZengRenewable Energy Development Center (CDER)Revue des Énergies Renouvelables1112-22422716-82472025-02-0131510.54966/jreen.v28i1.13451345Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systemsDjamel Amari0Khaoula Rahmouni1Nadia Saoula2Hafit Khireddine3Youcef Khelfaoui4Laboratoire de génie de l’environnement (LGE), Université de Bejaia, route de Targa Ouzamour, Bejaia, Algérielaboratoire des matériaux et composantes actives (LMCA), Institut des sciences et technologies appliquées (ISTA), Université de Oum El Bouaghi, 04000, AlgérieCentre de Développement des Technologies Avancées (CDTA), Cité, 20 Août 1956, Baba Hassen, Alger, AlgérieLaboratoire de génie de l’environnement (LGE), Université de Bejaia, route de Targa Ouzamour, Bejaia, AlgérieLaboratoire de mécanique, matériaux et énergétique (L2ME), Université de Bejaia, route de Targa Ouzamour, Bejaia, AlgérieAl2O3 alumina deposits were deposited on Ti6A4V titanium alloy substrates by rf-PVD at different substrate polarizations 0V, -50V, -100V and without polarization (wp). SEM images, at the surface of the deposits, showed a very good substrate coverage with a dense morphology. Quantitative EDS analysis of these deposits revealed the presence of the elements Al and O in these deposits. The mass percentage of these elements, at different polarizations of the substrate, varies between 51.72% and 56.19% for Al and between 43.80% and 48.27% for O. The images, revealed by AFM, showed well-spread deposits on the surface of the substrates with relatively uniform grooves. The values of the arithmetic roughness Ra, ranging from 3.45 to 4.75 nm, testify to the low crystallinity of these deposits and an appreciable density. The DRX of these deposits in mode showed a weak crystallization of the Al2O3 phase and characteristic peaks of the partially crystallized phases Al0.3Ti1.7, and Ti0.7V0.3, resulting from the interaction of the elements of the Ti6A4V substrate and those of the Al2O3 deposit.https://revue.cder.dz/index.php/rer/article/view/1345al2o3ti6a4vdepositsrugositécristallisationpolarisation |
| spellingShingle | Djamel Amari Khaoula Rahmouni Nadia Saoula Hafit Khireddine Youcef Khelfaoui Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems Revue des Énergies Renouvelables al2o3 ti6a4v deposits rugosité cristallisation polarisation |
| title | Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems |
| title_full | Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems |
| title_fullStr | Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems |
| title_full_unstemmed | Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems |
| title_short | Physico-chemical characterization of Al2O3/Ti6A4V type thermal barrier systems |
| title_sort | physico chemical characterization of al2o3 ti6a4v type thermal barrier systems |
| topic | al2o3 ti6a4v deposits rugosité cristallisation polarisation |
| url | https://revue.cder.dz/index.php/rer/article/view/1345 |
| work_keys_str_mv | AT djamelamari physicochemicalcharacterizationofal2o3ti6a4vtypethermalbarriersystems AT khaoularahmouni physicochemicalcharacterizationofal2o3ti6a4vtypethermalbarriersystems AT nadiasaoula physicochemicalcharacterizationofal2o3ti6a4vtypethermalbarriersystems AT hafitkhireddine physicochemicalcharacterizationofal2o3ti6a4vtypethermalbarriersystems AT youcefkhelfaoui physicochemicalcharacterizationofal2o3ti6a4vtypethermalbarriersystems |