Γ-Type High-Entropy Disilicates (Y0.2er0.2tm0.2yb0.2x0.2)2si2o7 (X = Dy, Gd, Ho): Phase Stability, Thermal Behavior, and CMAS Corrosion Resistance
| dc.contributor.author | Kavak S. | |
| dc.contributor.author | Yüksek A.N. | |
| dc.contributor.author | Gökçe H. | |
| dc.contributor.author | Lütfi Öveçoğlu M. | |
| dc.contributor.author | Ağaoğulları D. | |
| dc.date.accessioned | 2026-03-05T15:02:42Z | |
| dc.date.available | 2026-03-05T15:02:42Z | |
| dc.date.issued | 2026 | |
| dc.description.abstract | Three quinary high entropy disilicate (HEDS) compositions namely, (Y0.2Er0.2Tm0.2Yb0.2Dy0.2)2Si2O7, (Y0.2Er0.2Tm0.2Yb0.2Gd0.2)2Si2O7 and (Y0.2Er0.2Tm0.2Yb0.2Ho0.2)2Si2O7 were synthesized via ball milling and sintering using commercially available oxides for environmental barrier coating (EBC) applications. XRD, SEM, and EDS analyses confirmed the formation of single-phase γ-type pyrosilicates with dense and homogenous elemental distribution. Moreover, it was found that the newly developed (5RE0.2)2Si2O7 high entropy disilicate materials exhibit low thermal conductivities, high temperature phase stability and similar coefficients of thermal expansion (CTE) with SiC. CMAS corrosion resistances of HEDS samples were investigated at 1300 °C for 2, 12, and 24 h. The findings highlight the potential of high entropy engineering to enhance the high-temperature corrosion resistance, high temperature phase stability and improved thermal properties making these materials promising candidates for advanced EBC systems for gas turbine applications. © 2026 Elsevier B.V. | en_US |
| dc.identifier.doi | 10.1016/j.jallcom.2026.186932 | |
| dc.identifier.issn | 0925-8388 | |
| dc.identifier.scopus | 2-s2.0-105030880260 | |
| dc.identifier.uri | https://doi.org/10.1016/j.jallcom.2026.186932 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.11779/3235 | |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier Ltd | en_US |
| dc.relation.ispartof | Journal of Alloys and Compounds | en_US |
| dc.rights | info:eu-repo/semantics/closedAccess | en_US |
| dc.subject | CMAS | en_US |
| dc.subject | Environmental Barrier Coatings | en_US |
| dc.subject | High Entropy Disilicates | en_US |
| dc.subject | High Temperature Corrosion | en_US |
| dc.subject | Rare Earth Silicates | en_US |
| dc.subject | Thermophysical Properties | en_US |
| dc.title | Γ-Type High-Entropy Disilicates (Y0.2er0.2tm0.2yb0.2x0.2)2si2o7 (X = Dy, Gd, Ho): Phase Stability, Thermal Behavior, and CMAS Corrosion Resistance | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication | |
| gdc.author.scopusid | 57363741700 | |
| gdc.author.scopusid | 59154266100 | |
| gdc.author.scopusid | 6701327427 | |
| gdc.author.scopusid | 57210553678 | |
| gdc.author.scopusid | 34879442800 | |
| gdc.collaboration.industrial | true | |
| gdc.description.department | Mef University | en_US |
| gdc.description.departmenttemp | [Kavak S.] Istanbul Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials Engineering, Particulate Materials Laboratories (PML), Graphene & 2D Materials Laboratory, Maslak, Istanbul, 34469, Turkey, Aselsan Inc. Defense Systems Technologies Business Sector, Ankara, 06200, Turkey; [Yüksek A.N.] Istanbul Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials Engineering, Particulate Materials Laboratories (PML), Graphene & 2D Materials Laboratory, Maslak, Istanbul, 34469, Turkey; [Gökçe H.] Istanbul Technical University, Prof. Dr. Adnan Tekin Materials Science and Production Technologies Applied Research Center (ATARC), Maslak, Istanbul, 34469, Turkey; [Lütfi Öveçoğlu M.] Istanbul Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials Engineering, Particulate Materials Laboratories (PML), Graphene & 2D Materials Laboratory, Maslak, Istanbul, 34469, Turkey, MEF University, Department of Mechanical Engineering, Sarıyer, Istanbul, 34396, Turkey; [Ağaoğulları D.] Istanbul Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials Engineering, Particulate Materials Laboratories (PML), Graphene & 2D Materials Laboratory, Maslak, Istanbul, 34469, Turkey | en_US |
| gdc.description.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| gdc.description.scopusquality | N/A | |
| gdc.description.volume | 1057 | en_US |
| gdc.description.wosquality | Q1 | |
| gdc.identifier.openalex | W7130331081 | |
| gdc.index.type | Scopus | |
| gdc.openalex.collaboration | National | |
| gdc.openalex.fwci | 0.0 | |
| gdc.openalex.normalizedpercentile | 0.7 | |
| gdc.opencitations.count | 0 | |
| gdc.plumx.scopuscites | 0 | |
| gdc.scopus.citedcount | 0 | |
| relation.isOrgUnitOfPublication | a6e60d5c-b0c7-474a-b49b-284dc710c078 | |
| relation.isOrgUnitOfPublication.latestForDiscovery | a6e60d5c-b0c7-474a-b49b-284dc710c078 |