Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies
The impact of grinding on particle size, thermal behaviour, and sintering ability of yttrium aluminate glass microspheres with eutectic composition (76.8 mol % Al2O3 and 23.2 mol % Y2O3) was studied. The work was conducted with the aim of determining the optimal particle size and grinding conditions...
Saved in:
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-01-01
|
| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S240584402417291X |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841526189749960704 |
|---|---|
| author | Melinda Majerová Anna Prnová Jana Valúchová Monika Michálková Beáta Pecušová Michal Žitňan Róbert Klement Dušan Galusek |
| author_facet | Melinda Majerová Anna Prnová Jana Valúchová Monika Michálková Beáta Pecušová Michal Žitňan Róbert Klement Dušan Galusek |
| author_sort | Melinda Majerová |
| collection | DOAJ |
| description | The impact of grinding on particle size, thermal behaviour, and sintering ability of yttrium aluminate glass microspheres with eutectic composition (76.8 mol % Al2O3 and 23.2 mol % Y2O3) was studied. The work was conducted with the aim of determining the optimal particle size and grinding conditions of glassy powder used for hot-pressing of ceramic and glass-ceramic materials with desired mechanical properties. The flame synthesis was used for the preparation of glass microspheres (diameter ∼ 40 μm). Ball milling procedure under different conditions was applied to adjust of size of prepared microbodies. The milled powders were subsequently hot pressed. The prepared samples (raw, milled microspheres and hot-press sintered bodies were characterised by X-ray powder diffraction, and scanning electron microscopy. Thermal analysis and particle size analysis in combination with X-ray powder diffraction and high temperature X-ray diffraction was used for detailed inspection of thermal behaviour and phase changes in raw and milled systems in the temperature interval 25–1200 °C. The samples after flame synthesis and after milling were found to be X-ray amorphous. The particle size measurements showed that the systems with a smaller average size D [0.9] ∼ 25 μm and a monomodal particle size distribution were prepared after 6h of milling. Thermal analysis in combination with X-ray and high temperature X-ray analysis indicated a difference in the crystallization mechanism of the yttrium aluminate garnet phase depending on the milling time. The bulk glass ceramic with fine lamellar eutectic microstructure and interesting mechanical properties (Vickers hardness HV=17.6 ± 0.2 GPa, indentation fracture toughness KIC = 4.3 ± 0.3 MPa.m1/2) resulted from the sintering of microspheres milled for 6h under the “gentlest” conditions (milling speed - 200 rpm, and milling balls size - 5 mm in diameter). |
| format | Article |
| id | doaj-art-489b2f86e1fe4b1ca53b83fe74c527c2 |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-489b2f86e1fe4b1ca53b83fe74c527c22025-01-17T04:50:41ZengElsevierHeliyon2405-84402025-01-01111e41260Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodiesMelinda Majerová0Anna Prnová1Jana Valúchová2Monika Michálková3Beáta Pecušová4Michal Žitňan5Róbert Klement6Dušan Galusek7Institute of Measurement Science V.V.I., Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, Slovakia; Corresponding author.Centre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, Slovakia; Vitrum Laugaricio-Joint Glass Center of the IIC SAS, TnUD and FCHTP STU, Študentská 2, Trenčín, SlovakiaVitrum Laugaricio-Joint Glass Center of the IIC SAS, TnUD and FCHTP STU, Študentská 2, Trenčín, SlovakiaVitrum Laugaricio-Joint Glass Center of the IIC SAS, TnUD and FCHTP STU, Študentská 2, Trenčín, SlovakiaCentre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, SlovakiaCentre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, SlovakiaCentre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, SlovakiaCentre for functional and surface functionalized glass, Alexander Dubček University of Trenčín, Študentská 2, Trenčín, Slovakia; Vitrum Laugaricio-Joint Glass Center of the IIC SAS, TnUD and FCHTP STU, Študentská 2, Trenčín, SlovakiaThe impact of grinding on particle size, thermal behaviour, and sintering ability of yttrium aluminate glass microspheres with eutectic composition (76.8 mol % Al2O3 and 23.2 mol % Y2O3) was studied. The work was conducted with the aim of determining the optimal particle size and grinding conditions of glassy powder used for hot-pressing of ceramic and glass-ceramic materials with desired mechanical properties. The flame synthesis was used for the preparation of glass microspheres (diameter ∼ 40 μm). Ball milling procedure under different conditions was applied to adjust of size of prepared microbodies. The milled powders were subsequently hot pressed. The prepared samples (raw, milled microspheres and hot-press sintered bodies were characterised by X-ray powder diffraction, and scanning electron microscopy. Thermal analysis and particle size analysis in combination with X-ray powder diffraction and high temperature X-ray diffraction was used for detailed inspection of thermal behaviour and phase changes in raw and milled systems in the temperature interval 25–1200 °C. The samples after flame synthesis and after milling were found to be X-ray amorphous. The particle size measurements showed that the systems with a smaller average size D [0.9] ∼ 25 μm and a monomodal particle size distribution were prepared after 6h of milling. Thermal analysis in combination with X-ray and high temperature X-ray analysis indicated a difference in the crystallization mechanism of the yttrium aluminate garnet phase depending on the milling time. The bulk glass ceramic with fine lamellar eutectic microstructure and interesting mechanical properties (Vickers hardness HV=17.6 ± 0.2 GPa, indentation fracture toughness KIC = 4.3 ± 0.3 MPa.m1/2) resulted from the sintering of microspheres milled for 6h under the “gentlest” conditions (milling speed - 200 rpm, and milling balls size - 5 mm in diameter).http://www.sciencedirect.com/science/article/pii/S240584402417291XY2O3-Al2O3 glassesEutectic compositionMillingThermal properties |
| spellingShingle | Melinda Majerová Anna Prnová Jana Valúchová Monika Michálková Beáta Pecušová Michal Žitňan Róbert Klement Dušan Galusek Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies Heliyon Y2O3-Al2O3 glasses Eutectic composition Milling Thermal properties |
| title | Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies |
| title_full | Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies |
| title_fullStr | Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies |
| title_full_unstemmed | Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies |
| title_short | Hot press sintering of Y2O3-Al2O3 glasses: Impact of particle size on thermal behaviour, sintering ability and mechanical properties of sintered bodies |
| title_sort | hot press sintering of y2o3 al2o3 glasses impact of particle size on thermal behaviour sintering ability and mechanical properties of sintered bodies |
| topic | Y2O3-Al2O3 glasses Eutectic composition Milling Thermal properties |
| url | http://www.sciencedirect.com/science/article/pii/S240584402417291X |
| work_keys_str_mv | AT melindamajerova hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT annaprnova hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT janavaluchova hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT monikamichalkova hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT beatapecusova hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT michalzitnan hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT robertklement hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies AT dusangalusek hotpresssinteringofy2o3al2o3glassesimpactofparticlesizeonthermalbehavioursinteringabilityandmechanicalpropertiesofsinteredbodies |