Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator
Due to their excellent high-temperature properties and corrosion resistance, AZS materials are widely used in glas making. Two industrially available fused cast AZS materials were chosen for this study. One composition was close to the ternary eutectic of zirconia, mullite, and corundum. The other m...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-09-01
|
| Series: | Open Ceramics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666539523000950 |
| _version_ | 1797736183496704000 |
|---|---|
| author | Jonas Niessen D. Muehmer T. Tonnesen R. Telle J. Gonzalez-Julian |
| author_facet | Jonas Niessen D. Muehmer T. Tonnesen R. Telle J. Gonzalez-Julian |
| author_sort | Jonas Niessen |
| collection | DOAJ |
| description | Due to their excellent high-temperature properties and corrosion resistance, AZS materials are widely used in glas making. Two industrially available fused cast AZS materials were chosen for this study. One composition was close to the ternary eutectic of zirconia, mullite, and corundum. The other material was close to mullite composition with approx ten wt% ZrO2. The microstructure and phase composition of the received material was analyzed. Additionally, the materials were remelted in an aero acoustic levitator. The fused cast grains and the remelted samples showed significant differences in the microstructure and phase composition. Due to the high cooling rates and homogeneous nucleation under containerless conditions, both materials tended to form a glassy phase. Cooling samples with a pre-existent nucleus or controlled conditions yielded a fine-grained crystalline microstructure. For conventional cooling, the silica and alumina-rich material exhibited large corundum precipitates. In contrast, the containerless processed sample showed primary precipitation of mullite. |
| first_indexed | 2024-03-12T13:09:57Z |
| format | Article |
| id | doaj.art-13e4993d8eda405686970812986b70ba |
| institution | Directory Open Access Journal |
| issn | 2666-5395 |
| language | English |
| last_indexed | 2024-03-12T13:09:57Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Open Ceramics |
| spelling | doaj.art-13e4993d8eda405686970812986b70ba2023-08-28T04:23:24ZengElsevierOpen Ceramics2666-53952023-09-0115100423Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitatorJonas Niessen0D. Muehmer1T. Tonnesen2R. Telle3J. Gonzalez-Julian4Corresponding author.; Institute of Mineral Engineering, Chair of Ceramics, RWTH Aachen University, Aachen, GermanyInstitute of Mineral Engineering, Chair of Ceramics, RWTH Aachen University, Aachen, GermanyInstitute of Mineral Engineering, Chair of Ceramics, RWTH Aachen University, Aachen, GermanyInstitute of Mineral Engineering, Chair of Ceramics, RWTH Aachen University, Aachen, GermanyInstitute of Mineral Engineering, Chair of Ceramics, RWTH Aachen University, Aachen, GermanyDue to their excellent high-temperature properties and corrosion resistance, AZS materials are widely used in glas making. Two industrially available fused cast AZS materials were chosen for this study. One composition was close to the ternary eutectic of zirconia, mullite, and corundum. The other material was close to mullite composition with approx ten wt% ZrO2. The microstructure and phase composition of the received material was analyzed. Additionally, the materials were remelted in an aero acoustic levitator. The fused cast grains and the remelted samples showed significant differences in the microstructure and phase composition. Due to the high cooling rates and homogeneous nucleation under containerless conditions, both materials tended to form a glassy phase. Cooling samples with a pre-existent nucleus or controlled conditions yielded a fine-grained crystalline microstructure. For conventional cooling, the silica and alumina-rich material exhibited large corundum precipitates. In contrast, the containerless processed sample showed primary precipitation of mullite.http://www.sciencedirect.com/science/article/pii/S2666539523000950Aero acoustic levitationAZSSolidification |
| spellingShingle | Jonas Niessen D. Muehmer T. Tonnesen R. Telle J. Gonzalez-Julian Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator Open Ceramics Aero acoustic levitation AZS Solidification |
| title | Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator |
| title_full | Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator |
| title_fullStr | Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator |
| title_full_unstemmed | Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator |
| title_short | Solidification of two fused cast Al2O3–ZrO2–SiO2 materials in an aero acoustic levitator |
| title_sort | solidification of two fused cast al2o3 zro2 sio2 materials in an aero acoustic levitator |
| topic | Aero acoustic levitation AZS Solidification |
| url | http://www.sciencedirect.com/science/article/pii/S2666539523000950 |
| work_keys_str_mv | AT jonasniessen solidificationoftwofusedcastal2o3zro2sio2materialsinanaeroacousticlevitator AT dmuehmer solidificationoftwofusedcastal2o3zro2sio2materialsinanaeroacousticlevitator AT ttonnesen solidificationoftwofusedcastal2o3zro2sio2materialsinanaeroacousticlevitator AT rtelle solidificationoftwofusedcastal2o3zro2sio2materialsinanaeroacousticlevitator AT jgonzalezjulian solidificationoftwofusedcastal2o3zro2sio2materialsinanaeroacousticlevitator |