Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg
The aim of this study is the investigation of a technological synthesis of MgAlON, which is a prospective coating material on ceramic foam filters for the filtration of magnesium, aluminum, and other metal melts. Thermodynamic calculations are performed, and the synthesis is carried out at 1500 °C i...
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| Format: | Article |
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MDPI AG
2022-05-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/5/654 |
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| author | Alina Schramm Martin Thümmler Olga Fabrichnaya Simon Brehm Jakob Kraus Jens Kortus David Rafaja Christiane Scharf Christos G. Aneziris |
| author_facet | Alina Schramm Martin Thümmler Olga Fabrichnaya Simon Brehm Jakob Kraus Jens Kortus David Rafaja Christiane Scharf Christos G. Aneziris |
| author_sort | Alina Schramm |
| collection | DOAJ |
| description | The aim of this study is the investigation of a technological synthesis of MgAlON, which is a prospective coating material on ceramic foam filters for the filtration of magnesium, aluminum, and other metal melts. Thermodynamic calculations are performed, and the synthesis is carried out at 1500 °C in nitrogen atmosphere using samples consisting of different fractions of Al<sub>2</sub>O<sub>3</sub>, MgO, and AlN as starting materials. The effect of the quantity of these components on the conversion degree of the educts is evaluated. Furthermore, the effect of the holding time at the synthesis temperature, as well as the composition points or regions showing the highest conversion degree, are determined. XRD analysis is performed to evaluate the phase fractions and lattice parameters of the spinel after the respective reaction, and the nitrogen content of selected samples is evaluated. Sessile drop tests using AlSi7Mg are performed at 950 °C on selected sintered samples, determining their wettability, and therefore, applicability of the material in light metal melt filtration. |
| first_indexed | 2024-03-10T03:04:56Z |
| format | Article |
| id | doaj.art-8c21d513075f4a91aaefe9763cf61767 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T03:04:56Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-8c21d513075f4a91aaefe9763cf617672023-11-23T10:35:01ZengMDPI AGCrystals2073-43522022-05-0112565410.3390/cryst12050654Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7MgAlina Schramm0Martin Thümmler1Olga Fabrichnaya2Simon Brehm3Jakob Kraus4Jens Kortus5David Rafaja6Christiane Scharf7Christos G. Aneziris8Institute for Nonferrous Metallurgy and Purest Materials, Technische Universität Bergakademie Freiberg, Leipziger Straße 34, 09599 Freiberg, GermanyInstitute of Materials Science, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Straße 5, 09599 Freiberg, GermanyInstitute of Materials Science, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Straße 5, 09599 Freiberg, GermanyInstitute of Theoretical Physics, Technische Universität Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, GermanyInstitute of Theoretical Physics, Technische Universität Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, GermanyInstitute of Theoretical Physics, Technische Universität Bergakademie Freiberg, Leipziger Straße 23, 09599 Freiberg, GermanyInstitute of Materials Science, Technische Universität Bergakademie Freiberg, Gustav-Zeuner-Straße 5, 09599 Freiberg, GermanyInstitute for Nonferrous Metallurgy and Purest Materials, Technische Universität Bergakademie Freiberg, Leipziger Straße 34, 09599 Freiberg, GermanyInstitute of Ceramics, Refractories and Composite Materials, Technische Universität Bergakademie Freiberg, Agricolastr. 17, 09599 Freiberg, GermanyThe aim of this study is the investigation of a technological synthesis of MgAlON, which is a prospective coating material on ceramic foam filters for the filtration of magnesium, aluminum, and other metal melts. Thermodynamic calculations are performed, and the synthesis is carried out at 1500 °C in nitrogen atmosphere using samples consisting of different fractions of Al<sub>2</sub>O<sub>3</sub>, MgO, and AlN as starting materials. The effect of the quantity of these components on the conversion degree of the educts is evaluated. Furthermore, the effect of the holding time at the synthesis temperature, as well as the composition points or regions showing the highest conversion degree, are determined. XRD analysis is performed to evaluate the phase fractions and lattice parameters of the spinel after the respective reaction, and the nitrogen content of selected samples is evaluated. Sessile drop tests using AlSi7Mg are performed at 950 °C on selected sintered samples, determining their wettability, and therefore, applicability of the material in light metal melt filtration.https://www.mdpi.com/2073-4352/12/5/654MgAlONreaction sinteringnitride ceramicswettabilityrefractory |
| spellingShingle | Alina Schramm Martin Thümmler Olga Fabrichnaya Simon Brehm Jakob Kraus Jens Kortus David Rafaja Christiane Scharf Christos G. Aneziris Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg Crystals MgAlON reaction sintering nitride ceramics wettability refractory |
| title | Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg |
| title_full | Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg |
| title_fullStr | Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg |
| title_full_unstemmed | Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg |
| title_short | Reaction Sintering of MgAlON at 1500 °C from Al<sub>2</sub>O<sub>3</sub>, MgO and AlN and Its Wettability by AlSi7Mg |
| title_sort | reaction sintering of mgalon at 1500 °c from al sub 2 sub o sub 3 sub mgo and aln and its wettability by alsi7mg |
| topic | MgAlON reaction sintering nitride ceramics wettability refractory |
| url | https://www.mdpi.com/2073-4352/12/5/654 |
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