Effect of Temperature on the Synthesis of ZrO2-Mullite Powders in Molten Sodium Sulfate
| Autor: | Bo Quan Zhu, Hou Zhi Wang, Xue Dong Li |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Materials science Mechanical Engineering Inorganic chemistry chemistry.chemical_element Salt (chemistry) Mullite chemistry.chemical_compound Tetragonal crystal system chemistry Mechanics of Materials Aluminium Sodium sulfate General Materials Science Molten salt Sulfate Sodium carbonate Nuclear chemistry |
| Zdroj: | Key Engineering Materials. :765-767 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.368-372.765 |
| Popis: | ZrO2-mullite compound powders were synthesized with zircon and aluminum sulfate in molten sodium sulfate. Na2ZrSiO5 was prepared as intermediate with zircon and sodium carbonate at 900°C for 3h. Then the mixture of resultant Na2ZrSiO5 and aluminum sulfate was heated at different temperatures in molten sodium sulfate salt. The ZrO2-Al2O3-SiO2 compound powders were obtained after washing away the solvable salts. The results showed that the compound powders synthesized at 800°C were tetragonal ZrO2, SiO2 and Al2O3; the powders synthesized at 1000°C were monoclinal ZrO2 and mullite. The mullite in compound powders became to decompose when the reaction temperature increased over 1100°C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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