Paper Title:
Effect of Temperature on the Synthesis of ZrO2-Mullite Powders in Molten Sodium Sulfate
  Abstract

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.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
765-767
DOI
10.4028/www.scientific.net/KEM.368-372.765
Citation
B. Q. Zhu, X. D. Li, H. Z. Wang, "Effect of Temperature on the Synthesis of ZrO2-Mullite Powders in Molten Sodium Sulfate", Key Engineering Materials, Vols. 368-372, pp. 765-767, 2008
Online since
February 2008
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$32.00
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