ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Mullite powder was prepared through reaction of aluminum sulfate and silica in molten sodiumsulfate media. The phase composition and microstructure of mullite powder were investigated. Theresults showed that high purity mullite is prepared by this method. The mullite powder exhibitsneedle-like whisker crystal with 50~100 nm in diameter and 3~8 #m in length. It is found that by thismethod mullite starts to form at 900oC, the quartz phase is disappeared about 1000oC, and mullite begin todecompose when the temperature is over 1100oC. Thus, the reasonable synthesizing temperature is about1000oC. This synthetic method is characterized by process simplicity, the temperature of mulliteformation is lower than 200-400oC compared with other conventional methods
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.924.pdf
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