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:
Xerogel was prepared by the sol-gel method using ethyl ester orthosilicate, alcohol, carbamideand glucose with various contents as raw materials. The precursor powders were obtained after xerogelwas solvothermally treated at 220oC for 2.5 h. IR analyses showed that the Si-O-Si and Si-O-NH2 bondare obtained in the precursors. XRD analyses indicated that the powders prepared by the solvothermalmethod are amorphous. Si3N4 powders are produced by heat-treating the precursors at 1400 oC in N2. Itwas proved that the synthesized powders are α–Si3N4 whiskers. With the increase of the glucose contentsand the heat-treating temperature, the crystallization of Si3N4 is obviously improved
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.868.pdf
Permalink