ISSN:
1662-8985
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:
Silicon nitride was prepared by means of low-pressure preheating combustion synthesis inthis paper. When N2 pressure is less than or equal to 2MPa, the lowest preheating temperature is about653K, reactant could make silicon nitride by combustion synthesis. The additive of ammoniumfluoride and ammonium chloride, as the reactive diluent, and Si react and make some usefulintermediate products to α -Si3N4 after thermal decomposition. The reactive diluent content must beappropriate. At the same time, with the improvement of Si3N4, as the inert diluent, content in reactant,the adiabatic flame temperature of system would reduce, and combustion reaction rate of Si alsodrops, so it is propitious to make high level of α -Si3N4
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.441.pdf
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