The influence of mechanochemical activation on combustion synthesis of Si3N4
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Date
Authors
Jin, H. B.
Cao, M. S.
Chen, Y. X.
Li, J. T.
Agathopoulos, S.
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Elsevier
Abstract
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peer reviewed
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Ceramics International
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This study addresses itself in the performance Of Si3N4 combustion synthesis, occurred in the presence Of Si3N4 and NH4Cl powders in N-2 atmosphere of 6 MPa. Mechanochemical activation of Si powder, achieved via high-energy attrition milling up to 24 h, increases the intensity and the efficiency of the reactions between Si and N-2 as well as combustion temperature. Benign processing conditions, anticipated with lower mechanochemical activation of Si powder, low N-2 pressures, and low combustion temperatures, favor formation of of alpha-Si3N4. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All fights reserved.
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Keywords
microstructure final, si3n4, combustion synthesis, high-temperature-synthesis, silicon-nitride, alpha-si3n4
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<Go to ISI>://000256950300021
http://ac.els-cdn.com/S0272884207000892/1-s2.0-S0272884207000892-main.pdf?_tid=a02b7066c29bd76f23fe696fb9673e87&acdnat=1339492688_beb776b2d70ac76d45bd3bb85d008b05
http://ac.els-cdn.com/S0272884207000892/1-s2.0-S0272884207000892-main.pdf?_tid=a02b7066c29bd76f23fe696fb9673e87&acdnat=1339492688_beb776b2d70ac76d45bd3bb85d008b05
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en
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Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικών