TY - JOUR
T1 - The influence of mechanochemical activation on combustion synthesis of Si3N4
AU - Jin, Hai Bo
AU - Cao, Mao Sheng
AU - Chen, Yi Xiang
AU - Li, Jiang Tao
AU - Agathopoulos, Simeon
PY - 2008/7
Y1 - 2008/7
N2 - This study addresses itself in the performance of Si3N4 combustion synthesis, occurred in the presence of Si3N4 and NH4Cl powders in N2 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 N2 as well as combustion temperature. Benign processing conditions, anticipated with lower mechanochemical activation of Si powder, low N2 pressures, and low combustion temperatures, favor formation of α-Si3N4.
AB - This study addresses itself in the performance of Si3N4 combustion synthesis, occurred in the presence of Si3N4 and NH4Cl powders in N2 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 N2 as well as combustion temperature. Benign processing conditions, anticipated with lower mechanochemical activation of Si powder, low N2 pressures, and low combustion temperatures, favor formation of α-Si3N4.
KW - B. Microstructure final
KW - Combustion synthesis
KW - D. SiN
UR - http://www.scopus.com/inward/record.url?scp=43449113863&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2007.03.020
DO - 10.1016/j.ceramint.2007.03.020
M3 - Article
AN - SCOPUS:43449113863
SN - 0272-8842
VL - 34
SP - 1267
EP - 1271
JO - Ceramics International
JF - Ceramics International
IS - 5
ER -