Improved Oxidation Resistance of SiС-Based Ceramic Matrix Composites by In Situ Reaction with Si3N4 Filler
2012 ◽
Vol 512-515
◽
pp. 775-778
Keyword(s):
SiC-Si3N4 powders and modified SiC-based ceramic matrix composites (CMCs) were fabricated using polycarbosilane (PCS), divinylbenzene (DVB) and Si3N4 filler. Si3N4 was introduced into CMCs fabricated through polymer infiltration and pyrolysis (PIP) to lower down the carbon content by in-situ carbothermal reaction, which derived from pyrolyzed PCS-DVB. The oxidation resistance and three point bending strength of modified C/SiC composites were effectively enhanced. The phase composition, microstructure of SiC-Si3N4 powders and modified C/SiC composites were investigated by XRD, SEM and TEM.
2012 ◽
Vol 512-515
◽
pp. 681-684
◽
Keyword(s):
2008 ◽
Vol 368-372
◽
pp. 1050-1052
◽
2002 ◽
Vol 62
(3)
◽
pp. 385-393
◽
2002 ◽
Vol 75
(1-3)
◽
pp. 284-290
◽
Keyword(s):