TY  - JOUR
PB  - Elsevier Ltd
SN  - 02728842
EP  - 13180
AV  - none
N1  - cited By 4
SP  - 13173
TI  - Microstructure, phase compositions and mechanical properties of slip cast sintered SiC/Si3N4 composites
Y1  - 2021///
JF  - Ceramics International
A1  - Shahrestani, S.
A1  - Ismail, M.C.
A1  - Kakooei, S.
A1  - Beheshti, M.
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099826064&doi=10.1016%2fj.ceramint.2021.01.182&partnerID=40&md5=f36d405e087e4bc64f7b3d6585c865c9
VL  - 47
N2  - In this study, a slurry containing a mixture of Si and SiC powders was used to fabricate the SiC/Si3N4 composites by slip casting method and sintering in a nitrogen-controlled furnace. The effects of mixing ratios of Si and SiC powders, different particle sizes of SiC powders as well as three sintering temperatures (1400, 1450, 1490 °C) were evaluated for SiCâ??Si3N4 composites. The results demonstrated that the best slurry was prepared using the weight ratio of Si/SiC of 30/70 and the fine-particle size of SiC powders with an average particle size of d50 â?¤ 0.45 μm. The results of XRD and FESEM determined that the sintered composites at 1450 °C have the minimum porosity without the SiO2 phase. Besides, with an increase in the sintering temperature, the α/β-Si3N4 phase ratio increased while the hardness and flexural strength were strongly dependent on the α/β-Si3N4 phase ratio in the SiCâ??Si3N4 composites. © 2021 Elsevier Ltd and Techna Group S.r.l.
IS  - 9
ID  - scholars14995
KW  - Mechanical properties; Particle size; Powders; Silica; Silicon; Silicon carbide; Sintering
KW  -  Average particle size; Different particle sizes; Fine particles; Mixing ratios; Sintered SiC; Sintering temperatures; Slip casting method; Weight ratios
KW  -  Nitrogen compounds
ER  -