eprintid: 14995
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/49/95
datestamp: 2023-11-10 03:29:35
lastmod: 2023-11-10 03:29:35
status_changed: 2023-11-10 01:58:21
type: article
metadata_visibility: show
creators_name: Shahrestani, S.
creators_name: Ismail, M.C.
creators_name: Kakooei, S.
creators_name: Beheshti, M.
title: Microstructure, phase compositions and mechanical properties of slip cast sintered SiC/Si3N4 composites
ispublished: pub
keywords: Mechanical properties; Particle size; Powders; Silica; Silicon; Silicon carbide; Sintering, Average particle size; Different particle sizes; Fine particles; Mixing ratios; Sintered SiC; Sintering temperatures; Slip casting method; Weight ratios, Nitrogen compounds
note: cited By 4
abstract: 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 SiC�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 � 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 SiC�Si3N4 composites. © 2021 Elsevier Ltd and Techna Group S.r.l.
date: 2021
publisher: Elsevier Ltd
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099826064&doi=10.1016%2fj.ceramint.2021.01.182&partnerID=40&md5=f36d405e087e4bc64f7b3d6585c865c9
id_number: 10.1016/j.ceramint.2021.01.182
full_text_status: none
publication: Ceramics International
volume: 47
number: 9
pagerange: 13173-13180
refereed: TRUE
issn: 02728842
citation:   Shahrestani, S. and Ismail, M.C. and Kakooei, S. and Beheshti, M.  (2021) Microstructure, phase compositions and mechanical properties of slip cast sintered SiC/Si3N4 composites.  Ceramics International, 47 (9).  pp. 13173-13180.  ISSN 02728842