Effect of solid loading on properties of reaction bonded silicon carbide ceramics by gelcasting
作者： Zhiyong Yuan , Yumin Zhang , Yufeng Zhou , Shanliang Dong
DOI: 10.1039/C4RA05817H
关键词: Flexural strength 、 Furfuryl alcohol 、 Composite material 、 Fracture toughness 、 Polymerization 、 Reaction bonded silicon carbide 、 Materials science 、 Toughness 、 Shrinkage 、 Ceramic
摘要: Reaction bonded silicon carbide (SIC) ceramics were successfully fabricated by gelcasting using a new non-aqueous, low-toxicity gel system based on the polymerization of phenol-formaldehyde resin and furfuryl alcohol. The effect solid loading rheological properties slurries, green bodies sintered ceramics, have been systematically investigated. suspension able to meet requirements casting process is as high 70 wt%. drying shrinkage strength SiC/polymer network decrease with ranging from 55 wt% because reduction pre-mixed solutions. On other hand fracture toughness bending increase in loading. highest values observed at 378 ± 16 MPa 4.22 0.13 MPam1/2, respectively, for composites produced
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