Article ID Journal Published Year Pages File Type
8015737 Materials Letters 2018 14 Pages PDF
Abstract
Porous Al2O3 ceramics with different SiC contents were successfully prepared through preceramic polymer process following by sintering at 1500 °C at N2 atmosphere, where ball-shape Al2O3 powders and preceramic polymer silicone resin were used as the matrix and the binder. According to the SEM, XRD and elemental analysis, it was found that C-nanowires were formed in the gap between grains in sintered samples, which was formed by the organic-inorganic transformation of silicone resin at N2 atmosphere. The existence of SiC was beneficial for the formation of C-nanowires. With the increase of SiC content in the samples, the porosity had no evidently change, however, the bending strength increased from 23 MPa to 50 MPa.
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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