The effect of nanoscale SiC particles on the microstructure of Al2O3 ceramics
Source abstract
Abstract
Abstract The hot-pressing temperature, matrix grain size, fracture mode and the distribution of SiC were studied to reveal the effect of SiC inclusions on the microstructure of Al 2 O 3 . Al 2 O 3 –SiC composite powder was prepared by the precipitation method. Nanoscale SiC particles were coated with Al 2 O 3 . After hot pressing, most of nanoscale SiC particles were randomly located within the Al 2 O 3 grains. SiC inclusions raised the hot-pressing temperature, decreased Al 2 O 3 grain size, and inhibited the abnormal grain growth of Al 2 O 3 . The intergranular fracture for Al 2 O 3 was transformed to the intragranular fracture for Al 2 O 3 –SiC nanocomposites because of the addition of SiC. All those microstructure changes increased the mechanical properties of Al 2 O 3 -composites by 40%.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
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