Abrasive wear behavior of SiCp–Sialon composite refractories.

The abrasive wear tests were performed on the prepared SiC p –Sialon composite refractories with quartz particles as abrasives. The study aims to explore the effects of load and wear time on wear loss of SiC p –Sialon composite refractories as well as the mechanism of material removal. SiC p –Sialon composite refractories prepared by nitriding reaction sintering consisted of α-SiC, β-Si 3 N 4 , and Si 4 Al 2 O 2 N 6 . The wear loss of SiC p –Sialon composite refractories increased significantly with the increases in test load and test time. The primary wear mechanism of SiC p –Sialon composite refractories is micro-cutting. The mechanism of material removal mainly involves the matrix. The micro-cutting occurred firstly in the matrix and caused the loss of the matrix. Without the protection from the surrounding matrix, the SiC aggregates were eventually stripped. [ABSTRACT FROM AUTHOR]