Surface Crack-Healing of Al_2O_3 Ceramic-Matrix Composites
Source abstract
Abstract
The effects of different-temperature-heat treatment on crack healing and strength of TiCp/Al2O3 and SiCw-Al2O3 composites were studied systematically. The results show that when the samples are heat-treated at 1000~1400℃, crack healing will happen and the strength will be improved largely. The diffusion and the chemical reactions are the main mechanism. The microstructure and thermal physical properties of the surface reactional layer determine the range of strength improvement. Stress relaxation is benificial for strength, but the oxidation-induced bubbles weaken the specimens.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Advanced materials and composites · Aluminum Alloys Composites Properties
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