A novel Hf Si O wire drawing phenomenon after ablation of SiCnws/HfC SiC coating on C/C composites
Source abstract
Abstract
A SiCnws/HfCSiC coating was fabricated by a two-step chemical vapor deposition. After introducing SiC nanowires, the fracture toughness of HfCSiC coating increases by 228%. After ablation under oxyacetylene torch for 60s, a bone-like HfO2 reticular structure was formed in the central ablation area. Interestingly, a novel HfSiO wire-drawing phenomenon was happened in the transition area of ablated SiCnws/HfCSiC coating, providing a new toughness mechanism under ablation environment. Moreover, HfO2 precipitated from HfSiO glass wires to generate nanocrystalline grains during ablation, which explains the formation of bone-like HfO2 reticular structure observed from central ablation area.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Metal and Thin Film Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (26)
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