Structure evolution and ablative mechanism of C/C-ZrC-ZrxCuy composites with low porosity fabricated by pressure assisted reactive melt infiltration
Source abstract
Abstract
C/C-ZrC-Zr xCu y composites were fabricated by pressure assisted reactive melt infiltration (PARMI). The infiltrated matrix contained three different ZrC-Zr xCu y regions due to the gradient distribution of carbon and Cu during PARMI, and the dimensions of ZrC particles decreased sequentially from matrix boundary to inside. During 30 s ablation, heat-absorbing effect of Cu-phase slowed down the increasement of surface temperature. After 60 s ablation, porous ZrO 2 skeleton evolved to a protective integrated cover, including expanded large-scale infiltrator and network of curly whiskers. Thus, ablation rates of composites were reduced to − 1.7 ± 0.1 µm/s and 1.7 ± 0.1 mg/s, separately.
Source: expertdata · 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 (44)
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