Effect of processing parameters on microstructure and ablation behavior of SiC/ZrB 2 coating for graphite
Source abstract
Abstract
Abstract In this research, a SiC/ZrB 2 coating was produced on graphite by reactive melt infiltration and plasma spraying method. The coating characterization was performed using XRD analysis, electron microscopy equipped with energy dispersive spectrometer (EDS), and supersonic flame ablation test at 2073 K. The results indicated that the dense C/SiC coating with good ablation resistance can be obtained at 1873 K. The coating thickness decreased with increasing infiltration temperature. The results of ablation test showed that by increasing the infiltration temperature and holding time, weight loss and mass ablation rate decreased from 22.63% to 9.83% and 3.63 × 10 −3 g cm −2 s −1 to 1.34 × 10 −3 g cm −2 s −1 , respectively. The results showed that by using the ZrB 2 as outer coating the ablation resistance improved remarkably. The weight loss and mass ablation rates for the SiC/ZrB 2 coating were 12.79% and 1.857 × 10 −3 g cm −2 s −1 , respectively.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Diamond and Carbon-based Materials Research · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Faculty of Materials and Manufacturing Process Malek Ashtar University of Technology Tehran Iran
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