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Comparison of ablative behaviour for ZrC and ZrC–Cu doped carbon/carbon composites in oxyacetylene torch environment

Abstract Carbon/carbon (C/C) composites were doped by Zr and Zr2Cu respectively. The microstructures and ablation properties of two kinds of doped C/C composites were compared. The results indicate that the sweat cooling effect of Cu phase can improve the antiablation properties of the C/C–ZrC composites when Zr2Cu was used as the infiltrator.