Anti-ablation performance of La2O3-modified ZrB2 coating on SiC-coated carbon/carbon composites

La2O3-modified ZrB2 coating was prepared on SiC-coated C/C composites by supersonic atmospheric plasma spraying (SAPS) with the aim of improving the anti-ablation performance of C/C composites. The effect of La2O3 contents on the anti-ablation performance were investigated. The results indicated that the 10 vol % La2O3–ZrB2 coating shows excellent anti-ablation performance. After ablation for 120 s under low heat flux oxyacetylene flame (2400...