文献类型：期刊文献

英文题名：Lightweight and multiscale ZrO2-SiOC coated carbon/phenolic composites with enhanced oxidation and ablation resistance

作者：Gao, Wei[1];Zhang, Yongzheng[1];Wang, Yanli[1];Zhan, Liang[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Green Chem Engn & Ind Catalysis, State Key Lab Chem Engn, Minist Educ,Shanghai Key Lab Multiphase Mat Chem E, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2024

卷号：50

期号：23

起止页码：51077

外文期刊名：CERAMICS INTERNATIONAL

收录：;EI(收录号：20244217187064);WOS:【SCI-EXPANDED(收录号:WOS:001360630600001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (No.,22075081 52372045 and U1710252) , the Fundamental Research Funds for the Central Universities (JKD01231701) , China Postdoctoral Science Foundation (No. 2023M731084) .

语种：英文

外文关键词：Composites; Multiscale structure; Antioxidation; Ablation

摘要：The carbon/phenolic composites are extensively considered as an efficient ablative thermal protection material, but inferior oxidation-ablation resistance has limited their further application. In this work, a multiscale ZrO2- SiOC coated carbon/phenolic composite (NCF/ZSAx-PA) was fabricated through a dual-stage construction strategy. The as-prepared composites exhibited a low density (0.314-0.348 g/cm3), low thermal conductivity (0.0605-0.0725 W/(m & sdot;k)) and promoted compressive strength (2.95/5.08 MPa in the Z/XY direction). Benefiting from the formation of a protective ZrO2-SiO2 ceramic coating, the multiscale composites showed excellent anti- oxidation and ablation performance. The residual weight of NCF/ZSAx-PA was 19.41 % at 1000 degrees C while the unmodified carbon/phenolic composites were entirely burnt off under an air atmosphere. Besides, the NCF/ ZSAx-PA exhibited low back temperature (53.6 degrees C), low linear ablation rate (0.0519 mm/s), and low mass loss rate (0.0100 g/s) under the 3.62 MW/m2 oxyacetylene assessment. All the superior properties enabled the NCF/ZSAx-PA a prospective application on the thermal protection system.