陈明伟,邱海鹏,刘善华,谢巍杰,张冰玉,罗文东,关宏.聚合物先驱体组分对SiC/SiBCN复合材料性能的影响[J].稀有金属材料与工程,2020,49(2):706~711.[Mingwei Chen,Haipeng Qiu,Shanhua Liu,Weijie Xie,Bingyu Zhang,Wendong Luo,Hong Guan.Effect of Polymer Precursor Components on the Properties of SiC/SiBCN Composites[J].Rare Metal Materials and Engineering,2020,49(2):706~711.]
聚合物先驱体组分对SiC/SiBCN复合材料性能的影响
投稿时间:2019-03-08  修订日期:2019-07-19
中文关键词:  SiC/SiBCN复合材料,交联反应,三维网络结构
基金项目:装备预研中航工业联合(6141B05080202)
中文摘要:
      以SiC纤维为增强相,SiBCN复相陶瓷先驱体为浸渍剂,采用聚合物先驱体浸渍裂解工艺制备了SiC/SiBCN复合材料。采用SEM和力学性能测试对SiC/SiBCN复合材料氧化前后组分、形貌及力学行为进行了分析。试验表明,随着SiBCN复相陶瓷先驱体中PBN含量的增加,先驱体陶瓷产率先增加后降低,SiC/SiBCN复合材料1000℃/20h氧化后的弯曲强度保留率亦先增加后降低。这主要归因于SiBCN复相陶瓷先驱体中PBN 含量的增加有利于先驱体分子交联程度增加,更容易形成稳定的三维网络结构。此外,材料孔隙率以及SiBCN复相陶瓷的氧化行为也成为影响SiC/SiBCN复合材料氧化稳定性的重要因素。
Effect of Polymer Precursor Components on the Properties of SiC/SiBCN Composites
英文关键词:SiC/SiBCN composites, crosslinking reaction, three-dimensional network structure.
英文摘要:
      SiC/SiBCN composites were prepared by SiC fiber as the reinforcing phase and SiBCN composite ceramic precursor as the impregnating agent. The composition, morphology and mechanical behavior of SiC/SiBCN composites before and after oxidation were analyzed by SEM and mechanical properties tests. The results show that with the increase of PBN content in SiBCN composite ceramic precursors, The quality retention of precursor ceramics increases first and then decreases, and the retention of SiC/SiBCN composites under 1000 ℃ after 20h oxidation increases first and then decreases. This is mainly due to the increase of the PBN content in the SiBCN multiphase ceramic precursor, which is beneficial to the increase of the crosslinking degree of the precursor molecules, and easier to form a stable three-dimensional network structure. In addition, porosity and oxidation behavior of SiBCN multiphase ceramics also affect the oxidation stability of SiC/SiBCN composites.
作者单位E-mail
陈明伟 航空工业复合材料技术中心 mingwei070806@163.com 
邱海鹏 航空工业复合材料技术中心  
刘善华 航空工业复合材料技术中心  
谢巍杰 航空工业复合材料技术中心  
张冰玉 航空工业复合材料技术中心  
罗文东 航空工业复合材料技术中心  
关宏 航空工业复合材料技术中心  
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