聚合物先驱体陶瓷法(PDC)由于拥有众多优点已成为制备高性能陶瓷的重要方法。聚碳硅烷(PCS)作为SiC基陶瓷的聚合物先驱体方面的研究已引起广泛关注。其中，一种超支化聚碳硅烷(HBPCS)由于其超支化结构，低粘度，可溶，较多的活性官能团等优点，适用于PDC法制备SiC基陶瓷复合材料而备受青睐。目前，在SiC基陶瓷中引入异质元素从而赋予陶瓷优异的电磁性能，成为高性能陶瓷研究的热点。 本论文以HBPCS为原料，合成了含钛、锆、铁的杂化先驱体，经交联裂解得到了含钛、锆、铁的SiC基复合陶瓷。采用傅立叶红外光谱(FTIR)、核磁共振谱(NMR)、凝胶渗透色谱(GPC)等测试方法分析先驱体的化学结构、...The polymer derived ceramic (PDC) route has been considered as one of the most popular methods to prepare silicon carbide (SiC) based ceramic composites for its advantages. Polycarbosilanes (PCSs) have been of particular interest as precursors to SiC. Of all the PCSs, a hyperbranched polycarbosilanes (HBPCS) maybe regarded as excellent precursors for SiC ceramic matrix sources because of their uni...学位：理学硕士院系专业：材料学院材料科学与工程系_高分子化学与物理学号：2072008115057
