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首页> 外文期刊>Journal of the Ceramic Society of Japan >Polymer-derived ceramics route toward SiCN and SiBCN fibers: from chemistry of polycarbosilazanes to the design and characterization of ceramic fibers
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Polymer-derived ceramics route toward SiCN and SiBCN fibers: from chemistry of polycarbosilazanes to the design and characterization of ceramic fibers

机译：聚合物衍生的陶瓷向SiCN和SiBCN纤维发展的途径：从聚碳硅氮烷的化学到陶瓷纤维的设计和表征

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摘要

High-temperature ceramic materials gain a continuous growing interest due to the various properties they can offer. Among all their specific features, their outstanding thermal and mechanical stability attract much attention to save energy. In the category of ceramics, silicon-based non-oxide compositions display a great potential for many applications involving high temperatures, high stresses or harsh environments. Since the major binary silicon carbide and silicon nitride, which are currently used as high-performance ceramics, were discovered, the role of chemistry in the design of materials has become major. Its potential lies in the exploitation of new chemical systems and the development of new preparative routes. As a consequence, new ceramic properties can be envisioned. The polymer derived ceramic (PDC) route is a “ceramic through chemistry” concept which allows synthesizing new materials in terms of compositions and shapes difficult to tailor using more conventional approaches. This review highlights the works made in the last decades concerning the preparation of PDC fibers with a particular focus on amorphous SiCN and SiBCN networks using melt-spinning and electrospinning processes of preceramic polymers. One main emphasis of this review is set on addressing the intimate relationship between molecular structure/architecture of preceramic polymers, their spinning/curing/pyrolysis behavior and the properties of the final fibers.
机译：高温陶瓷材料因其可提供的各种特性而引起了人们的持续关注。在其所有特定功能中，其出色的热稳定性和机械稳定性引起了人们的广泛关注，以节省能源。在陶瓷类别中，硅基非氧化物组合物在涉及高温，高应力或恶劣环境的许多应用中显示出巨大的潜力。自从发现主要用作高性能陶瓷的二元碳化硅和氮化硅以来，化学在材料设计中的作用就变得很重要。它的潜力在于开发新的化学系统和开发新的制备路线。结果，可以设想新的陶瓷性能。聚合物衍生的陶瓷（PDC）路线是“陶瓷通过化学”的概念，它允许合成新材料，其成分和形状难以使用更常规的方法进行定制。这篇综述重点介绍了过去几十年中有关PDC纤维制备的工作，特别关注了使用预陶瓷聚合物的熔融纺丝和电纺丝工艺制备的非晶态SiCN和SiBCN网络。这篇综述的一个主要重点是着眼于解决预陶瓷聚合物的分子结构/体系结构，它们的纺丝/固化/热解行为和最终纤维的性能之间的密切关系。

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