碳热反应
陶瓷
热解
聚合物
同步加速器
衍射
碳纤维
相(物质)
工作(物理)
材料科学
纳米技术
化学物理
化学工程
化学
复合材料
机械工程
工程类
光学
物理
有机化学
复合数
碳化物
作者
Kathy Lu,Harrison Chaney
摘要
Abstract This study focuses on the early stage of polymer‐derived SiOC ceramic conversion. We demonstrate that the perceived SiOC phase separation is nonexistent. Instead, SiO 2 and free carbon clusters form first and then carbothermal reduction sets in to induce SiOC formation. Such fundamental understanding is supported by both synchrotron X‐ray diffraction study and reactive force field simulation. This work for the first time unifies the understanding of atomic evolution process of polysiloxane‐based polymer to ceramic conversion.
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