Microstructural development of a Cf/ZrC composite manufactured by reactive melt infiltration
Microstructural development of a Cf/ZrC composite manufactured by reactive melt infiltration
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DOI：
10.1016/j.jeurceramsoc.2009.10.016
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发表时间：
2010-04
影响因子：
5.7
通讯作者：
Linhua Zou;N. Wali;Jenn‐Ming Yang;N. Bansal
中科院分区：
文献类型：
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作者：
Linhua Zou;N. Wali;Jenn‐Ming Yang;N. Bansal
研究了反应熔渗法(RMI)制备的碳纤维增强锆基复合材料(Cf/ZRC)的组织演变规律。用光学显微镜(OM)、X射线衍射仪(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对复合材料的微观结构进行了表征。结果表明，碳纤维束被连续的ZrC层包围，而复合材料的基体由分散在α-Zr-ZrC共晶相中的岛状的ZrC颗粒组成。在某些氧化锆颗粒中发现了纳米夹杂物，证明它们是α-Zr或α-Zr-ZrC。提出了一种独特的基体组织形成机制。
The microstructural development of a carbon fibre reinforced ZrC matrix composite, Cf/ZrC, manufactured by reactive melt infiltration (RMI) was investigated. The microstructural features of the composite were revealed by optical microscopy (OM), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It was found that the carbon fibre bundles are surrounded by continuous ZrC layers, while the composite matrix is composed of island-like ZrC particles dispersed within an α-Zr–ZrC eutectic phase. Nanosized inclusions were found inside some ZrC particles and it was demonstrated that they were α-Zr or α-Zr–ZrC. A formation mechanism of the unique matrix microstructure is proposed.