• Journal of Inorganic Materials
  • Vol. 36, Issue 10, 1103 (2021)
Junmin ZHANG1、2、3, Xiaowu CHEN1、2、*, Chunjin LIAO1、2, Feiyu GUO1、2、3, Jinshan YANG1、2, Xiangyu ZHANG1、2, and Shaoming DONG1、2、*
Author Affiliations
  • 11. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • 22. Structural Ceramics and Composites Engineering Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • 33. School of Physical Science and Technology, Shanghai Tech University, Shanghai 200031, China
  • show less
    DOI: 10.15541/jim20210091 Cite this Article
    Junmin ZHANG, Xiaowu CHEN, Chunjin LIAO, Feiyu GUO, Jinshan YANG, Xiangyu ZHANG, Shaoming DONG. Optimizing Microstructure and Properties of SiCf/SiC Composites Prepared by Reactive Melt Infiltration [J]. Journal of Inorganic Materials, 2021, 36(10): 1103 Copy Citation Text show less

    Abstract

    Reactive melt infiltration (RMI) is one of the most effective methods to prepare highly dense ceramic matrix composites. The melt infiltration and the formation of composites are mainly determined by the pore structure of preforms. Here, SiC fiber reinforced SiC matrix composites (SiCf/SiC) were prepared by infiltrating Si melt into carbon-contained preforms with various pore structures. Effects of pore structure on the melt infiltration and received SiCf/SiC composites were investigated. The results indicated that the preforms with more homogeneous pore size could lead to more sufficient melt infiltration, and also resulted in fewer residual pores and better mechanical properties in the composites. This study is expected to provide important guidance for the pore structure regulation in the fabrication of RMI-composites.
    $t=\frac{M_{\mathrm{Si}} \cdot \rho_{\mathrm{SiC}} \cdot r_{0}^{2}}{6 M_{\mathrm{SiC}} \cdot \rho_{\mathrm{Si}} \cdot D_{\mathrm{C} / \mathrm{SiC}}}\left[1-3\left(\frac{r_{t}}{r_{0}}\right)^{2}+2\left(\frac{r_{t}}{r_{0}}\right)^{3}\right]$

    View in Article

    $t=812.63 \times r_{0}^{2}\left[1-3\left(\frac{r_{t}}{r_{0}}\right)^{2}+2\left(\frac{r_{t}}{r_{0}}\right)^{3}\right]$

    View in Article

    $\text { Pre-2: } t=35.84\left[1-3\left(\frac{r_{t}}{0.21}\right)^{2}+2\left(\frac{r_{t}}{0.21}\right)^{3}\right]$

    View in Article

    $\text { Pre-3: } t=88.50\left[1-3\left(\frac{r_{t}}{0.33}\right)^{2}+2\left(\frac{r_{t}}{0.33}\right)^{3}\right]$

    View in Article

    Junmin ZHANG, Xiaowu CHEN, Chunjin LIAO, Feiyu GUO, Jinshan YANG, Xiangyu ZHANG, Shaoming DONG. Optimizing Microstructure and Properties of SiCf/SiC Composites Prepared by Reactive Melt Infiltration [J]. Journal of Inorganic Materials, 2021, 36(10): 1103
    Download Citation