Effect of Sr addition on an Al–7Si–10 vol.% SiCp cast composites
Effect of Sr addition on an Al–7Si–10 vol.% SiCp cast composites
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DOI：
10.1016/j.msea.2004.05.017
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发表时间：
2004-09
期刊：
影响因子：
6.4
通讯作者：
J. García-Hinojosa;C. González;J. I. Juárez;M. Surappa
中科院分区：
文献类型：
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作者：
J. García-Hinojosa;C. González;J. I. Juárez;M. Surappa
研究了添加Sr（0.05-0.5%）对Al-7 wt.% Si-10体积%研究了SiCp复合材料。采用光学显微镜（OM）、扫描电镜（SEM）、能谱仪（EDS）、WDS微区分析技术和X射线粉末衍射技术对复合材料进行了表征。结果发现，Sr浓度在0.05和0.20之间有利于掺入更高的体积分数的SiC颗粒，也不有助于基体的整体改性。然而，在较高的wt.在基体-陶瓷界面处发现了富锶化合物。
The effect of additions of Sr (in the range 0.05–0.5%) on the microstructural characteristics of Al–7wt.% Si–10vol.% SiCpcomposites have been studied. Optical microscopy (OM), SEM, EDS, WDS microanalysis techniques and X-ray diffraction powder techniques have been used for the characterization of the composites. It was found that Sr concentrations between 0.05 and 0.20 facilitates incorporation of higher volume fraction of SiC particles and also does not contribute to the overall modification of the matrix. However, at higher wt.% of Sr, Sr-rich compounds were found. These Strontium rich compounds were located at the matrix–ceramic interface.