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首页> 外文会议>2006 BIMW >Microstructural characterization of sprayed aluminum matrix composites reinforced by SiC particles
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Microstructural characterization of sprayed aluminum matrix composites reinforced by SiC particles

机译：SiC颗粒增强喷涂铝基复合材料的微观结构表征

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摘要

The microstructures of sprayed SiCp/Al composite fabricated by thermal spraying technique by optical microscope (OM) , scanning electronic microscope (SEM), transmission electronic microscope (TEM), X-ray (diffractometer) XRD, selected area electron diffraction (SAED), energy dispersive spectrum (EDS) techniques, were investigated. The composite consisted of SiC and Al, along with single crystal Si and amorphorous Si, and tiny Al_2O_3. The interfaces between SiC particles and Al matrix bonded well, and tiny reactants like Al_2O_3 were found near the interfaces. The mechanisms of chemical reactions during sprayin were discussed g. The nano-Al grains and particles were observed in the sprayed composite. The formation of nano-Al grains and particles of SiCp/ Al composites were explained. It has been found that Several interface relationships existed in the sprayed composite.
机译：光学显微镜（OM），扫描电子显微镜（SEM），透射电子显微镜（TEM），X射线（衍射仪）XRD，选择区域电子衍射（SAED），热喷涂技术制备的喷涂SiCp / Al复合材料的显微组织研究了能量色散谱（EDS）技术。该复合材料由SiC和Al以及单晶Si和非晶硅以及微小的Al_2O_3组成。 SiC颗粒与Al基体之间的界面结合良好，在界面附近发现Al_2O_3等微小反应物。讨论了花粉喷洒过程中的化学反应机理。在喷涂的复合物中观察到纳米Al晶粒和颗粒。解释了纳米Al晶粒和SiCp / Al复合材料颗粒的形成。已经发现在喷涂的复合物中存在几种界面关系。

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