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首页> 外文会议>EPD congress 2004 >INTERFACE REACTION OF ALUMINUM ALLOY CENOSPHERE FLY ASH COMPOSITES
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INTERFACE REACTION OF ALUMINUM ALLOY CENOSPHERE FLY ASH COMPOSITES

机译：铝合金纳米球粉煤灰复合材料的界面反应

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The major constituents of cenosphere fly ash are various oxides such as Al2O3, SiO2, Fe2O3 and their qualities fraction sums surpass 85%. XRD analysis indicates that cenosphere fly ash present in complex glass and ceramic forms. This research adopts liquid stir casting to prepare cenosphere fly ash aluminium base compound. Cenosphere fly ash preheated less than 500°C for half an hour was compounded with aluminium at 780°C and the compound was prepared. It is possible to obtain a uniform distribution of cenospere fly ash in casting without protection. The solidification should be reasonably rapid or increase the volume content of particles to prevent floatation of fly ash particles to the top part of the castings. SEM and EDX analysis were carried to the composite. SEM micrograph shows that cenosphere fly ash can disperse uniformity. EDX results show that Fe2O3 and SiO2 react with aluminum and produce Fe and Si. MgO react with Al2O3 forming MgO·Al2O3 spinel.
机译：空心层飞灰的主要成分是各种氧化物，例如Al2O3，SiO2，Fe2O3，它们的质量分数总和超过85％。 XRD分析表明，空心球粉煤灰以复杂的玻璃和陶瓷形式存在。本研究采用液体搅拌铸造制备空心球粉煤灰铝基复合材料。将在500℃以下预热半小时的空心球粉煤灰与780℃的铝混合，制得该化合物。无需保护即可在铸造过程中获得均匀分布的obtain粉煤灰。固化应相当快，或增加颗粒的体积含量，以防止飞灰颗粒漂浮到铸件的顶部。对复合材料进行了SEM和EDX分析。扫描电镜显微照片表明，空心球粉煤灰可以分散均匀性。 EDX结果表明，Fe2O3和SiO2与铝反应生成Fe和Si。 MgO与Al2O3反应形成MgO·Al2O3尖晶石。

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