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首页> 外文期刊>International journal of nanoscience >Studies on generation and characterization of nanoalumina powder using wire explosion technique
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Studies on generation and characterization of nanoalumina powder using wire explosion technique

机译：线爆炸技术制备纳米氧化铝粉及其表征研究

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The nanoalumina particles were produced by the wire explosion process. The size and the shape of the particles were measured using Transmission Electron Microscope (TEM) studies. The Scanning Electron Microscope (SEM) studies were carried out to confirm that the particles are of sub-micron size. The compositions of the material were characterized through the Energy Dispersive Angle X-ray Analysis (EDAX) results. The Wide Angle X-ray Diffraction (WAXD) and the Fourier Transform Infra-Red (FTIR) results confirmed the nanosize powder formed by the process as crystalline γ-Al{sub}2O{sub}3 powder. The thermal characteristics were analyzed using Thermo-gravimetric Differential thermal analysis (TG-DTA). It is identified that the local temperature of the medium at the time of formation of nanopowder decides the phase characteristics of the powder material. The formation mechanism of nanopowder by wire explosion technique was explained in detail. The mechanism of nanopowder formation and the characteristic changes that occur during the explosion process were recorded using a high-speed digital camera.
机译：纳米氧化铝颗粒是通过线爆炸法生产的。使用透射电子显微镜（TEM）研究测量颗粒的尺寸和形状。进行了扫描电子显微镜（SEM）研究，以确认颗粒的大小为亚微米。通过能量色散角X射线分析（EDAX）结果表征了材料的组成。广角X射线衍射（WAXD）和傅立叶变换红外（FTIR）结果证实了该工艺形成的纳米级粉末为结晶γ-Al{sub} 2O {sub} 3粉末。使用热重差热分析（​​TG-DTA）分析热特性。可以确定的是，在形成纳米粉末时介质的局部温度决定了粉末材料的相特性。详细介绍了线爆炸技术形成纳米粉体的机理。使用高速数码相机记录了纳米粉末形成的机理以及爆炸过程中发生的特性变化。

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