Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method and device for preparing high-purity aluminum nitride nano powder
The invention is suitable for the technical field of material preparation, and provides a high-purity aluminum nitride nanopowder preparation method and device.The method comprises the steps that an adjustable-speed motor drives an aluminum wire to enter a surface treatment area, and a surface oxide layer of the aluminum wire is removed in the surface treatment area; the adjustable-speed motor continues to drive the aluminum wire with the surface oxide layer removed to enter an electromagnetic induction heating area in the aluminum nitride pipe, the aluminum wire is heated and melted in the electromagnetic induction heating area to form molten aluminum drop molten balls, and heating is conducted to enable aluminum atoms on the surfaces of the molten aluminum drops to escape from the surfaces of the molten aluminum drop molten balls; inert gas is controlled to sweep over the surface of the molten aluminum drop molten ball at a preset flow speed, and aluminum atoms are cooled and condensed to form nano aluminum particle smoke flames; and nitrogen is introduced into the aluminum particle smoke flame for a nitridation reaction, aluminum nitride nano powder is generated, and the aluminum nitride nano powder is collected through a powder collecting container. According to the method, introduction of oxygen and other impurities is avoided, nitridation is complete, the high-purity aluminum nitride nano powder can be obtained, and engineering, application and popularization are easy.
本申请适用于材料制备技术领域，提供了一种高纯氮化铝纳米粉末制备方法及装置，方法包括：调速电机驱动铝丝进入表面处理区，在表面处理区去除铝丝的表面氧化层；调速电机继续驱动去除表面氧化层后的铝丝进入氮化铝管内的电磁感应加热区，在电磁感应加热区将铝丝加热熔化，形成铝液滴熔球，并加热使铝液滴表面的铝原子逸出铝液滴熔球的表面；控制惰性气体以预设流速掠过铝液滴熔球的表面，对铝原子进行冷却并凝聚形成纳米铝颗粒烟焰；向铝颗粒烟焰通入氮气发生氮化反应，生成氮化铝纳米粉末，并通过粉末收集容器对氮化铝纳米粉末进行收集。本申请避免了氧和其它杂质的引入，氮化完全，可以获得高纯度的氮化铝纳米粉末，易于工程化和应用推广。
Method and device for preparing high-purity aluminum nitride nano powder
The invention is suitable for the technical field of material preparation, and provides a high-purity aluminum nitride nanopowder preparation method and device.The method comprises the steps that an adjustable-speed motor drives an aluminum wire to enter a surface treatment area, and a surface oxide layer of the aluminum wire is removed in the surface treatment area; the adjustable-speed motor continues to drive the aluminum wire with the surface oxide layer removed to enter an electromagnetic induction heating area in the aluminum nitride pipe, the aluminum wire is heated and melted in the electromagnetic induction heating area to form molten aluminum drop molten balls, and heating is conducted to enable aluminum atoms on the surfaces of the molten aluminum drops to escape from the surfaces of the molten aluminum drop molten balls; inert gas is controlled to sweep over the surface of the molten aluminum drop molten ball at a preset flow speed, and aluminum atoms are cooled and condensed to form nano aluminum particle smoke flames; and nitrogen is introduced into the aluminum particle smoke flame for a nitridation reaction, aluminum nitride nano powder is generated, and the aluminum nitride nano powder is collected through a powder collecting container. According to the method, introduction of oxygen and other impurities is avoided, nitridation is complete, the high-purity aluminum nitride nano powder can be obtained, and engineering, application and popularization are easy.
本申请适用于材料制备技术领域，提供了一种高纯氮化铝纳米粉末制备方法及装置，方法包括：调速电机驱动铝丝进入表面处理区，在表面处理区去除铝丝的表面氧化层；调速电机继续驱动去除表面氧化层后的铝丝进入氮化铝管内的电磁感应加热区，在电磁感应加热区将铝丝加热熔化，形成铝液滴熔球，并加热使铝液滴表面的铝原子逸出铝液滴熔球的表面；控制惰性气体以预设流速掠过铝液滴熔球的表面，对铝原子进行冷却并凝聚形成纳米铝颗粒烟焰；向铝颗粒烟焰通入氮气发生氮化反应，生成氮化铝纳米粉末，并通过粉末收集容器对氮化铝纳米粉末进行收集。本申请避免了氧和其它杂质的引入，氮化完全，可以获得高纯度的氮化铝纳米粉末，易于工程化和应用推广。
Method and device for preparing high-purity aluminum nitride nano powder
高纯氮化铝纳米粉末制备方法及装置
LEI HAILE (Autor:in) / LUO JIANGSHAN (Autor:in) / WAN XIAOBO (Autor:in) / LI JUN (Autor:in) / LIN WEI (Autor:in) / DAI FEI (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
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