A Synthesis of Purified Aluminum Fluoride Powder by Atmospheric Microwave-Plasma Torch

概要

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Synthesis of aluminum fluoride (AlF3) powder by direct evaporation of aluminum (Al) granules in an atmospheric microwave-plasma torch demonstrates a possibility of a direct continuous preparation. The solid-phase Al granules are injected axially by Ar gas. H2, CF4, and N2 as a swirl gas are used for fluorination of Al granule and plasma stabilization. The as-produced samples were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR). The average crystal size obtained from the Williamson–Hall plot was approximately 37 nm. The surface area and pore distribution properties of the particles were also analyzed by making use of the nitrogen absorption method.
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2008-01-25