PREPARATION OF NANOSIZED METAL-OXIDE ULTRAFINE POWDERS BY ATOMIZING-COMBUSTION TECHNIQUE
来源期刊：中南大学学报(英文版)1998年第2期
论文作者：Chen Shizhu Yin Zhimin
文章页码：6 - 8
Key words：metal-oxide; nanosized powder; atomizing-combustion
Abstract: The nano-sized metal-oxide ultrafine powders of the low-melting-point metals can be prepared rapidly using a new atomizing -combustion technique by which the superheated metal melt was atomized with a ceramic atomizing-burner first through the medium of high pressure oxygen, then the metal fog burned up in a combustion chamber.Based on the experiments,nano-sized SnO2, In2O3 and Bi2O3 powders were obtained successfully by atomizing-combustion technique.The mechanism and process parameters of the technique were discussed. The phase structure and the microstructure of these metal-oxide ultrafine powders were studied by XRD and TEM respectively.The biggest size of grain was less than 50 nm,and 1 kg metal-oxide ultrafine powder can be prepared in only 45-48 seconds.
