(中南大學(xué) 材料科學(xué)與工程系， 長沙 410083)
摘 要: 分析了合金液霧滴徑及霧場形態(tài)對霧化燃燒質(zhì)量的影響，指出合金熔體被霧化得越細(xì)，越有利于著火燃燒，而合金液霧的燃燒所出現(xiàn)的高溫使得合金霧滴沸騰并揮發(fā)而形成氣相，氣相的燃燒是獲得納米級金屬氧化物的根本原因。采用旋渦式霧化燃燒器有利于合金液霧與氧氣的充分混合，從而有利于合金液霧的完全氧化。
關(guān)鍵字: 霧化； 燃燒； 氧化物； 納米
and modality of atomizing field on
oxygenating-combustion
（Department of Materials Science and Engineering，
Central South University, Changsha 410083, P.R.China）
Abstract: The effects of the size of liquid alloyed droplets and the modality of atomizing field on atomizing-combustion process were studied. It was pointed out that the finer the size of the alloyed droplets are, the better the combustion of the alloyis. Violent combustion of fine liquid alloyed droplets results in high temperature and volatilization in burning chamber. It is the combustion of metal gas that the nanosized metal-oxide powders were prepared. On the other hand , vortical nozzle is propitious to contact between liquid alloyed droplets and oxygen for burning completely.
Key words: atomizing; combustion; oxide; nanosized powder
