(西安交通大學(xué)材料學(xué)院，西安710049)
摘 要: 通過(guò)對(duì)Si和CuO粉末進(jìn)行高能球磨制備了Cu和SiO2的復(fù)合材料。表明了一般條件下難以進(jìn)行的固l態(tài)還原反應(yīng)，在高能球磨時(shí)可以發(fā)生；還原產(chǎn)物為納米級(jí)的Cu和非晶的SiO2還原反應(yīng)的進(jìn)程有賴于高能球磨的條件；利用高能球磨可以直接制備納米級(jí)氧化物-金屬?gòu)?fù)合材料。
關(guān)鍵字: 高能球磨 固態(tài)還原反應(yīng) 納米復(fù)合材料
（School of Materials Sciece and Engineering,
Xi′an Jiaotong University, Xi′an 710049）
Abstract:A composite consisting of Cu and SiO2has been prepared with Si and CuO powders by using high-energy ball milling. The results indicated that the solid-state reduction reactions which may not be realized under usual conditions can be carried out through high-energy ball milling. The reduction products were nanometer order Cu and non-crystalline SiO2, depending upon a favourable high-energy ball milling condition. Therefore nanometer order oxide-metal composites can be prepared directly using high-energy ball milling technique.
Key words: high-energy ball milling solid-state reduction reaction nanometer composite
