| 摘要 |
Ultra fine powders of metals, metal oxides, complex metal oxides and mixtures of metals and oxides produced by a development of the flame pyrolysis technique, involving the use of a water miscible secondary fuel. Such powders are in the particle diameter range 1 to 50 nano metres and have improved physical, catalytic and chemical reactivity properties. Such powders can be compressed and calcined to produce shaped components. The secondary fuel is preferably a combustible liquid such as alcohols, aldehydes, ketones, esters and ethers, most probably being methylated ethyl alcohol. |
