Investigation of nano-powders made by spark discharging reaction

For the high cost, poor nano-size controlling and the complex technology in the existing Preparation of nano-materials, Gas-Powder Mixed Spark Discharge Reaction (GPMSGR) was used for the preparation of nano-powders. Nano-powders, average particle diameter of 100-150nm were obtained by using GPMSGR with improving the existing ordinary column type EDM machines.