Ultrafine Zn powders produced by laserinduction complex heating evaporation condensation method

The metal ultrafine powders have superior catalytic,magnetic and electrical properties.The conventional method to manufacturer the metal powder is evaporation condensation method,and the several heating sources,such as resistance,high frequency induction,plasma,electron beam or laser,are used.But these heating sources are used respectively as a single heating source in these system,so have some disadvantages or limitations.Now,we have fined a complex heating source,the laser high frequency induction heating source to manufacture ultrafine Zn powder,by utilizing evaporation condensation method.In our experimental setup,the output rate is 12g/min,and the average diameter of Zn powder is 33.20nm.