Potasuim Chlorate and Dark Aluminium Flash Powder

Hey Youtubers (And Instructaganders), in this video I show how a mixture of 1 Parts Dark Aluminium and 1 Parts Potassium Chlorate Burns...

The answer..? Very aggressively :D
When making powder, can you use anything other than foil to produce the same quality? Say CNC machined aluminum chips, then tossed in a grinder.