Photos 1/4 Step 1 INL prepares the feedstock material in an arc melter. Photo courtesy of INL 2/4 Step 2 The lab then melts it and converts it into uranium silicide powder. Photo courtesy of INL 3/4 Step 3 The powder is then pressed into pellets. Photo courtesy of INL 4/4 Step 4 The pressed pellets are then baked in a furnace to densify, which hardens and strengthens the pellets. Photo courtesy of