| 摘要 |
<p>A plasma system (80) forms a dense, uniform coating of metallic oxide or other material on a relatively large substrate (94) of metal foil or other compositions located a substantial distance from the plasma gun (84) so that the plasma stream (92) covers the entire width of the substrate (94). A large pressure differential between the pressure inside the plasma gun (84) and the ambient pressure outside of the plasma gun (84) creates a shock pattern within the exiting plasma stream (92) so as to disperse the plasma stream and maintain a high energy level therein, as well as throughly mixing a coating material (96) introduced into the plasma stream (92) within the gun. The plasma stream (92) is delivered in a long, narrow configuration across the width of the substrate by a nozzle with a slit-like opening at the lower end of the plasma gun (84).</p> |
