| 摘要 |
PURPOSE:To make a ceramic layer free from pinhole by irradiating electron beams on the surface of metal, ceramics or org. matter to improve the adhesive strength by pretreatment when ceramics is physically vapor-deposited on the surface in a vapor phase. CONSTITUTION:Electron beams of about 1.5kW are irradiated on the surface of metal, ceramics or org. matter under scanning. Since this method gives a higher power density than conventional ion bombardment, significant heating and cleaning effects are produced on the irradiated body in a short time, so oil and oxide layers which can not be removed by the conventional method are removed. After carrying out the pretreatment, ceramics is physically vapor-deposited on the pretreated surface in a vapor phase as usual. |
