| 薄膜钝化过程研究方法及其应用 |
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| 摘 要： | 根据传统擦伤电极试验原理，自行设计了一套用于薄膜材料钝化过程研究的装置，由于它采用的是断裂方式产生裸表面，因而克服了传统擦伤方式裸表面逐渐暴露于介质的弱点，能直接测量到真实反映钝化过程的电流衰减曲线。利用这套装置对磁控溅射晶态与非晶态不锈钢合金薄膜在３．５％ＮａＣｌ溶液中的钝化过程进行了比较研究，结果表明非晶薄膜的裸表面具有更高的反应活性及更快的钝化膜形成速度。
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| 关 键 词： | 薄膜，钝化，断裂，擦伤 |
A Method for Film Passivation Process Study and Its Application |
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| Authors: | Zhou Honghui Li Huiqin Sun Dongbai Yang Dejun |
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| Institution: | Dept.of Surface Science and Corrosion Engineering |
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| Abstract: | A set of film fracture apparatus has been designed on the basis of traditional scratching electrode experiment theory.The advantage of the film fracture method for passivation process study consists in the simultaneous exposing of the bare surface into solution,therefore the accurtate current decay relationship resulting from the passivation can be measured.The passivation process in 3.5% NaCl solution of the magnetron-sputtered amorphous and crystalline stainless steel film have been studied by use of the apparatus. The results showed that the bare surface of the amorphous film exhibited a higher reactivity and a more rapid formation rate of passive layer compared with the crystalline film. |
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| Keywords: | film passivation fracture scratch |
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