PASSIVATION OF PERMALLOY THIN-FILMS .1. KINETICS OF ANODIC-OXIDATION IN NEUTRAL SOLUTIONS

被引：14

作者：

DAGAN, G

TOMKIEWICZ, M

机构：

[1] Physics Department, Brooklyn College of CUNY, Brooklyn

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1992年 / 139卷 / 02期

关键词：

D O I：

10.1149/1.2069240

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The formation of protective films by electrochemical anodic oxidation on thin films of Permalloy Ni0.8Fe0.2 was studied. The kinetics of formation was investigated under potentiostatic conditions in several neutral and slightly basic electrolytes. The thickness of the passive film was studied by impedance measurements. It was found to be constant (10 to 12 angstrom) in time and oxidation potential. The most blocking passive films were obtained in borate buffer solution (pH = 8.4). The growth kinetics of the passive film fits a point defect model where oxide defects play a crucial role.

引用

页码：461 / 466

页数：6

共 34 条

[1] THEORY OF THE OXIDATION OF METALS [J].