Improved Corrosion Resisting Property of Magnetism Iron Fiber by SiO₂ Coating

Dongying Niu, Jinku Yu, Qi Qiao, Dongdong Wang, Runhai Liu

State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, China..

DOI: 10.4236/jsemat.2012.23026                

Abstract

To improve the oxidation resistance property of iron fibers, a SiO₂ coated iron fiber was prepared by sol-gel method, and its microstructure, element and phase composition, antioxidation property, and crystallization were characterized by scanning electron microscopy, thermal gravimetric analysis, X-ray diffraction and 3% CuSO₄ solution dripping. It was found that the surface of the iron fiber can be fully covered with SiO2 by using Sol-Gel method. Our results also indicated that the time of iron begin to be corrupted in 3% CuSO4 solution drip increased from 30 s to 240 s, and the temperature increased from 200?C to 310?C. In addition, the oxidation and antioxidation mechanisms of the SiO2 coated iron fiber have also been discussed in this work.

Keywords

Corrosion Resistance; Anti-Oxidation; Sol-Gel Method; SiO₂

Conflicts of Interest

The authors declare no conflicts of interest.

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