TITLE:
Improved Corrosion Resisting Property of Magnetism Iron Fiber by SiO2 Coating
AUTHORS:
Dongying Niu, Jinku Yu, Qi Qiao, Dongdong Wang, Runhai Liu
KEYWORDS:
Corrosion Resistance; Anti-Oxidation; Sol-Gel Method; SiO2
JOURNAL NAME:
Journal of Surface Engineered Materials and Advanced Technology,
Vol.2 No.3,
July
25,
2012
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.