Synthesis of graphite films on 304 stainless steel (304SS) with and without multi-arc ion plated Cr and Ti coating by galvanostatic electroreduction of carbonate ions in molten 0.2Na(2)CO(3)-0.8NaCl (in mole fraction) has been investigated at 900 degrees C in argon gas, and the deposits were examined by scanning electron microscopy and Raman spectroscopy. The experimental results indicated that the carbon deposits obtained on both the Cr-coated and Ti-coated 304SS at the constant current density of 192 mA cm(-2) were continuous and exhibited a compact structure, with an excellent bonding with the substrate, while that obtained on the bare 304SS was porous and exhibited a poor adhesion to the substrate. Raman spectroscopy measurements showed that the carbon deposits on 304SS were mainly composed of amorphous carbon, with a small amount of graphitic crystallites, whereas the carbon films deposited on the Cr and Ti-coated 304SS consisted of well-crystallized graphite. The microstructure of ion plated coatings is helpful to the nucleation and growth of a well-crystallized graphite film. (c) 2012 Elsevier B.V. All rights reserved.
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[lv, w. y.; zeng, c. l.] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;zeng, cl (reprint author), chinese acad sci, inst met res, state key lab corros & protect, wencui rd 62, shenyang 110016, peoples r china.;clzeng@imr.ac.cn
W. Y. Lv,C. L. Zeng. Preparation of cohesive graphite films by electroreduction of CO32- in molten Na2CO3-NaCl[J]. Surface & Coatings Technology,2012,206(19-20):4287-4292.
APA
W. Y. Lv,&C. L. Zeng.(2012).Preparation of cohesive graphite films by electroreduction of CO32- in molten Na2CO3-NaCl.Surface & Coatings Technology,206(19-20),4287-4292.
MLA
W. Y. Lv,et al."Preparation of cohesive graphite films by electroreduction of CO32- in molten Na2CO3-NaCl".Surface & Coatings Technology 206.19-20(2012):4287-4292.
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