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鈰對Zr-4合金微弧氧化陶瓷膜結(jié)構(gòu)和性能的影響
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內(nèi)蒙古自治區(qū)高等學(xué)?？茖W(xué)研究項(xiàng)目(NJZY08232)


Effect of Cerium on the Structure and Properties of Micro-Arc Oxidation Ceramic Coatings of Zircalloy-4
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    摘要:

    在硅酸鹽堿性電解液中加入稀土元素Ce的絡(luò)合物，采用恒壓微弧氧化技術(shù)在Zr-4合金表面制備陶瓷膜。分析了稀土元素Ce在陶瓷膜中的存在形式，以及對陶瓷膜的厚度、相組成、耐磨損性能和耐腐蝕性能的影響。稀土元素Ce能夠進(jìn)入陶瓷膜并在陶瓷膜中以固溶形式存在，影響陶瓷膜中t-ZrO2和m-ZrO2的相對比例，使孔洞及粒狀物明顯減少，陶瓷膜表面光滑致密，陶瓷膜厚度增加，耐磨、耐腐蝕性能提高。電解液中Ce的絡(luò)合物加入量在0.001~0.003 mol/L時(shí)效果最為明顯

    Abstract:

    Adding cerium complex to the silicate alkalinity electrolyte, the ceramic coating on the surface of Zircalloy-4 was prepared by constant voltage micro-arc oxidation. The existing form of the rare-earth element Ce in the ceramic coating and the influence of Ce on the coating thickness, phase composition, wear resistance and corrosion resistance were analyzed. The results show that Ce can enter the ceramic coating and exists in the form of solid solution, so that the relative proportion of t-ZrO2 and m-ZrO2 phases changes, the pores and granules are obviously reduced, the surface becomes smoother and more compact, the thickness of the coating increases, and the corrosion resistance and wear resistance are remarkably improved. The optimal addition amount of cerium complex in the electrolyte is 0.001-0.003 mol/L

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婭 婭,郭 鋒,李鵬飛,劉 亮,郝 磊.鈰對Zr-4合金微弧氧化陶瓷膜結(jié)構(gòu)和性能的影響[J].稀有金屬材料與工程,2010,39(8):1443~1446.[Ya Ya, Guo Feng, Li Pengfei, Liu Liang, Hao Lei. Effect of Cerium on the Structure and Properties of Micro-Arc Oxidation Ceramic Coatings of Zircalloy-4[J]. Rare Metal Materials and Engineering,2010,39(8):1443~1446.]
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  • 收稿日期:2009-08-24
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