| 添加剂BaO对铝电解用xCu/（10NiO-NiFe_2O_4）金属陶瓷惰性阳极腐蚀性能的影响 |
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| 引用本文： | 何汉兵,肖汉宁,周科朝.添加剂BaO对铝电解用xCu/（10NiO-NiFe_2O_4）金属陶瓷惰性阳极腐蚀性能的影响[J].中国有色金属学会会刊,2011,21(1):102-108. |
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| 作者姓名： | 何汉兵 肖汉宁 周科朝 |
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| 作者单位： | 何汉兵,HE Han-bing(中南大学,冶金科学与工程学院,长沙,410083;湖南大学,材料科学与工程学院,长沙,410082);肖汉宁,XIAO Han-ning(湖南大学,材料科学与工程学院,长沙,410082);周科朝,ZHOU Ke-chao(中南大学,粉末冶金国家重点实验室,长沙,410083) |
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| 基金项目： | the National Basic Research Program of China，the National Natural Science Foundation for Innovation Group of China，the National High-tech Research and Development Program of China，the Basic Scientific Research Program of Central South University |
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| 摘 要： | 制备铝电解用xCu/（10NiO-NiFe2O4）和1BaO-xCu/（10NiO-NiFe2O4）（x=5,10,17）金属陶瓷惰性阳极,在传统电解质中以电流密度1.0A/cm2进行实验室电解腐蚀实验。结果表明：金属Cu被腐蚀,在阳极表面留下了许多孔洞从而导致在电解过程中电解质向阳极内部渗透;金属陶瓷5Cu/（10NiO-NiFe2O4）,10Cu/（10NiO-NiFe2O4）,17Cu/（10NiO-NiFe2O4）,1BaO-5Cu/（10NiO-NiFe2O4）,1BaO-10Cu/（10NiO-NiFe2O4）和1BaO-17Cu/（10NiO-NiFe2O4）的腐蚀速率分别为2.15,6.50,8.30,4.88,4.70和4.48cm/a;添加剂BaO对10Cu/（10NiO-NiFe2O4）和17Cu/（10NiO-NiFe2O4）金属陶瓷的抗腐蚀性能是有利的,因为添加剂BaO能有效提高其致密度从而提高其抗腐蚀性能;但BaO对5Cu/（10NiO-NiFe2O4）金属陶瓷的抗腐蚀性能是不利的,可能是因为聚集在晶界的添加剂BaO加速了金属陶瓷的腐蚀。
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| 关 键 词： | BaO 惰性阳极 铝电解 金属陶瓷 耐腐蚀性能 腐蚀速率 |
Effect of additive BaO on corrosion resistance of xCu/(10NiO-NiFe2O4) cermet inert anodes for aluminum electrolysis |
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| HE Han-bing,XIAO Han-ning,ZHOU Ke-chao.Effect of additive BaO on corrosion resistance of xCu/(10NiO-NiFe2O4) cermet inert anodes for aluminum electrolysis[J].Transactions of Nonferrous Metals Society of China,2011,21(1):102-108. |
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| Authors: | HE Han-bing XIAO Han-ning ZHOU Ke-chao |
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| Affiliation: | HE Han-bing1,2,XIAO Ha n-ning2,ZHOU Ke-chao3 1.School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China,2.School of Materials Science and Engineering,Hunan University,Changsha 410082,3.State Key Laboratory of Powder Metallurgy,Ce ntral South University |
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| Abstract: | xCu/(10NiO-NiFe2O4) cermet and 1BaO-xCu/(10NiO-NiFe2O4) cermet(x=5,10,17) inert anodes were prepared as potential inert anodes for aluminum electrolysis and their corrosion resistance to traditional electrolyte was studied with anodic current density of 1.0 A/cm2 in laboratory electrolysis.The substantial corrosion of metal Cu was observed,many pores appeared on the surface of anode and electrolytes infiltrated inside anodes during the electrolysis.The wear rates of 5Cu/(10NiO-NiFe2O4),10Cu/(10NiO-NiFe2O4),... |
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| Keywords: | BaO |
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