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Dual effects of co-electrodeposition of CeO2 nanoparticles on the grain growth of nanocrystalline Ni matrix
Zheng, Liangfu; Yang, Zhen; Zhen, Huijuan; Peng, Xiao; Zheng, LF; Peng, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.; Peng, X (reprint author), Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China.
2017-05-01
发表期刊JOURNAL OF MATERIALS RESEARCH
ISSN0884-2914
卷号32期号:9页码:1741-1747
摘要Thermal stability up to 400 degrees C of nanocrystalline (NC) Ni electrodeposits (EDs) with a mean grain size of 28 nm and dispersions of a small amount of CeO2 nanoparticles has been investigated by comparing with two CeO2-free NC Ni counterparts, one with a slightly smaller mean grain size of 18 nm and the other with a slightly larger mean grain size of 34 nm. The results show that the co-deposition of CeO2 particles has dual effects on the thermal stability of the NC Ni EDs, i.e., it promotes the grain growth at the beginning but retards subsequently. It is proposed that the CeO2 co-deposition leads to a decrease in sulfur level and an increase in the plane defects as a result of introduction of incoherent Ni/CeO2 interfaces, which play dominant roles in the grain growth at low temperatures; while the drag effect of CeO2 dispersions becomes dominant at higher temperatures.; Thermal stability up to 400 degrees C of nanocrystalline (NC) Ni electrodeposits (EDs) with a mean grain size of 28 nm and dispersions of a small amount of CeO2 nanoparticles has been investigated by comparing with two CeO2-free NC Ni counterparts, one with a slightly smaller mean grain size of 18 nm and the other with a slightly larger mean grain size of 34 nm. The results show that the co-deposition of CeO2 particles has dual effects on the thermal stability of the NC Ni EDs, i.e., it promotes the grain growth at the beginning but retards subsequently. It is proposed that the CeO2 co-deposition leads to a decrease in sulfur level and an increase in the plane defects as a result of introduction of incoherent Ni/CeO2 interfaces, which play dominant roles in the grain growth at low temperatures; while the drag effect of CeO2 dispersions becomes dominant at higher temperatures.
部门归属[zheng, liangfu ; yang, zhen ; zhen, huijuan ; peng, xiao] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china ; [peng, xiao] nanchang hangkong univ, sch mat sci & engn, nanchang 330063, jiangxi, peoples r china
关键词Calorimetry Nanostructure Second Phases
学科领域Materials Science, Multidisciplinary
资助者National Natural Science Foundation of China (NSFC) [51271189]
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/78160
专题中国科学院金属研究所
通讯作者Zheng, LF; Peng, X (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.; Peng, X (reprint author), Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China.
推荐引用方式
GB/T 7714
Zheng, Liangfu,Yang, Zhen,Zhen, Huijuan,et al. Dual effects of co-electrodeposition of CeO2 nanoparticles on the grain growth of nanocrystalline Ni matrix[J]. JOURNAL OF MATERIALS RESEARCH,2017,32(9):1741-1747.
APA Zheng, Liangfu.,Yang, Zhen.,Zhen, Huijuan.,Peng, Xiao.,Zheng, LF.,...&Peng, X .(2017).Dual effects of co-electrodeposition of CeO2 nanoparticles on the grain growth of nanocrystalline Ni matrix.JOURNAL OF MATERIALS RESEARCH,32(9),1741-1747.
MLA Zheng, Liangfu,et al."Dual effects of co-electrodeposition of CeO2 nanoparticles on the grain growth of nanocrystalline Ni matrix".JOURNAL OF MATERIALS RESEARCH 32.9(2017):1741-1747.
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