Relationship Between Iron Whisker Growth and Doping Amount of Oxide During Fe2O3 Reduction
Gong, Xuzhong1; Zhao, Zhilong2; Wang, Zhi1; Zhang, Ben2; Guo, Lei2; Guo, Zhancheng2
2016-04-01
发表期刊METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
ISSN1073-5615
卷号47期号:2页码:1137-1146
摘要Iron whisker growth during Fe2O3 doped with oxide reduced by CO was investigated by using in situ observation and scanning electron microscopy. The results indicated that the minimum doping amount (MDA) of various oxides, hindering the iron whisker growth, was different. The MDA of Al2O3, Li2O, Na2O, and K2O was 0.5, 0.4, 4, and 12 pct, respectively. From the reduction rate, it was found that Li2O, MgO, and Al2O3 had some suppressive effects on the Fe2O3 reduction process, thus, confining the growth of iron whisker. However, other oxides had some catalytic effects on the Fe2O3 reduction process (Fe2O3-Fe3O4-FeO-Fe), such as CaO, SrO, BaO, Na2O, and K2O. As long as their doping amount was enough, these oxides could inhibit the diffusion of the Fe atom. When the metal ionic radius in doped oxide was bigger than that of Fe3+, such as Ca2+, Sr2+, Ba2+, Na+, and K+, there were lots of spaces left in Fe2O3 doped with oxide after reduction, improving Fe atom diffusion. Consequently, their MDA was more than that of small radius to restrain the growth of iron whisker. Finally, the relationship between corresponding metal ionic radius, electron layer number, valence electron number, and MDA of oxide was expressed by using data fitting as follows:
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1007/s11663-015-0538-0
收录类别SCI
语种英语
关键词[WOS]FLUIDIZED-BED REDUCTION ; CAO AND/OR MGO ; STEPWISE REDUCTION ; DENSE WUSTITE ; STICKING ; MECHANISM ; FERRITE ; PREVENTION ; PARTICLES ; MAGNESIUM
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号WOS:000375454700033
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21035
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China
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Gong, Xuzhong,Zhao, Zhilong,Wang, Zhi,et al. Relationship Between Iron Whisker Growth and Doping Amount of Oxide During Fe2O3 Reduction[J]. METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,2016,47(2):1137-1146.
APA Gong, Xuzhong,Zhao, Zhilong,Wang, Zhi,Zhang, Ben,Guo, Lei,&Guo, Zhancheng.(2016).Relationship Between Iron Whisker Growth and Doping Amount of Oxide During Fe2O3 Reduction.METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE,47(2),1137-1146.
MLA Gong, Xuzhong,et al."Relationship Between Iron Whisker Growth and Doping Amount of Oxide During Fe2O3 Reduction".METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE 47.2(2016):1137-1146.
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