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Microstructural evolution of Al2O3-ZrO2 (Y2O3) powder de-agglomerated by sodium hydroxide solution soaking
Xu, Linfeng1; Li, Ping2; Xi, Xiuan3; Shui, Anze1; Zhu, Wenli1; Dai, Wubin1
2016-01-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
Volume656Pages:798-804
AbstractAl2O3-ZrO2 (Y2O3) AZY nano-composite powder with a microstructure of zirconia grains buried in amorphous alumina was prepared by a novel co-precipitation method. Hard agglomerates in the powder can be easily broken down as a result of the amorphous alumina on the surface of primary particles, which is soluble in NaOH solution. 98.9% relative density was reached at 1300 degrees C, and grain abnormal growth emerged accompany with density decrease at 1550 degrees C for the de-agglomerated AZY composite powder. A small amount of sodium impurity residual in NaOH solution treated powder developed a dense microstructure with alumina grain in platelet shape at 1300 degrees C. The morphology and size of alumina platelet did not change much with the sintering temperature increasing. (C) 2015 Elsevier B.V. All rights reserved.
SubtypeArticle
KeywordDe-agglomerated Al2o3-zro2 Microstructural Evolution Solution Soaking
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jallcom.2015.10.058
WOS Subject ExtendedChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS KeywordANISOTROPIC GRAIN-GROWTH ; BOUNDARY-CHARACTER ; TOUGHNESS CERAMICS ; FRACTURE-TOUGHNESS ; TOUGHENED CERAMICS ; HIGH-STRENGTH ; COMPOSITES ; ZIRCONIA ; MECHANISM ; WHISKERS
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000365051000112
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10911
Collection中国科学院广州能源研究所
Affiliation1.S China Univ Technol, Coll Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
3.Osaka Univ, Joining & Welding Res Inst, Ibaraki, Osaka 5670047, Japan
Recommended Citation
GB/T 7714
Xu, Linfeng,Li, Ping,Xi, Xiuan,et al. Microstructural evolution of Al2O3-ZrO2 (Y2O3) powder de-agglomerated by sodium hydroxide solution soaking[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,656:798-804.
APA Xu, Linfeng,Li, Ping,Xi, Xiuan,Shui, Anze,Zhu, Wenli,&Dai, Wubin.(2016).Microstructural evolution of Al2O3-ZrO2 (Y2O3) powder de-agglomerated by sodium hydroxide solution soaking.JOURNAL OF ALLOYS AND COMPOUNDS,656,798-804.
MLA Xu, Linfeng,et al."Microstructural evolution of Al2O3-ZrO2 (Y2O3) powder de-agglomerated by sodium hydroxide solution soaking".JOURNAL OF ALLOYS AND COMPOUNDS 656(2016):798-804.
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