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Production of ultrafine ZrO2 and Y-doped ZrO2 powders by solvent extraction from solutions of perchloric and nitric acid with tri-n-butyl phosphate in kerosene
Alternative TitlePowder Technol.
Yang, CF; Hong, B; Chen, JY
1996-11-01
Source PublicationPOWDER TECHNOLOGY
ISSN0032-5910
Volume89Issue:2Pages:149-155
AbstractZr(IV) with or without addition of Y3+ was extracted with tri-n-butyl phosphate (TBP) in kerosene from solutions of perchloric acid and nitric acid with the formation of the third-phase microemulsion. The loaded organic phase was precipitated with a controlled amount of 25% ammonia in aqueous solution. After washing with water and vacuum freeze-drying, the precipitate was calcined to oxide at 600 degrees C. The as-prepared powders were characterized by thermogravimetric differential thermal analysis (TG-DTA),BET adsorption, X-ray diffractometry (XRD), and transmission electron microscopy (TEM). It was found that the specific surface areas of ZrO2 and Y-doped ZrO2 powders were 30-58 m(2)/g and 233 m(2)/g respectively. The relative content of tetragonal ZrO2 decreased with increasing pH of precipitation. The Y-doped ZrO2 was found to be amorphous with flocculent morphology and without body pores. The particulate ZrO2 was 10 nm in diameter on average. Powders prepared in this way were tested by energy dispersive analysis with X-rays (EDAX) and were found to contain no other contaminants.; Zr(IV) with or without addition of Y3+ was extracted with tri-n-butyl phosphate (TBP) in kerosene from solutions of perchloric acid and nitric acid with the formation of the third-phase microemulsion. The loaded organic phase was precipitated with a controlled amount of 25% ammonia in aqueous solution. After washing with water and vacuum freeze-drying, the precipitate was calcined to oxide at 600 degrees C. The as-prepared powders were characterized by thermogravimetric differential thermal analysis (TG-DTA),BET adsorption, X-ray diffractometry (XRD), and transmission electron microscopy (TEM). It was found that the specific surface areas of ZrO2 and Y-doped ZrO2 powders were 30-58 m(2)/g and 233 m(2)/g respectively. The relative content of tetragonal ZrO2 decreased with increasing pH of precipitation. The Y-doped ZrO2 was found to be amorphous with flocculent morphology and without body pores. The particulate ZrO2 was 10 nm in diameter on average. Powders prepared in this way were tested by energy dispersive analysis with X-rays (EDAX) and were found to contain no other contaminants.
KeywordZirconium Oxide Yttrium Doped Powders Ultrafine Powders Solvent Extraction Microemulsions
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed BySCI
Language英语
WOS KeywordSYSTEM
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:A1996VX31400007
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6038
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Yang, CF,Hong, B,Chen, JY. Production of ultrafine ZrO2 and Y-doped ZrO2 powders by solvent extraction from solutions of perchloric and nitric acid with tri-n-butyl phosphate in kerosene[J]. POWDER TECHNOLOGY,1996,89(2):149-155.
APA Yang, CF,Hong, B,&Chen, JY.(1996).Production of ultrafine ZrO2 and Y-doped ZrO2 powders by solvent extraction from solutions of perchloric and nitric acid with tri-n-butyl phosphate in kerosene.POWDER TECHNOLOGY,89(2),149-155.
MLA Yang, CF,et al."Production of ultrafine ZrO2 and Y-doped ZrO2 powders by solvent extraction from solutions of perchloric and nitric acid with tri-n-butyl phosphate in kerosene".POWDER TECHNOLOGY 89.2(1996):149-155.
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