Document Detail


Effect of acidity on microstructure and spectroscopic properties of Y2O3:Eu3+ powders and ceramics.
MedLine Citation:
PMID:  20004609     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Y(2)O(3):Eu(3+) nano-powders were synthesized by homogeneous precipitation and the influence of solution acidity was investigated. IR and TG-DTA analysis showed that in different acidic solutions different kinds of sediments were generated. TEM images revealed distinct morphologies of obtained powders. The resultant powders were sintered into ceramics in vacuum and then in N(2) atmosphere without any additives. SEM images indicated that the morphologies of powders have significant impact on the microstructures of sintering-derived ceramics. Low-agglomerated and uniform powders were in favor of production of ceramics with homogeneous microstructures. Excitation and emission spectra of both powders and ceramics were measured and some changes were observed.
Authors:
Chao-Nan Wang; Yong Li; Wei-Ping Zhang; Min Yin
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-05-22
Journal Detail:
Title:  Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy     Volume:  75     ISSN:  1873-3557     ISO Abbreviation:  Spectrochim Acta A Mol Biomol Spectrosc     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-02-04     Completed Date:  2010-04-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9602533     Medline TA:  Spectrochim Acta A Mol Biomol Spectrosc     Country:  England    
Other Details:
Languages:  eng     Pagination:  8-13     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier B.V. All rights reserved.
Affiliation:
Hefei National Laboratory for Physical Sciences at the Microscale, Hefei, PR China.
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MeSH Terms
Descriptor/Qualifier:
Acids / chemistry
Ceramics / chemistry*
Europium / chemistry*
Hydrogen-Ion Concentration*
Materials Testing
Oxides / chemistry*
Particle Size
Powders*
Spectroscopy, Fourier Transform Infrared
Surface Properties
X-Ray Diffraction
Ytterbium / chemistry*
Chemical
Reg. No./Substance:
0/Acids; 0/Ceramics; 0/Oxides; 0/Powders; 7440-53-1/Europium; 7440-64-4/Ytterbium

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