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Synthesis of gadolinium aluminate powder through citrate gel route

DSpace at IIT Bombay

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Title Synthesis of gadolinium aluminate powder through citrate gel route
 
Creator SINHA, A
SHARMA, BP
NAFE, H
GOPALAN, P
 
Subject combustion synthesis
doped gdalo3
luminescence
oxides
gadolinium aluminate
gdalo3
citrate-nitrate
tg-dsc
ht-xrd
mass spectrometry
rietveld analysis
 
Description Nanocrystalline gadolinium aluminate (GdAlO(3)) powder was prepared through citrate gel route. The thermal decomposition behavior of gadolinium-aluminium-citrate-nitrate precursor powder was studied with the help of thermo gravimetric analysis combined with differential scanning calorimetry and mass spectroscopy. The phase evolution of the powder at different temperatures was characterized by high-temperature X-ray diffraction. The decomposition of the precursor powder in oxidizing atmosphere was found to be a three-step process: (i) evolution of water and ammonia; (ii) evolution of carbon dioxide, residual water, and ammonia; (iii) oxidation of residual carbon. Calcination of precursor powder at 800 degrees C under static air was found to result in GdAlO(3) phase. In the absence of oxidizing atmosphere the amorphous precursor powder only partially crystallized into GdAlO(3) phase at 1200 degrees C. .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T23:19:42Z
2011-12-26T12:58:45Z
2011-12-27T05:49:13Z
2011-07-28T23:19:42Z
2011-12-26T12:58:45Z
2011-12-27T05:49:13Z
2010
 
Type Article
 
Identifier JOURNAL OF ALLOYS AND COMPOUNDS, 502(2), 396-400
0925-8388
http://dx.doi.org/10.1016/j.jallcom.2010.04.179
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7523
http://hdl.handle.net/10054/7523
 
Language en