Title of article
Preparation and characterization of Y3Al5O12 (YAG) nano-powder by co-precipitation method
Author/Authors
Su، نويسنده , , J. and Zhang، نويسنده , , Q.L. and Gu، نويسنده , , C.J. and Sun، نويسنده , , D.L. and Wang، نويسنده , , Z.B. and Qiu، نويسنده , , H.L. and Wang، نويسنده , , A.H. and Yin، نويسنده , , S.T.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
7
From page
1279
To page
1285
Abstract
YAG precursor was synthesized by a co-precipitation method from a mixed solution of aluminum and yttrium nitrates with aqueous ammonia as the precipitator. The structure, phase evolution and morphology of YAG precursor and the sintered powders were studied by means of IR, TG/DTA, XRD, TEM methods. It was found the precursor with approximate composition of Al(OH)3·0.3[Y2(OH)5·(NO3)2·2H2O] directly transformed to pure-YAG phase at 800 °C and no intermediate phases were detected. YAG nanocrystalline powders from sintering the precursor at different temperatures were less-aggregated and the diameters of the grains were about 40–100 nm. BET surface area of the particles decreased with increase of calcination temperature and the powder sintered at 800 °C can be used for fabrication of transparent YAG ceramics.
Keywords
B. Chemical synthesis , A. Nanostructures
Journal title
Materials Research Bulletin
Serial Year
2005
Journal title
Materials Research Bulletin
Record number
2097221
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