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| Preparation of Ln3Al5O12(Ln=Y, Ce, Yb) Lanthanide Aluminium Garnets with Co-precipitation Method |
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Received:February 07, 2012
Revised:February 08, 2012
Accepted:February 09, 2012
Published Online:August 20, 2012
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| DOI：doi：10.3969/j.issn.1007-7545.2012.09.017 |
| KeyWord:co-precipitation method; LnAG(Y, Ce, Yb); Ln3Al5O12; nanopowder; property; characterization |
| Author | Institution |
| limei |
内蒙古科技大学 |
| lihai |
内蒙古科技大学 |
| liu zhao-gang |
内蒙古科技大学 |
| hu yan-hon |
内蒙古科技大学 |
| wang mi-tang |
内蒙古科技大学 |
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| Abstract: |
| Ln3Al5O12(LnAG, Ln=Y, Ce, Yb) lanthanide aluminium garnets nanopowders were prepared by co-precipitation method with Y2O3, Yb2O3, Al(NO3)3?9H2O and Ce(NO3)3?6H2O as raw materials, NH4HCO3 and NH3?H2O as co-precipitator. The precursor and calcined powders were characterized with TG/DTA, XRD, SEM and TEM. The results show that well dispersive, regular shape Y3Al5O12, Yb3Al5O12, Y2.9Ce0.1Al5O12 garnets powders with an average particle size of about 50 nm were obtained by calcining the precursor at 1 000 ℃ for 3 h. However, Ce3Al5O12 does not formed under the same experimental conditions. The optimum calcining temperature to synthetize garnets powder is above 1 050 ℃. |
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