ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
By means of co-precipitation, pure YAG phase was synthesized from the reaction of aluminumyttrium and cerium nitrates with ammonia as precipitator. In order to obtain the special coating oxideprecursor, the metal ions solution and ammonia were respectively added with fixed ratio by twoperistaltic pumps to maintain an expired pH value and reaction rate. The as-received precursor wasannealed at 700°C and 900°C respectively. The structure, phase evolution and morphology of theas-prepared YAG nanopowders were tested by XRD, BET and SEM. At lower temperature (900°C),coating oxide precursor was directly transformed to nanopowders of pure YAG phase. The high saltsolution concentration was critical for the control of chemical homogeneity within the precursors. TheYAG nanopowders were less-aggregated and better-dispersed. The luminescent properties wereexamined and discussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.429.pdf
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