期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 379, 期 1-2, 页码 347-350出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2004.03.014
关键词
yttrium aluminum garnet; co-precipitation; laser material; nano-sized powder; dispersant
Nd3+ doped yttrium aluminum garnet Y3Al5O12 (YAG) nano-sized powders were prepared by a co-precipitation method using hydroxypropyl cellulose (HPC) as dispersant. The formation process and structure of the as-prepared sample were investigated by means of TG-DTA, XRD, IR, and TEM. It has been found that the YAG powders were amorphous up to 700 degreesC and transformed into pure phase YAG crystallite at 900 degreesC for 2 h, because of the uniformly distribution of Al and Y elements. The size of YAG powder is about 30 nm in diameter and mono-disperse in the presence of HPC. Optical absorption and emission spectra of nano-crystallites versus Nd3+ concentration and sintering temperature were also studied. (C) 2004 Elsevier B.V. All rights reserved.
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