A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders
文献类型：期刊论文
| 作者 | L. Yang ; T. C. Lu ; H. Xu ; W. Zhang ; B. Y. Ma |
| 刊名 | Journal of Applied Physics
 |
| 出版日期 | 2010 |
| 卷号 | 107期号:6 |
| 关键词 | aluminium compounds calcination differential scanning calorimetry Fourier transform spectra infrared spectra nanofabrication nanoparticles particle size sol-gel processing solvent effects thermal conductivity transmission electron microscopy X-ray diffraction yttrium compounds yag-tb phosphor luminescence properties combustion process ce phosphor ceramics laser photoluminescence microstructure nanoparticles performance |
| ISSN号 | 0021-8979 |
| 中文摘要 | Yttrium aluminum garnet (YAG) nanopowders were synthesized by sol-gel method using aluminum nitrate, yttrium nitrate, and citric acid as starting materials, de-ionized water, ethanol, and ethylene glycol as solvents, respectively. The phase formation process, state of particle size distribution (PSD), compositions, morphological characteristics, and thermal behavior of the powders were investigated by means of x-ray diffractometry, PSD, Fourier transform infrared, transmission electronic microscope, and thermogravimetry-differential scanning calorimetry. Results indicate that the formation and characteristics of precursor gel and YAG powder, such as the rate of gelation, average particle size, and powder agglomerate state, strongly depend on the stoichiometric amount of citric acid, the solvent composition, and the precalcination process. Highly crystalline, well-dispersed YAG nanopowder was obtained by calcining at 800 degrees C for 2 h in the presence of citric acid to nitrate ratio of 3, ethanol solvent, and precalcination process. According to the analysis of experimental results, sol-gel chemistry, DLVO theory, and steric effect, the effects of stoichiometric amount of citric acid, solvent composition, and precalcination process on the formation and characteristics of precursor gel and YAG powder have been discussed. Meanwhile, the overall synthesis mechanism in sol-gel method has been suggested. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31639]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. Yang,T. C. Lu,H. Xu,et al. A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders[J]. Journal of Applied Physics,2010,107(6). |
| APA | L. Yang,T. C. Lu,H. Xu,W. Zhang,&B. Y. Ma.(2010).A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders.Journal of Applied Physics,107(6). |
| MLA | L. Yang,et al."A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders".Journal of Applied Physics 107.6(2010). |
入库方式： OAI收割
来源：金属研究所
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