| A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders | |
| L. Yang; T. C. Lu; H. Xu; W. Zhang; B. Y. Ma | |
| 2010 | |
| Source Publication | Journal of Applied Physics
 |
| ISSN | 0021-8979 |
| Volume | 107Issue:6 |
| Abstract | 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. |
| description.department | [yang, lin; lu, tiecheng; zhang, wei; ma, benyuan] sichuan univ, minist educ, dept phys, chengdu 610064, peoples r china. [yang, lin; lu, tiecheng; zhang, wei; ma, benyuan] sichuan univ, minist educ, key lab radiat phys & technol, chengdu 610064, peoples r china. [lu, tiecheng] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. [xu, hui] sipo, patent examinat cooperat ctr, beijing 100190, peoples r china.;lu, tc (reprint author), sichuan univ, minist educ, dept phys, chengdu 610064, peoples r china;lutiecheng@vip.sina.com |
| Keyword | 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 |
| URL | 查看原文 |
| WOS ID | WOS:000276210800114 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/31639 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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). |
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