以硝酸钇、硝酸镁、乙酸镁为原料,采用微波诱导燃烧法合成了体积比50:50的MgO-Y2O3纳米粉体,并研究了粉体的烧结性能.采用DSC-TGA、XRD、SEM、BET、IR等手段对粉体进行了分析表征.研究表明,在500 W微波功率下合成的粉体,经过600℃煅烧2h,结晶性良好,呈现均匀球状,粒度尺寸在30 ～50nm之间,比表面积为35.6m2/g.粉体经过200 MPa压力下等静压成型后,在1300℃温度下保温2h,样品相对密度可达95％.
参考文献
| [1] | Chigozie K. Muoto;Eric H. Jordan;Maurice Gell.Effects of Precursor Chemistry on the Structural Characteristics of Y_2O_3-MgO Nanocomposites Synthesized by a Combined Sol-Gel/Thermal Decomposition Route[J].Journal of the American Ceramic Society,20112(2):372-381. |
| [2] | Jiwen Wang;Dianying Chen;Eric H. Jordan;Maurice Gell.Infrared-Transparent Y_2O_3–MgO Nanocomposites Using Sol–Gel Combustion Synthesized Powder[J].Journal of the American Ceramic Society,201011(11):3535-3538. |
| [3] | Agnes Dupont;A. Largeteau;Claude Parent.Influence of the yttria powder morphology on its densification ability[J].Journal of the European Ceramic Society,200512(12):2097-2103. |
| [4] | 任书霞;杨丹.溶胶-凝胶法在纳米粉体制备中的应用[J].中国粉体技术,2006(1):48-50. |
| [5] | D. A. Jones;T. P. Lelyveld;S. D. Mavrofidis;S. W. Kingman;N. J. Miles.Microwave heating applications in environmental engineering-a review[J].Resources, Conservation and Recycling,20022(2):75-90. |
| [6] | Seema Verma;P. A. Joy;Y. B. Khollam.Synthesis of nanosized MgFe_2O_4 powders by microwave hydrothermal method[J].Materials Letters,20046(6):1092-1095. |
| [7] | E.D. Sherly;J. Judith Vijaya;N. Clament Sagaya Selvam.Microwave assisted combustion synthesis of coupled ZnO-ZrO_2 nanoparticles and their role in the photocatalytic degradation of 2,4-dichlorophenol[J].CERAMICS INTERNATIONAL,20144(4):5681-5691. |
| [8] | R.V. Mangalaraja;J. Mouzon;P. Hedstrom.Microwave assisted combustion synthesis of nanocrystalline yttria and its powder characteristics[J].Powder Technology: An International Journal on the Science and Technology of Wet and Dry Particulate Systems,20093(3):309-314. |
| [9] | I. Ganesh;R. Johnson;G.V.N. Rao.Microwave-assisted combustion synthesis of nanocrystalline MgAl_2O_4 spinel powder[J].Ceramics International,20051(1):67-74. |
| [10] | Jianguo Zhou;Fengying Zhao;Yingling Wang;Yan Zhang;Lin Yang.Size-controlled synthesis of ZnO nanoparticles and their photoluminescence properties[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,20070(0):195-197. |
| [11] | Chigozie K. Muoto;Eric H. Jordan;Maurice Gell;Mark Aindow.Microstructural Characteristics of Y_2O_3-MgO Composite Coatings Deposited by Suspension Plasma Spray[J].Journal of Thermal Spray Technology,20126(6):1309-1321. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%