以Dy2O3、Er2O3、Al2O3氧化物为原料,利用固相合成法在1500～1700 ℃下合成了DyxEr3-xAl5O12(x=0、1、2、3)稀土铝酸盐材料.分析了其物相组成并初步探讨了其合成机理.结果表明:在1650～1700 ℃高温下,合成的产物完全转化为石榴石相,大量的稀土元素的引入不会对石榴石结构稳定性产生影响;随材料中Dy3+的浓度增加,随着x值增大,即材料中Dy3+的浓度增加,DyxEr3-xAl5O12石榴石结构的晶格常数增大.
参考文献
| [1] | Uwe Schulz;Christoph Leyens;Klaus Fritscher;Manfred Peters;Bilge Saruhan-Brings;Odile Lavigne;Jean-Marc Dorvaux;Martine Poulain;Remy Mevrel;Michaeel Caliez .Some recent trends in research and technology of advanced thermal barrier coatings[J].Aerospace science and technology,2003(1):73-80. |
| [2] | 周宏明,易丹青,余志明,肖来荣.热障涂层的研究现状与发展方向[J].材料导报,2006(03):4-8. |
| [3] | Nitin P.Padture;Paul G.Klements .Low thermal conductivity in garnets[J].Journal of the American Ceramic Society,1997(4):1018-1020. |
| [4] | 李长青,左洪波,张明福,孟松鹤,韩杰才,丁志立.固相反应法制备透明多晶YAG陶瓷[J].硅酸盐学报,2006(08):979-984. |
| [5] | Y. J. Su;R. W. Trice;K. T. Faber .Thermal Conductivity, Phase Stability, and Oxidation Resistance of Y_3Al_5O_(12) (YAG)/Y_2O_3-ZrO_2 (YSZ) Thermal-Barrier Coatings[J].Oxidation of Metals,2004(3/4):253-271. |
| [6] | Choe JY.;Blomquist SM.;Kirchner KW.;Forsythe EW. Morton DC.;Ravichandran D. .Cathodoluminescence study of novel sol-gel derived Y3-xAl5O12 : Tb-x phosphors[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2001(2):119-128. |
| [7] | Xia GD;Zhou SM;Zhang JJ;Wang SM;Wang H;Xu J .Sol-gel combustion synthesis and luminescence Of Y4Al2O9 : Eu3+ nanocrystal[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(37/39):2979-2982. |
| [8] | Mathur S;Shen H;Veith M;Rapalaviciute R;Agne T .Structural and optical properties of highly Nd-doped yttrium aluminum garnet ceramics from alkoxide and glycolate precursors[J].Journal of the American Ceramic Society,2006(6):2027-2033. |
| [9] | Jun-ji Zhang;Jin-wei Ning;Xue-jian Liu;Yu-bai Pan;Li-ping Huang .Synthesis of ultrafine YAG:Tb phosphor by nitrate-citrate sol-gel combustion process[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2003(7):1249-1256. |
| [10] | 王博宇,徐进章,张志华.Y3Al5O12：Tb3+粉体的制备及其发光特性[J].硅酸盐学报,2008(04):510-514. |
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%