以碳酸氢铵为沉淀剂采用共沉淀法和添加分散剂的方式,获得具有高烧结活性的碳酸盐前驱体,这种前驱体在较低的温度下烧结即可转变成相.同时借助DTA-TG、IR、XRD和TEM等测试手段对前驱体和YAG粉体进行表征.结果表明:在分散剂存在的情况下,此800℃左右煅烧2h前驱物直接转变为纯的YAG相,而无其它的杂质相,所得的YAG粉体的颗粒尺寸约20nm,是单分散的形貌近似球形的.此外不同温度下粉体的荧光性质表明,随着烧结温度的提高发光强度有所增加.
参考文献
[1] | Ikesue A .[J].Journal of the American Ceramic Society,1997,80(06):1571. |
[2] | Skita M;Haneda H;Yanagitani T et al.[J].Journal of Applied Physics,1990,67(01):453. |
[3] | With G;van Dijk H J A .[J].Materials Research Bulletin,1984,19:1669. |
[4] | Veitch C D .[J].Journal of Materials Science,1991,26:6527. |
[5] | Ikesue A.;Kamata K.;Furusato I. .FABRICATION OF POLYCRYSTALLINE, TRANSPARENT YAG CERAMICS BY A SOLID-STATE REACTION METHOD[J].Journal of the American Ceramic Society,1995(1):225-228. |
[6] | Veith M;Mathur S.[J].Journal of Materials Chemistry,1999(09):30699. |
[7] | Vaqueiro P;Lopequea M A .[J].Chemistry of Materials,1997,9:2836. |
[8] | Roy S;Wang L et al.[J].Materials Letters,1999,39:138. |
[9] | Hakuta Y;Seino K.[J].Journal of Materials Chemistry,1999(09):2671. |
[10] | Park Ji-yong;Seong-Geun Oh et al.[J].Materials Letters,2002,56:429. |
[11] | Matsubara I;Paranthaman M et al.[J].Materials Research Bulletin,2000,35:217. |
[12] | Wang Hongzhi;Gao Lian;Niihara K .[J].Materials Science and Engineering,2000,A288:1. |
[13] | Yamaguchi O;Takeoka K;Hayashida A .[J].Journal of Materials Science Letters,1990,101:10. |
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