学术
掺镱钇铝石榴石激光透明陶瓷超细粉体的研究
李云辉[1,2] 张伟娜[2] 刘景和[2] 周永昶[1] 姜道新[2]
[1]吉林大学地球探测科学与技术学院,吉林长春130026 [2]长春理工大学材料与化工学院,吉林长春130022
摘 要:
钇铝石榴石（YAG）透明陶瓷是制造大功率、发光效率高的小型激光器的良好材料．而制备掺镱钇铝石榴石（Yb：YAG）透明陶瓷的关键在于制备出粒度均匀、化学纯度高、分散性好的YAG超细粉体．本文以Y2O3、Yb2O3A12（NO3）3·9H2O为原料，以Yb：Y：Al=0．06：2．94：5的配比掺杂2％的Yb取代Y，配成硝酸盐溶液，用NH4HCO3作为沉淀剂，用碳酸盐共沉淀法制备Yb：YAG前驱超细粉体，并用TG-DTA、XRD、IR、SEM等测试方法对其粉体结构和形貌进行分析．结果表明：在1100℃煅烧过程中，失重约为41％．所得到的Yb：YAG粉体结晶好，烧结性高、纯度较好、形状规则，粒径均匀，均在200-300nm之间．[著者文摘]
文章出处:
《材料科学与工艺》-2005年13卷6期,658 -652-654,658页
分 类 号:
文献标识码:
A
文章编号:
1005-0299（2005）06-0652-03
Synthesis and characteristics of ytterbium-doped yttrium-aluminum garnet super-fined powders for laser transparent ceramics
LI Yun-hui, ZHANG Wei-na, LIU Jing-he, ZHOU Yong-chang, JIANG Dao-xin（1.College of Geo -Exploration and Technology, Jilin University, Changchun 130026, China; 2. Institute of Materials and Chemical Engineering, Changchun University of Science and Technology, Changchun 130022, China）
Abstract:
YAG transparent ceramics are good materials to make a small laser apparatus of larger power and strong luminescence efficiency. The key problem in making Yb：YAG transparent ceramics is to produce Yb： YAG super- fine powders having regular shape, high chemistry purity, and good dispersion. Yb：YAG powders for transparent ceramics are prepared by the co - precipitation method with Y2O3, Yb2O3, and Al2 （NO3）3 · 9H2O, and NH4HCO3 as the precipitator. Ytterbium that has been doped reaches two percent and the proportion is Yb ：Y ： Al = 0.06 ： 2.94 ： 5. TG - DTA ,XRD ,IR and SEM analyses are used to observe the structure and surface morphology of the powder. The results show that the mass loss value is about 41% when calcined at 1100℃ ; the well -crystallized Yb：YAG super -fine powders are obtained with higher sinterability and higher purity. The particle shape is regular with average diameter in the range of 200 ～ 300nm.[著者文摘]
Key words:
yttria; yttrium-aluminum garnet （YAG）; transparent ceramics; co-precipitation
基金资助:
吉林省科技厅基金资助项目（20030326）.
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