| 合成高活性Y2O3和Al2O3超细粉及Nd：YAG透明陶瓷 |
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| 引用本文： | 吕光哲,孙旭东.合成高活性Y2O3和Al2O3超细粉及Nd：YAG透明陶瓷[J].沈阳黄金学院学报,2009(2):106-109. |
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| 作者姓名： | 吕光哲 孙旭东 |
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| 作者单位： | 东北大学材料各向异性与织构教育部重点实验室,沈阳110004 |
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| 基金项目： | 长江学者和创新团队发展计划（IRT0713）资助 |
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| 摘 要： | 分别以Y（NO3）3和氨水、NH4Al（SO4）2.12H2O和碳酸氢铵为原料,采用化学沉淀法与碳酸铝铵分解法合成了高活性、平均粒径分别为39 nm和95 nm的Y2O3和Al2O3超细粉体.以Y2O3,Al2O3超细粉和商用Nd2O3粉体为原料,采用固相反应法,经1 700℃真空烧结15 h,制备了Nd：YAG透明陶瓷.含x（Nd）=1%的YAG陶瓷在可见光区最大透光率约为53%.对YAG陶瓷的烧结过程和显微组织研究表明,Nd的引入明显地促进了陶瓷的烧结,同时晶粒得到细化.
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| 关 键 词： | Nd:YAG透明陶瓷 Y2O3 Al2O3 超细粉 致密化 透光率 |
Synthesis of highly sinterable Y2O3 and Al2O3 ultrafine powders leading to transparent Nd： YAG ceramics |
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| Authors: | LV Guang-zhe SUN Xu-dong |
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| Affiliation: | (Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110004, China) |
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| Abstract: | Highly sinterable ultrafine Y2O3 and Al2O3 powders with average particle sizes of 39 nm and 95 nm, respectively, were synthesized by the chemical precipitation method from Y （ NO3 ） 3 , NH3·H2O, NH4 Al （ SO4 ） 2 ·12H2O and NH4 HCO3. Nd： YAG transparent ceramics were fabricated by the solid - state reaction method using the self-produced Y2O3 and Al2O3 powders and a commercial N~ 03 powder via vacuum -sintering at 1 700 ℃ for 15 h. The maximum linear transmittance of the lat% Nd： YAG transparent ceramic in the visible light range is 53%. The sintering process and microstmcture of the Nd： YAG ceramics were investigated. The results show that the addition of Nd improves significantly the densification of Nd： YAG ceramics, leading to the refinement of grain size. densification ; transmittance ; grain growth |
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| Keywords: | Nd： YAG transparent ceramics Y2O3 Al2O3 |
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