反应烧结制备AlON透明陶瓷

无机材料学报, 2011, 26(5): 499-502. doi: 10.3724/SP.J.1077.2011.00499

反应烧结制备AlON透明陶瓷

袁贤阳 ^1, , 张芳 ^2, , 刘学建 ^3, , 张昭 ^4, , 王士维 ^5,

1.中国科学院,研究生院,北京100864;中国科学院,上海硅酸盐研究所,上海,200050

2.中国科学院,上海硅酸盐研究所,上海,200050

3.中国科学院,上海硅酸盐研究所,上海,200050

4.中国科学院,上海硅酸盐研究所,上海,200050

5.中国科学院,上海硅酸盐研究所,上海,200050

基金项目: 国家自然科学青年基金(50802106)

关键词：反应烧结 , AlON , MgO , Y2O3

Fabrication of Transparent AlON Ceramics by Solid-state Reaction Sintering

γ-AlON透明陶瓷具有优良的光学和力学性能,可望代替蓝宝石单晶用做红外窗口和透明装甲.采用反应烧结法制备AlON透明陶瓷,探索了烧结助剂以及保温时间对AlON陶瓷致密化的影响.通过X射线衍射和扫描电镜分析了陶瓷烧结体的物相及显微结构,利用分光光度计测试了透明陶瓷的直线透过率.结果表明:和单掺的MgO或Y2O3相比,以MgO和Y2O3共掺作为烧结助剂能够更好地促进AlON的致密化.在保持Y2O3添加量为0.08wt%的情况下,样品的透过率随着MgO添加量的增加而明显提高.添加0.08 wt%Y2O3+1wt%MgO作为烧结助剂的样品在1950℃保温12h后透过率(600nm处)达到约60%.

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反应烧结制备AlON透明陶瓷

Fabrication of Transparent AlON Ceramics by Solid-state Reaction Sintering

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