反应烧结制备AlON透明陶瓷

doi:10.3724/SP.J.1077.2011.00499

无机材料学报 ›› 2011, Vol. 26 ›› Issue (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^1,2, 张芳², 刘学建², 张昭², 王士维²

(1. 中国科学院研究生院, 北京100864; 2. 中国科学院上海硅酸盐研究所, 上海200050)

收稿日期:2010-06-29 修回日期:2010-10-26 出版日期:2011-05-20 网络出版日期:2011-06-07
作者简介:袁贤阳(1982-), 男, 博士研究生. E-mail: yxyang@mail.sic.ac.cn
基金资助:
国家自然科学青年基金 (50802106)

Fabrication of Transparent AlON Ceramics by Solid-state Reaction Sintering

YUAN Xian-Yang^1,2, ZHANG Fang², LIU Xue-Jian², ZHANG-Zhao², WANG Shi-Wei²

(1. Graduate University of Chinese Academy of Sciences, Beijing 100864, China; 2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China)

Received:2010-06-29 Revised:2010-10-26 Published:2011-05-20 Online:2011-06-07
Supported by:
National Natural Science Foundation of China (50802106)

摘要/Abstract

摘要： 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%.

关键词: 反应烧结, AlON, MgO, Y₂O₃

Abstract: Transparent AlON ceramic which exhibit excellent optical and mechanical properties is a potential alternative to sapphire for the application of IR windows and armor. In this work, transparent AlON ceramics were successfully prepared by solid-state reaction sintering. The effects of sintering aids and holding time on densification of AlON ceramics were investigated. The phase composition and microstructure of the ceramics were characterized by XRD and SEM, respectively. In-line transmittance of the ceramics was measured by spectrophotometer. The results show that co-doping of MgO and Y₂O₃ as sintering aid is more effective to enhance densification of AlON ceramics than the doping of MgO or Y₂O₃. With doping level of 0.08wt%Y₂O₃, the transmission of ceramics increases with the increase of MgO content. Co-doped with 0.08 wt% Y₂O₃and 1wt% MgO, the ceramics (1mm thick) sintered at 1950℃ for 12h in N2 atmosphere have an in-line transmission of 60% (at 600nm).

Key words: solid-state reaction sintering, AlON, MgO, Y₂O₃

中图分类号:

TQ174

袁贤阳, 张芳, 刘学建, 张昭, 王士维. 反应烧结制备AlON透明陶瓷[J]. 无机材料学报, 2011, 26(5): 499-502.

YUAN Xian-Yang, ZHANG Fang, LIU Xue-Jian, ZHANG-Zhao, WANG Shi-Wei. Fabrication of Transparent AlON Ceramics by Solid-state Reaction Sintering[J]. Journal of Inorganic Materials, 2011, 26(5): 499-502.

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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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