激光与光电子学进展, 2018, 55 (11): 111602, 网络出版: 2019-08-14
YAG∶Ce 3+荧光粉制备陶瓷的低温烧结与性能 下载: 780次
Low-Temperature Sintering and Properties of Ceramics Fabricated from YAG∶Ce
3+ Phosphor Powder
图 & 表
图 3. YAG∶Ce3+粉末的SEM图。(a)原始粉末;(b)球磨处理后粉末;(c)包覆后粉末
Fig. 3. SEM images of YAG∶Ce3+ phosphor powder. (a) Original particles; (b) particles after ball milling; (c) particles after coating
图 4. YAG∶Ce3+荧光粉包覆后的紫外-可见吸收光谱
Fig. 4. UV-Vis absorption spectra of coated YAG∶Ce3+ phosphor powder
图 6. YAG∶Ce3+荧光粉颗粒TEOS包覆前后球形接收面的光照图。(a) TEOS包覆前;(b) TEOS包覆后
Fig. 6. Light illumination on spherical receiving surfaces of YAG∶Ce3+ phosphor powder particles before and after coating. (a) After TEOS coating; (b) before TEOS coating
图 7. 460 nm蓝光激发YAG∶Ce3+陶瓷的光效图。(a)未激发状态;(b)激发状态
Fig. 7. Light mapping of YAG∶Ce3+ ceramics excited by 460 nm blue light. (a) Non-excited state; (b) excited state
图 9. 包覆不同量TEOS的YAG∶Ce3+荧光粉在1475~1625 ℃烧结5 h后样品的致密度
Fig. 9. Relative densities of YAG∶Ce3+ ceramics with different amounts of TEOS after inserting at 1475-1625 ℃ for 5 h
图 10. YAG在1575 ℃烧结5 h的微观组织形貌。(a)包覆2% TEOS前;(b)包覆2% TEOS后
Fig. 10. Micro-morphologies of YAG ceramics after inserting at 1575 ℃ for 5 h. (a) Before coated with 2% TEOS; (b) after coated with 2% TEOS
图 11. 不同掺杂下YAG陶瓷在1400~1500 ℃温度范围烧结的致密度
Fig. 11. Relative densities of YAG ceramics sintered at 1400-1500 ℃ under different doping conditions
图 12. 不同温度和掺杂下烧结的YAG陶瓷的微观组织形貌。(a)掺杂CuO-TiO2,1450 ℃;(b)掺杂CuO,1475 ℃
Fig. 12. Micro-morphologies of YAG ceramics sintered at different temperatures and and at different doping. (a) Cuo-TiO2 doped, 1450 ℃; (b) CuO doped, 1475 ℃
图 13. 在不同温度下烧结5 h后样品的洛氏硬度
Fig. 13. Rockwell hardness of samples after sintering at different temperatures for 5 h
图 14. 在不同温度下烧结5 h后样品的断裂韧性
Fig. 14. Fracture toughness of samples after sintering at different temperatures for 5 h
图 15. 掺杂2% CuO的YAG陶瓷的洛氏硬度及断裂韧性
Fig. 15. Rockwell hardness and fracture toughness of YAG ceramics doped with 2% CuO
表 1TEOS包覆YAG∶Ce3+荧光粉颗粒的模型尺寸参数与物理属性[29-32]
Table1. Model size parameters and physical properties of TEOS-coated YAG∶Ce3+ phosphor powder particles[29-32]
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表 2粉料粒度及烧结特性
Table2. Particle size and sintering properties of powder
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谢小彤, 朱海涛, 刘贺, 何钦江, 傅仁利. YAG∶Ce 3+荧光粉制备陶瓷的低温烧结与性能 [J]. 激光与光电子学进展, 2018, 55(11): 111602. Xiaotong Xie, Haitao Zhu, He Liu, Qinjiang He, Renli Fu. Low-Temperature Sintering and Properties of Ceramics Fabricated from YAG∶Ce 3+ Phosphor Powder [J]. Laser & Optoelectronics Progress, 2018, 55(11): 111602.