Influence of dopant concentration on the transparent and thermal properties of Nd2O3-doped alumina translucent ceramics
来源期刊：Journal of Rare Earths2017年第9期
论文作者：杨清华 姜本学 陈水林 姜益光 张攀德 毛小建 张龙 王俊
文章页码：883 - 886
摘 要：The transparent and thermal developments of high-purity Al2O3 doped with different levels of Nd2O3 were investigated. Dopant levels ranged from 500–1500 ppm（Nd/Al atomic ratio）. The samples were characterized with X-ray diffraction（XRD）, scanning electron microscopy（SEM）, Raman spectroscopy, transmittance spectroscopy and specific heat measurement. Results revealed that with proper Nd doped, Nd3+ ions solid dissolved in Al2O3 lattice, resulting in small and uniform grain and high bonding vibration, which was beneficial to transparent and thermal properties. With 1000 ppm Nd doped, Al2O3 translucent ceramics showed a total transmittance of 89% and thermal conductivity of 41.7 W/m/K, indicating a potential application as substrate for effective heat dissipation and multi emitting surface in LEDs module.
杨清华1,2,3，姜本学1，陈水林1,2，姜益光1,2，张攀德1,2，毛小建1，张龙1，王俊1
1. Key Laboratory of Materials for High Power Laser Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences2. University of Chinese Academy of Sciences3. College of Materials Science and Engineering China Jiliang University
摘 要：The transparent and thermal developments of high-purity Al2O3 doped with different levels of Nd2O3 were investigated. Dopant levels ranged from 500–1500 ppm（Nd/Al atomic ratio）. The samples were characterized with X-ray diffraction（XRD）, scanning electron microscopy（SEM）, Raman spectroscopy, transmittance spectroscopy and specific heat measurement. Results revealed that with proper Nd doped, Nd3+ ions solid dissolved in Al2O3 lattice, resulting in small and uniform grain and high bonding vibration, which was beneficial to transparent and thermal properties. With 1000 ppm Nd doped, Al2O3 translucent ceramics showed a total transmittance of 89% and thermal conductivity of 41.7 W/m/K, indicating a potential application as substrate for effective heat dissipation and multi emitting surface in LEDs module.
关键词：
