摘要
彩色氧化锆陶瓷具有鲜艳色彩、高折射率、耐磨损、耐腐蚀及对人体无毒等优点,被广泛应用于电子、装饰等领域。本研究采用共沉淀法合成了平均粒径为15.9 nm的立方相Ce:8YSZ纳米粉体。以经过800℃煅烧4 h的粉体为原料,通过两步烧结技术制备了具有高光学透过率和高红色度的Ce:8YSZ透明陶瓷,并系统研究了空气预烧温度对红色Ce:8YSZ透明陶瓷微观结构、直线透过率和色度的影响。当预烧温度从1200℃升高到1300℃时,Ce:8YSZ陶瓷的平均晶粒尺寸从0.3μm增大到2.2μm,同时相对密度从87.2%增加到97.1%。经过1275℃空气预烧2 h并结合1700℃热等静压烧结3 h所得的Ce:8YSZ透明陶瓷表现出最佳的光学质量和最大的红色度值,在700 nm处的直线透过率为47.6%,红色度为52.0。
Color zirconia ceramics are widely used in electronics and decoration fields due to their bright colors,high refractive index,wear resistance,corrosion resistance,and non-toxicity to the human body.Cubic cerium doped 8%yttria mol percent stabilized zirconia(Ce-doped 8YSZ)nano-powder with average particle size of 15.9 nm was synthesized by co-precipitation method.Using the powder calcined at 800℃for 4 h as starting material,red zirconia transparent ceramics with high optical transparency and high redness value were prepared by two-step sintering method.Influences of pre-sintering temperature on microstructure,in-line transmittance and color performance of the red Ce-doped 8YSZ ceramics were studied.As the pre-sintering temperature increases from 1200℃to 1300℃,average grain size of the ceramics increases from 0.3μm to 2.2μm and the relative density increases from 87.2%to 97.1%.The Ce-doped 8YSZ ceramics pre-sintered at 1275℃for 2 h and hot isostatic pressed(HIP)at 1700℃for 3 h show the best in-line transmittance of 47.6%at 700 nm and the highest redness of 52.0.
作者
刘强
王倩
陈鹏辉
李晓英
章立轩
谢腾飞
李江
LIU Qiang;WANG Qian;CHEN Penghui;LI Xiaoying;ZHANG Lixuan;XIE Tengfei;LI Jiang(School of Material Science and Engineering,Jiangsu University,Zhenjiang 212013,China;Key Laboratory of Transparent Opto-Functional Inorganic Materials,Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 201899,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2022年第8期911-917,共7页
Journal of Inorganic Materials
基金
National Key R&D Program of China(2021YFE0104800)
Key Research Project of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-JSC022)。
