核壳纳米粉体制备Y2O3-MgO复相陶瓷
Y2O3-MgO Composite Nano-ceramics Prepared from Core-shell Nano-powders
摘要
Abstract
Y2O3-MgO composite nano-ceramics are regarded as a significant candidate of infrared transparent ce-ramics on account of excellent optical and mechanical properties.Nevertheless,a huge challenge remains regarding the critical optical scattering and needless absorption in the near-and mid-infrared bands,which hinders its applica-tions in extreme harsh environments.In present work,Y2O3-MgO core-shell structure nano-powders were prepared via urea precipitation method before that Y2O3-MgO composite nano-ceramics were prepared under spark plasma sin-tering.Therrnogravimetric and differential scanning calorimetry (TG/DSC),X-ray diffraction and scanning electron microscope were performed to analyze as prepared core-shell structure nano-powders and composite nano-ceramics.The size of Y2O3-MgO core-shell structure nano-powders is about 250 nm,and average grain size of the prepared ce-ramics is approximately 360 nm.The transmittance is 57％ at 6 μm,and the Vickers hardness is 820 HV.The pow-der synthesis method accomplished in present work offers a novel solution for composite nano-ceramics,which easily regulate particle size and proportion of different components.关键词
Y2O3-MgO复相纳米陶瓷/核壳结构纳米粉体/尿素沉淀法/放电等离子烧结Key words
Y2O3-MgO composite nano-ceramics/core-shell structure nano-powder/urea precipitation method/spark plasma sintering分类
数理科学引用本文复制引用
江宏涛,秦海明,冯少尉,陈红兵,蒋俊..核壳纳米粉体制备Y2O3-MgO复相陶瓷[J].发光学报,2021,42(7):997-1006,10.基金项目
国家重点研究发展项目(2017YFC0111602,2016YFC0104502) （2017YFC0111602,2016YFC0104502）
国家自然科学基金(12074393) （12074393）
中国科学院福建省创新研究院(FJCXY18040203) （FJCXY18040203）
浙江省重点研究开发项目(2021C01024) （2021C01024）
浙江省自然科学基金(LQ21E020007) （LQ21E020007）
宁波市自然科学基金(202003N4346) （202003N4346）
内蒙古自治区科技计划(2019GG263)资助项目Supported by National Key Research and Development Program of China(2017YFC0111602,2016YFC0104502) （2019GG263）
National Natu-ral Science Foundation of China(12074393) （12074393）
Fujian Institute of Innovation,Chinese Academy of Sciences(FJCXY18040203) （FJCXY18040203）
Key Research and Development Program of Zhejiang Province (2021C01024) （2021C01024）
Zhejiang Provincial Natural Science Foundation(LQ21E020007) （LQ21E020007）
Ningbo Municipal Natural Science Foundation(202003N4346) （202003N4346）
Science and Technology Plan of The Inner Mongolia Autonomous Region (2019GG263) （2019GG263）
