硅酸盐学报2017，Vol.45Issue(3)：371-377,7.DOI:10.14062/j.issn.0454-5648.2017.03.08
镍离子掺杂对铝酸镧红外辐射性能的影响
Effect of Ni3+ Doping on Infrared Radiation Properties of Lanthanum Aluminate
摘要
Abstract
A Ni ion doped LaAlO3 ceramic with a high infrared emissivity was synthesizedviaa sol–gel process. The result shows that Ni ion doping can improve the performance of infrared absorption of LaAlO3 ceramic. LaAl0.6Ni0.4O2.89 powder prepared has the superior absorption properties when the Ni ion doping amount is 40% (in mole fraction). The emissivity is 0.93 in the spectral region of 3–5μm when aluminum sol is used as a binder. The improvement of LaAlO3 ceramic infrared emissivity is due to Ni ion doping. Ni ion dopes into the LaAlO3 lattice, introducing Ni3+and Ni2+ impurity levels in the band gap, and producing the activation energy of only 0.03 eV Ni3+?Ni2+ small polar on absorption band. The absorption by small polar on hopping can enhance the performance of infrared radiation LaAlO3. This novel material with a high infrared emissivity shows promising applications for energy-saving in the field of thermal processing equipment.关键词
铝酸镧/涂层/发射率/红外辐射/节能Key words
lanthanum aluminate/coating/emissivity/infrared radiation/energy-saving分类
化学化工引用本文复制引用
卢卫华,刘鹏飞,韩召,胡振,陈义祥,李江涛..镍离子掺杂对铝酸镧红外辐射性能的影响[J].硅酸盐学报,2017,45(3):371-377,7.基金项目
科技部国际科技合作项目(2014DFR51010) （2014DFR51010）
国家自然科学基金项目(51372255) （51372255）
钢铁冶金新技术国家重点实验室开放研究项目 （）
安徽工业大学SRTP项目. （）
