溶胶-凝胶燃烧法制备SmBO3粉体的工艺条件及其光吸收性能

›› 2008, Vol. 8 ›› Issue (5): 1008-1012.

溶胶-凝胶燃烧法制备SmBO3粉体的工艺条件及其光吸收性能

何伟韩朋德沐磊王丽熙张其土

南京工业大学材料科学与工程学院南京工业大学材料科学与工程学院南京工业大学材料科学与工程学院南京工业大学材料科学与工程学院南京工业大学材料学院

收稿日期:2008-05-08 修回日期:2008-06-25 出版日期:2008-10-20 发布日期:2008-10-20
通讯作者: 张其土

Conditions and Optical Absorbency of SmBO3 Powder Synthesized by Sol-Gel Combustion Method

HE Wei HAN Peng-de MU Lei WANG Li-xin ZHANG Qi-tu

College of Materials Science and Engineering, Nanjing University of Technology College of Materials Science and Engineering, Nanjing University of Technology College of Materials Science and Engineering, Nanjing University of Technology College of Materials Science and Engineering, Nanjing University of Technology College of Material Science and Engineering, Nanjing University of Technology

Received:2008-05-08 Revised:2008-06-25 Online:2008-10-20 Published:2008-10-20
Contact: ZHANG Qi-tu

摘要/Abstract

摘要： 研究了溶胶-凝胶燃烧法制备SmBO3前驱体过程中的各种影响因素，考察了煅烧温度及煅烧时间对所合成的SmBO3粉体光吸收性能的影响. 结果表明，当加热温度为80℃、H2O/(Sm+B)摩尔比为30、pH值为2、柠檬酸/(Sm+B) 摩尔比为1:1时获得的凝胶在180℃下发生稳定的自燃烧反应，得到白色蓬松的前驱体. 前驱体经750℃煅烧2 h后得到的SmBO3粉体平均颗粒尺寸为100 nm. 在1.05~1.15 mm波长范围，SmBO3粉体对光存在较强的吸收，在1.07 mm波长附近反射率达最低值，约为0.41%，而在1.06 mm波长处反射率约为0.6%.

关键词: 溶胶-凝胶燃烧法, SmBO3, 激光防护, 近红外吸收剂

Abstract: The influential factors of precursor for preparation of SmBO3 powder by sol-gel combustion method were investigated. The effects of calcination temperature and time on optical absorbency of SmBO3 powder were examined. The results showed that when heating temperature was 80℃, molar ratio of H2O to the sum of Sm and B 30, pH 2 and molar ratio of citric acid to the sum of Sm and B 1:1, the gel combusted steadily at 180℃, and then changed into white fluffy precursor. SmBO3 powder was obtained when the precursor calcined at 750℃ for 2 h, with an average particle size of 100 nm. There was strong absorption in 1.05~1.15 mm wavelength range, and the reflectivity of SmBO3 powder reached a minimum value of about 0.41% at 1.07 mm wavelength. It was about 0.6% at 1.06 mm.

Key words: sol-gel combustion method, SmBO3, laser protection, near infrared absorbent

中图分类号:

TQ133.3

何伟韩朋德沐磊王丽熙张其土. 溶胶-凝胶燃烧法制备SmBO3粉体的工艺条件及其光吸收性能[J]. , 2008, 8(5): 1008-1012.

HE Wei HAN Peng-de MU Lei WANG Li-xin ZHANG Qi-tu. Conditions and Optical Absorbency of SmBO3 Powder Synthesized by Sol-Gel Combustion Method[J]. , 2008, 8(5): 1008-1012.