镍基SrAl_(2)O_(4):Yb^(2+)、Re^(3+)稀土光致储能复合镀层的制备及表征  

Preparation and Characterization of Ni-Based SrAl_(2)O_(4):Yb^(2+),Re^(3+)Rare Earth Photoluminescence Energy Storage Composite Coatings

作　　者：付以嘉 傅新广 候锐峰 FU Yi-jia;FU Xin-guang;HOU Rui-feng(Department of Physics,Beijing Normal University,Beijing 100875,China;Avic Shaanxi Baocheng Aviation Instrument Co.,Ltd.,Baoji 721006,China)

机构地区：[1]北京师范大学物理系,北京100875 [2]航空工业陕西宝成航空仪表有限责任公司,陕西宝鸡721006

出　　处：《材料保护》2021年第11期48-52,68,共6页Materials Protection

摘　　要：为了自敏监测镀层在耐腐蚀或耐磨等使用工况下的完整性,在低应力氨基磺酸盐镀镍液中添加SrAl_(2)O_(4):Yb^(2+)、Re^(3+)稀土光致储能粉颗粒,电沉积制备了低应力光致储能复合镀层。采用扫描电镜(SEM)、能谱(EDS)、X射线衍射(XRD)、图像亮度计、荧光测厚仪、热震法等对镀层形貌结构、成分及分布、体积分数、厚度、结合力及光学性能进行表征。结果表明:添加1.6 g/L光致储能粉,在1 A/dm^(2)低电流密度等条件下,可获得光致储能粉体积分数为76%的复合镀层。镀层表面为无光的亮灰色、较粗糙,光致储能粉颗粒较均匀密集地镶嵌在镍镀层中,局部出现节瘤状。激发后表面发出点状黄绿色光,主波长为587.1 nm,余辉亮度为0.0382 cd/m^(2)、余辉时间为30 min,具有一定的余辉特性。In order to self-sensitively monitor the integrity of the coating under the service conditions of corrosion resistance or wear resistance,low stressed photoluminescence energy storage composite coatings were electrodeposited in low stressed nickel sulfamate plating solution by adding SrAl_(2)O_(4):Yb^(2+),Re^(3+)rare earth photoluminescence energy storage powder particles.The morphological structure,composition and distribution,volume percentage,thickness,adhesion and optical properties of the coating were characterized by scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),X-ray diffraction(XRD),image luminometer,fluorescence thickness gauge and thermal shock method.The results showed that the composite coating with 76%volume fraction of photo energy storage powder could be obtained by adding 1.6 g/L photo energy storage powder at 1 A/dm^(2) low current density.The surface of the coating was bright gray with no luster and rough relatively,and the photoluminescence energy storage particles were uniformly and densely embedded in the nickel coating,accomplished with knots in local regions.Moreover,the excited surface emitted a point-like yellow-green light with the main wavelength of 587.1 nm,the afterglow brightness of 0.0382 cd/m^(2) and the afterglow time of 30 min,which presented a certain afterglow characteristic.

关 键 词：低应力 氨基磺酸盐镀镍 稀土光致储能粉SrAl_(2)O_(4):Yb^(2+)、Re^(3+) 复合镀层 余辉亮度 余辉时间 

分 类 号：TQ153.2[化学工程—电化学工业]