摘要
采用络合燃烧法制备反尖晶石型Co_(0.6)Zn_(0.4)Al_(0.8)Cr_(1.2-x)Sm_xO_4绿色纳米陶瓷颜料。通过X-射线衍射仪(XRD)、差热-热重分析仪(TG-DTA)、扫描电子显微镜(SEM)、高分辨透射电子显微镜(HRTEM)、能谱仪(EDS)、紫外-可见漫反射(UV-Vis DRS)等分析手段确定颜料的物相、结构、粒径、组成以及反射光谱。结果表明:Zn^(2+)、Cr^(3+)与Sm^(3+)的引入,改变了CoAl_2O_4尖晶石结构中四面体和八面体的离子占位状况,使尖晶石结构的CoAl_2O_4钴蓝颜料改性,得到平均粒径为(10~15)nm的反尖晶石结构绿色纳米颜料Co_(0.6)Zn_(0.4)Al_(0.8)Cr_(1.2-x)Sm_xO_4;随着Sm^(3+)含量的增加,颜料从蓝绿色向黄绿色过渡。
An inverse spinel green nano-ceramic pigment Co(0.6)Zn(0.4)Al(0.8)Cr(1.2-x)SmxO4 was synthesized by complex combustion method. The X-ray diffraction(XRD),thermogravimetric analyzer(TG-DTA),scanning electron microscopy(SEM),high resolution transmission electron microscopy(HRTEM),energy dispersive spectroscopy(EDS),UV-Vis diffuse reflectance(UV-Vis DRS)spectroscopy were used to determine the pigment phase,structure,particle size,composition,and reflection spectra. The results show that the introduction of Zn^(2+),Cr^(3+) and Sm^(3+) can change the ionic framework in the tetrahedral and octahedral spinel CoAl2O4,and the average particle size of inverse spinel Co(0.6)Zn(0.4)Al(0.8)Cr(1.2-x)SmxO4 is in the range of(10-15)nm.Their color will be changed from blue to green with the increase of Sm3+content.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2017年第6期92-95,共4页
Ordnance Material Science and Engineering
关键词
反尖晶石型
纳米陶瓷颜料
掺杂
inverse spinel type
nano-ceramic pigment
doping