Color thermal stability of white up-conversion luminescent emission in Eu3+/Yb3+ co-doped YOF phosphor

2020 ◽  
Vol 225 ◽  
pp. 117348
Author(s):  
Qi Han ◽  
Yuzhen Zou ◽  
Haoyu Wu ◽  
Yinglin Song ◽  
Yuxiao Wang ◽  
...  
2021 ◽  
Vol 2144 (1) ◽  
pp. 012019
Author(s):  
S V Savushkina ◽  
A M Borisov ◽  
I V Suminov ◽  
E V Vysotina ◽  
A A Ashmarin

Abstract Nanostructured and nanocomposite layers NiCoCrAlY+ ZrO2-7%Y2O3, ZrO2-7% Y2O3+HfO2-9%Y2O3, HfO2-9%Y2O3 with thickness of ∽ 20 μm were formed by low pressure plasma spraying. The structure and composition of the layers have been studied using a scanning electron microscopy, X-ray microanalysis, and XRD analysis. Thermal stability of the coatings has been analyzed using synchronous thermal analysis at temperatures up to 1600 °C. The results of structure and composition analysis of ZrO2-7%Y2O3+HfO2-9%Y2O3 layer suggest the formation ofnanocomposite co-doped regions of the ZrO2-HfO2-Y2O3 solid solution. The layer has greater thermal stability at temperatures up to 1600 ° C and a smaller subgrain size (∽ 33 nm) than for the ZrO2-7% Y2O3 and HfO2-9%Y2O3 layers.


ChemInform ◽  
2015 ◽  
Vol 46 (50) ◽  
pp. no-no
Author(s):  
DeCai Huang ◽  
YouFu Zhou ◽  
WenTao Xu ◽  
Kun Wang ◽  
Zhuguang Liu ◽  
...  

2018 ◽  
Vol 914 ◽  
pp. 73-79
Author(s):  
Chang Cheng Fang ◽  
Qing Rong Yao ◽  
Yong Qiang Xu ◽  
Huai Ying Zhou ◽  
Guang Hui Rao ◽  
...  

To understand the phase composition and improve the magnetic performances of Ce2Fe14B-type alloys, the ribbons of Ce16Fe95-xCoxB8(x=0-4.0) were prepared by melt-spinning at a quench wheel velocity of 40 m/s. The phase composition and magnetic properties of Ce16Fe95-xCoxB8(x=0-4.0) alloys were investigated. XRD results indicated that the main phase existed in the as-spun ribbons is Ce2Fe14B. The amorphous formation ability and thermal stability of as-spun ribbons were enhanced by trace cobalt addition. Co-doped samples had higher Curie temperature compared with bare Ce2Fe14B, which signified that Co atoms could substitute for Fe directly into Ce2Fe14B phase. The corrosion potential of alloys from-1089mV (vs. SCE) to-1077mV (vs. SCE) which indicated that the Co-doped provided better corrosion protection properties for the Ce-Fe-B magnet compared with bare substrate.


2007 ◽  
Vol 56 (3) ◽  
pp. 1758
Author(s):  
Zhang Xu-Dong ◽  
Xu Tie-Feng ◽  
Nie Qiu-Hua ◽  
Dai Shi-Xun ◽  
Shen Xiang ◽  
...  

2020 ◽  
Vol 41 (3) ◽  
pp. 271-280
Author(s):  
黄晓松 HUANG Xiao-song ◽  
姜荣云 JIANG Rong-yun ◽  
杨 健 YANG Jian ◽  
刘春光 LIU Chun-guang ◽  
祝汉成 ZHU Han-cheng ◽  
...  

2019 ◽  
Vol 12 ◽  
pp. 357-360 ◽  
Author(s):  
Jing-Yi Chen ◽  
Jing-Yan Lv ◽  
Zhong-Yue Wang ◽  
She-Bao Lin ◽  
Hai-Tao Guo ◽  
...  

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