A path to renewable Mg reduction from MgO by a continuous-wave Cr:Nd:YAG ceramic solar laser

被引：25
|
作者：
Oliveira, Mariana [1 ]
Liang, Dawei [1 ]
Almeida, Joana [1 ]
Vistas, Claudia R. [1 ]
Goncalves, Filipe [1 ]
Martins, Rodrigo [2 ]
机构：
[1] Univ Nova Lisboa, Dept Fis, CEFITEC, Campus Caparica, P-2829516 Lisbon, Portugal
[2] Univ Nova Lisboa, CEMOP UNINOVA, Dept Ciencia Mat, CENIMAT,Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2016年 / 155卷
关键词：
Magnesium; Magnesium oxide; Laser ablation; Cr:Nd:YAG; Solar laser; Continuous-wave; ND-YAG LASER;
D O I：
10.1016/j.solmat.2016.06.046
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The first successful ablation of magnesium oxide through a home-made continuous-wave Cr:Nd:YAG ceramic solar laser is reported. A stationary heliostat-parabolic mirror solar energy collection and concentration system was used. A stable continuous-wave laser output power of 19.2 W was attained with laser beam brightness figure of merit 7.6 times higher than that of the previous scheme, enabling therefore the direct ablation of pure magnesium by our solar-pumped laser with only 1.6 m(2) effective collection area. This could be an important step towards renewable magnesium production, offering multiple advantages, such as reducing agent avoidance, in relation to that of the previous Fresnel lens Cr: Nd:YAG continuous-wave solar laser system. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：430 / 435
页数：6
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