| LUO Fang,DU Lin-lin,ZHANG Qun-li,YE Chen,LU Xian-gang,YAO Jian-hua.Conditions and Characteristics of SiC Nanoparticles in-situ Generation of SiC Nanowires by Laser Irradiation Process[J],48(2):17-23 |
| Conditions and Characteristics of SiC Nanoparticles in-situ Generation of SiC Nanowires by Laser Irradiation Process |
| Received:October 26, 2018 Revised:February 20, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2019.02.003 |
| KeyWord:nano materials laser irradiation laser energy density crystal structure nano particles nanowires |
| Author | Institution |
| LUO Fang |
1.Zhijiang College, Zhejiang University of Technology, Hangzhou , China; 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
| DU Lin-lin |
2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
| ZHANG Qun-li |
2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
| YE Chen |
2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
| LU Xian-gang |
2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
| YAO Jian-hua |
2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou , China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou , China |
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| Abstract: |
| The work aims to obtain a new method to prepare silicon carbide nano-fibers by optimizing the process and laser processing parameters. The nano-silicon carbide particles prepositioned on the Ni substrate was irradiated by the 500 W galva-nometer-type fiber laserunder the protection of argon. The surface morphology, elemental composition, phases and microstructure of obtained products were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffractometry (XRD) and transmission electron microscopy (TEM), respectively. The laser processing parameters had certain effects on morphology and structure of obtained products. When the laser energy density was between 7.71 kJ/cm2 and 8.75 kJ/cm2, the prepared silicon carbide nano-fibers consisted of polycrystalline and amorphous structures and the diameter ranged from 5 nm to 10 nm. When the energy density of laser was 7.92 kJ/cm2 to 8.33 kJ/cm2, a small amount of C element was present in the sample in addition to SiC. Therefore, silicon carbide nano-fibers with good morphology can be obtained by the silicon carbide particles irradiatedon the Ni substrateat certain laser processing parameters, thus providing a new method for prepared silicon carbide nano-fibers. |
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