骆芳,杜琳琳,张群莉,叶琛,卢献钢,姚建华.激光辐照碳化硅颗粒原位生成碳化硅纳米纤维的条件与特征[J].表面技术,2019,48(2):17-23.
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].Surface Technology,2019,48(2):17-23 |
| 激光辐照碳化硅颗粒原位生成碳化硅纳米纤维的条件与特征 |
| Conditions and Characteristics of SiC Nanoparticles in-situ Generation of SiC Nanowires by Laser Irradiation Process |
| 投稿时间：2018-10-26 修订日期：2019-02-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2019.02.003 |
| 中文关键词: 纳米材料 激光辐照 激光能量密度 晶体结构 纳米颗粒 纳米纤维 |
| 英文关键词:nano materials laser irradiation laser energy density crystal structure nano particles nanowires |
| 基金项目:国家重点研发计划（2018YFB0407300）；国家自然科学基金（51605441） |
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| Author | Institution |
| LUO Fang | 1.Zhijiang College, Zhejiang University of Technology, Hangzhou 310024, China; 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
| DU Lin-lin | 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
| ZHANG Qun-li | 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
| YE Chen | 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
| LU Xian-gang | 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
| YAO Jian-hua | 2.Institute of Laser Advanced Manufacturing, Zhejiang University of Technology, Hangzhou 310014, China; 3.ZhejiangProvincial Collaborative Innovation Center of High-end Laser Manufacturing Equipment, Hangzhou 310014, China |
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| 中文摘要: |
| 目的 通过优化制备碳化硅纳米纤维的工艺及激光工艺参数，获得一种制备碳化硅纳米纤维的新方法。方法 利用500 W振镜式光纤激光器，在氩气的保护下，以一定的激光工艺参数辐照预置在镍基板上的纳米碳化硅颗粒，采用扫描电镜（SEM）、能谱仪（EDS）、X射线衍射仪（XRD）和透射电镜（TEM）分别对所得产物的形貌、元素组成、物相以及微观结构进行分析。结果 激光工艺参数对所得产物的形貌以及结构有一定的影响，当激光能量密度在7.71~8.75 kJ/cm2之间时，制备出的碳化硅纳米纤维由多晶和非晶结构组成，其直径范围在5~10 nm之间；当激光能量密度为7.92~8.33 kJ/cm2时，样品中除SiC外，还有少量的C元素。结论 激光辐照Ni基板上的碳化硅纳米颗粒，在优化的激光工艺参数下，可以制备出形貌良好的纳米纤维，为制备纳米材料提供了一种新途径。 |
| 英文摘要: |
| 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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