The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite

doi:10.3390/ma12193076

CORC > 力学研究所 > 中国科学院力学研究所 > 先进制造工艺力学重点实验室

	The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite
	Pan SN(潘斯宁)3; Li QY(李青宇)1,2; Xian ZK 3; Su NGg 3; Zeng FZ 3
刊名	MATERIALS
	2019-10-01
卷号	12 期号:19 页码:14
关键词	Laser ablation C SiC composite Surface morphology Ablation mechanism Scanning electron microscopy (SEM)
ISSN号	1996-1944
DOI	10.3390/ma12193076
通讯作者	Zeng, Fanzheng(hzxypaper@163.com)
英文摘要	The effects of laser parameters and the ablation mechanism in laser ablation of a carbon fiber reinforced silicon carbide (C/SiC) composite are investigated in the present study. Six different power densities are provided, as well as six levels of pulse numbers, and then ablation experiments are conducted for the C/SiC composite, induced by a pulsed laser. Based on the experimental results, the characteristics of surface morphology and ablation behavior are discussed. It is revealed that the surface morphology of the C/SiC composite under laser irradiation usually includes three regions: the center region, the transition region, and the border region. With the increase of laser power density, the ablation of the center region becomes severe, surface cracks occur, and more spherical SiC particles are found in the transition region. As for scenarios involving multiple pulses, the damage occurs in the center region at low power density limits, within the first two layers below the surface. However, if the power density is relatively high, an ablation pit occurs in the center region when the pulse number is larger than 50. Meanwhile, the transition region and the border region diminish with increase of the pulse number. It is noted that both the power density and pulse number have noticeable effects on surface morphology and ablation behavior during laser ablation, which is helpful for material design and performance evaluation of C/SiC composites.
分类号	二类
资助项目	scientific research foundation of Hezhou University[HZUBS201806] ; Hezhou Foundation for Research and Development of Science and Technology[1908007]
WOS关键词	OXYACETYLENE TORCH ; BEHAVIOR ; OXIDATION ; INFILTRATION ; RESISTANCE ; CERAMICS ; AIR
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000493308500025
资助机构	scientific research foundation of Hezhou University ; Hezhou Foundation for Research and Development of Science and Technology
其他责任者	Zeng, Fanzheng
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/81382]
专题	力学研究所_先进制造工艺力学重点实验室
作者单位	1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 3.Hezhou Univ, Coll Mech & Elect Engn, Hezhou 542899, Peoples R China;
推荐引用方式 GB/T 7714	Pan SN,Li QY,Xian ZK,et al. The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite[J]. MATERIALS,2019,12(19):14.
APA	潘斯宁,李青宇,Xian ZK,Su NGg,&Zeng FZ.(2019).The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite.MATERIALS,12(19),14.
MLA	潘斯宁,et al."The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite".MATERIALS 12.19(2019):14.