Machining millimeter-scale deep holes in SiCf/SiC material using femtosecond laser filamentation effect
Journal Title: Materials Science: Advanced Composite Materials - Year 2018, Vol 2, Issue 3
Abstract
A 3.5 mm thick SiCf/SiC material was drilled in air environment using a femtosecond laser filament effect. The surface morphology of deep micropores was observed by scanning electron microscopy and the depth and profile of the pores were observed using μm-CT. The variation of entrance diameter, exit diameter and depth variation with laser focus position and processing time was further analyzed. The results showed that as the processing time of femtosecond laser increases, the ablation threshold of the material reached saturation. The exit and entrance diameter also stopped increasing and the aperture tend to saturate. The focus entered the interior of the material, allowing the location of the peak power near the surface of the material. So the entrance aperture was of good quality and the exit aperture was round.
Authors and Affiliations
Jie Zhao, Wenjun Wang, Ruijia Wang, Jianlei Cui
Keywords
Related Articles
- EP ID EP679019
- DOI -
- Views 169
- Downloads 0
Fabrication and investigation of polymer-based carbon composite as gas diffusion layer of proton exchange membrane of fuel cells
Carbon paper is one of the most important component in polymer electrolyte PEM fuel cells. In this research, we report two methods of manufacturing carbon papers that do not need the steps of carbonization and graphitiza...
Short beam strength and flexural behavior of GFRP laminates embedded with short carbon fibers having notch
This paper examines the mechanical performance of eight-layered GFRP laminate embedded with short carbon fibers (SCF). Eight layered GFRP samples are prepared using press molding machine at 40 KN pressure. Notched sample...
Design of Broadband Metamaterial-Based Ferromagnetic Absorber
In this paper, a metamaterial-based ferromagnetic absorber has been designed at microwave frequencies. The proposed absorber is composed of a periodic array of stacked circular ferromagnetic patches fabricated on the FR4...
Mechanical and structural properties of termite soil as a partial replacement to cement for different applications
This paper presents the results of the experimental and theoretical study of the mechanical and structural properties of termite soil as a partial replacement to cement for different applications, especially in the build...
Physicho and electrochemical characterization of PVC incorporated ZP composite membrane and their important parameters through applying TMS equation
The synthetic organic-inorganic composite membranes have enormous applications in the field of filtration and purification processes. The newly synthesized PVC (polyvinyl chloride) incorporated ZP (zinc phosphate) compos...