A5034089673- Laser Material Processing Techniques
- Laser-induced spectroscopy and plasma
- Advanced Surface Polishing Techniques
- Diamond and Carbon-based Materials Research
- Ocular and Laser Science Research
- Heat Transfer and Boiling Studies
- Laser-Ablation Synthesis of Nanoparticles
- Nonlinear Optical Materials Studies
- Heat Transfer Mechanisms
- Heat Transfer and Optimization
- High-Temperature Coating Behaviors
- Carbon Nanotubes in Composites
- Neuroscience and Neural Engineering
- Nanomaterials and Printing Technologies
Xi'an Jiaotong University
2016-2023
Silicon carbide (SiC) ceramics have been widely used for microelectronics, aerospace, and other industrial fields due to their excellent chemical stability thermal tolerance. However, hard machinability low machining precision of SiC are the key limitations further applications. To address this issue, a novel method underwater femtosecond laser was introduced in study obtain high smooth surface microgrooves ceramics. The removal profiles were characterized terms width, depth, morphology,...
In this article, a new ultrafast laser polishing method for SiC/SiC composites was reported and the effects of different incident angles were discussed in detail. The results indicated that angle had great influence on composites. Under normal condition, surface roughness barely improved laser-induced defects even degraded process quality. With increasing angle, oxidation dramatically decreased. At 80 degrees, convex structure is almost eliminated protruding fiber neatly cut off....
Owing to high hardness and brittleness of SiC ceramic, it is difficult machine into structural ceramic components with desired surface quality dimensional accuracy. In this paper, a method polishing by underwater femtosecond laser was proposed. The influence frequency pulse energy on morphologies, 3 D profiles, depth roughness polished ceramics during processing investigated in detail. experimental results indicated that the removal increased then decreased increase energy. as increased....
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