Heidarinassab Saeid, Nyabadza Anesu, Ahad Inam Ul, Brabazon Dermot
I-From, Advanced Manufacturing Research Centre, Advanced Processing Technology Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, D09 V209 Dublin, Ireland.
EPSRC & SFI Centre for Doctoral Training (CDT) in Advanced Metallic Systems, School of Mechanical and Manufacturing Engineering, Dublin City University, D09 V209 Dublin, Ireland.
Materials (Basel). 2024 Sep 14;17(18):4527. doi: 10.3390/ma17184527.
In this study, silicon carbide nanoparticles (NPs) were produced via pulsed laser ablation in liquid, aiming to investigate the influence of processing parameters on the properties of the resultant NPs and their applicability for inkjet printing. The results revealed an increase in NP concentration with increasing laser power, but the maximal absorbance in the case of 0.743 and 1.505 W is lower than that for 1.282 W laser. Dynamic light scattering was employed to determine the size distribution of the NPs, demonstrating a range of 89 to 155 nm in diameter. Notably, an inverse relationship was established between increasing laser scanning speed and pulse repetition rate (PRR) and the mean size of the NPs. Higher PRR and laser power exhibited an augmentation in the concentration of NPs. Conversely, an increase in scanning speed resulted in a reduction in NP concentration. Based on FTIR, data formation of SiC NPs based on the target material is the most dominant behavior observed followed by an amount of oxidation of the NPs. Examination of the resulting NPs through field emission scanning electron microscopy equipped with energy-dispersive X-ray analysis (EDX) unveiled a predominantly spherical morphology, accompanied by particle agglomeration in some cases, and the elemental composition showed silicon, carbon, and some oxygen present in the resulting NPs. Furthermore, the modulation of colloidal solution viscosity was explored by incorporating glycerol, yielding a maximal viscosity of 10.95 mPa·s.
在本研究中，通过液体中的脉冲激光烧蚀制备了碳化硅纳米颗粒（NPs），旨在研究工艺参数对所得纳米颗粒性能的影响及其在喷墨打印中的适用性。结果表明，随着激光功率的增加，纳米颗粒浓度升高，但在0.743 W和1.505 W情况下的最大吸光度低于1.282 W激光的情况。采用动态光散射法测定纳米颗粒的尺寸分布，结果表明其直径范围为89至155 nm。值得注意的是，激光扫描速度和脉冲重复率（PRR）的增加与纳米颗粒的平均尺寸之间存在反比关系。较高的PRR和激光功率导致纳米颗粒浓度增加。相反，扫描速度的增加导致纳米颗粒浓度降低。基于傅里叶变换红外光谱（FTIR），基于靶材形成SiC NPs是观察到的最主要行为，其次是纳米颗粒的一定程度氧化。通过配备能量色散X射线分析（EDX）的场发射扫描电子显微镜对所得纳米颗粒进行检查，发现其主要为球形形态，在某些情况下伴有颗粒团聚，元素组成显示所得纳米颗粒中存在硅、碳和一些氧。此外，通过加入甘油探索了胶体溶液粘度的调节，得到的最大粘度为10.95 mPa·s。
