Effect of Laser fluence on Structure Properties of α-Al2O3 Prepared by Sol Gel
DOI:
https://doi.org/10.24237/Keywords:
Nd :YAG laser, irradiation, pulses, Al2O3, sol gel, structure properties.Abstract
The aim of this study to show the effect of laser fluence on Structure Properties Of α-Alumina nanoparticle (α-Al2O3) which had been synthesized by sol gel method. A laser Nd :YAG (1064 nm,1500 mJ) was used for irradiation the samples at (1 minute for 100 pulses) and ( 3 minutes for 300 pulses ). The characteristic features of the samples had been improved directly with the increasing the pulse and irradiation time of the laser as shown in these tests (XRD, FESEM, FT-IR and Hardness). The XRD analysis show diffraction peaks remained unchanged when the laser irradiation was increased but the clearest effect of the laser on the samples was a decrease in the size of the crystals. FESEM of the irradiated samples decrease in particle size when increase laser irradiation .FTIR showed no changes for all sample after laser irradiation. Also, the hardness of the irradiated samples is harder than the original sample, and the hardness increases with increasing laser pulses and irradiation time.
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