Topographical and surface chemical characterization of nanosecond pulsed-laser micromachining of titanium at 532-nm wavelength

Bi-Pb-Sr-Ca-Cu-O (BPSCCO) and Bi-Pb-Sb-Sr-Ca-Cu-O (BPSSCCO) thin films were grown on MgO single crystal substrates by pulsed laser deposition. The deposition was carried out at room temperature during 90 minutes. A Nd:YAG excimer laser ( = 355 nm) with a 2 J/pulse energy density operated at 30 Hz was used. The distance between the target and substrate was kept constant at 4,5 cm. Nominal composition of the targets was Bi1,6Pb0,4Sr2Ca2Cu3O and Bi1,6Pb0,4Sb0,1Sr2Ca2Cu3OSuperconducting targets were prepared following a state solid reaction. As-grown films were annealed at different conditions. As-grown and annealed films were characterized by XRD, FTIR, and SEM. The films were prepared applying an experimental design. The relationship among deposition parameters and their effect on the formation of superconducting Bi-system crystalline phases was studied.

Download Full-text

Pocket milling of carbon fiber-reinforced plastics using 532-nm nanosecond pulsed laser: An experimental investigation

Journal of Composite Materials ◽

10.1177/0021998315614990 ◽

2015 ◽

Vol 50 (20) ◽

pp. 2861-2869 ◽

Cited By ~ 4

Author(s):

Jun Hu ◽

Hebing Xu

Keyword(s):

Experimental Investigation ◽

Carbon Fiber ◽

Pulsed Laser ◽

Fiber Reinforced ◽

Carbon Fiber Reinforced Plastics ◽

Pocket Milling ◽

Reinforced Plastics ◽

Nanosecond Pulsed Laser ◽

Fiber Reinforced Plastics ◽

532 Nm

Download Full-text

Surface Chemical Characterization of Carbons from Adsorption Studies

Adsorption by Carbons ◽

10.1016/b978-008044464-2.50017-1 ◽

2008 ◽

pp. 301-327 ◽

Cited By ~ 15

Author(s):

Hans-Peter Boehm

Keyword(s):

Chemical Characterization ◽

Surface Chemical ◽

Adsorption Studies

Download Full-text

Preparation of ZnO Nanoparticles by 1064/532nm Laser Ablation and Studying the Effect of the Ablation Wavelength

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1021.171 ◽

2021 ◽

Vol 1021 ◽

pp. 171-180

Author(s):

Munaf S. Majeed ◽

Rabea Q. Nafil ◽

Marwa F. Abdul Jabbar ◽

Kadhim H. Suffer

Keyword(s):

Zinc Oxide ◽

Laser Ablation ◽

Pure Water ◽

Pulsed Laser ◽

Pulsed Laser Ablation ◽

Ultra Pure Water ◽

Hexagonal Shape ◽

532 Nm ◽

Laser Ablation Technique

We prepared Zinc oxide nanomaterial employing PLA (pulsed laser ablation) technique. A pure Zn target was immersed in ultra-pure water (UPW) and it was subjected to several pulses (1st. and 2nd. harmonic) of the pumping Nd: YAG laser. The influence of changing laser’s wavelength (1064, 532) nm on the characterization of the produced nanoparticles was studied. The results obtained from studying the structure, topography, and morphology of the product showed that the particles have a hexagonal shape. Also, changing the wavelength of the laser from 532nm to 1064nm leads to size reduction and density increasing of the nanoparticles.

Download Full-text