Surface texturing of aluminum alloy 2024-T3 via femto- and nanosecond pulse excimer laser irradiation

2000 ◽  
Vol 6 (4) ◽  
pp. 689-695 ◽  
Author(s):  
Kai Dou ◽  
E.T. Knobbe ◽  
R.L. Parkhill ◽  
Yinmin Wang
Keyword(s):  
Aluminum Alloy ◽  
Laser Irradiation ◽  
Excimer Laser ◽  
Surface Texturing ◽  
Nanosecond Pulse ◽  
Pulse Excimer Laser ◽  
Excimer Laser Irradiation ◽  
Aluminum Alloy 2024

scholarly journals Enhanced Long-Term Reliability of Seal DeltaSpot Welded Dissimilar Joint between 6061 Aluminum Alloy and Galvannealed Steel via Excimer Laser Irradiation

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6756
Author(s):  
Sung-Min Joo ◽  
Young-Gon Kim ◽  
Young-Jin Kwak ◽  
Dong Jin Yoo ◽  
Chang-U Jeong ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Laser Irradiation ◽  
Excimer Laser ◽  
Al Alloy ◽  
Chemical Interactions ◽  
6061 Aluminum Alloy ◽  
Excimer Laser Irradiation ◽  
Galvannealed Steel

Structural-adhesive-assisted DeltaSpot welding was used to improve the weldability and mechanical properties of dissimilar joints between 6061 aluminum alloy and galvannealed HSLA steel. Evaluation of the spot-weld-bonded surfaces from lap shear tests after long-term exposure to chloride and a humid atmosphere (5% NaCl, 35 °C) indicated that the long-term mechanical reliability of the dissimilar weld in a corrosive environment depends strongly on the adhesive–Al6061 alloy bond strength. Corrosive electrolyte infiltrated the epoxy-based adhesive/Al alloy interface, disrupting the chemical interactions and decreasing the adhesion via anodic undercutting of the Al alloy. Due to localized electrochemical galvanic reactions, the surrounding nugget matrix suffered accelerated anodic dissolution, resulting in an Al6061-T6 alloy plate with degraded adhesive strength and mechanical properties. KrF excimer laser irradiation of the Al alloy before adhesive bonding removed the weakly bonded native oxidic overlayers and altered the substrate topography. This afforded a low electrolyte permeability and prevented adhesive delamination, thereby enhancing the long-term stability of the chemical interactions between the adhesive and Al alloy substrate. The results demonstrate the application of excimer laser irradiation as a simple and environmentally friendly processing technology for robust adhesion and reliable bonding between 6061 aluminum alloy and galvannealed steel.

Surface modification of inorganic solid oxides by excimer laser irradiation

1989 ◽  
Author(s):  
Kaoru Igarashi ◽  
Hideaki Saito ◽  
Tomoo Fujioka ◽  
Satoru Fujitsu ◽  
Kunihito Koumoto ◽  
...  
Keyword(s):  
Surface Modification ◽  
Laser Irradiation ◽  
Excimer Laser ◽  
Solid Oxides ◽  
Excimer Laser Irradiation

scholarly journals Surface Texturing of Polyethylene Terephthalate Induced by Excimer Laser in Silver Nanoparticle Colloids

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3263
Author(s):  
Jakub Siegel ◽  
Tatiana Savenkova ◽  
Jana Pryjmaková ◽  
Petr Slepička ◽  
Miroslav Šlouf ◽  
...  
Keyword(s):  
Surface Morphology ◽  
Polyethylene Terephthalate ◽  
Excimer Laser ◽  
Silver Nanoparticle ◽  
Polymer Surface ◽  
Surface Texturing ◽  
Nanoparticle Distribution ◽  
Pulse Excimer Laser ◽  
Variable Surface ◽  
Variable Morphology

We report on a novel technique of surface texturing of polyethylene terephthalate (PET) foil in the presence of silver nanoparticles (AgNPs). This approach provides a variable surface morphology of PET evenly decorated with AgNPs. Surface texturing occurred in silver nanoparticle colloids of different concentrations under the action of pulse excimer laser. Surface morphology of PET immobilized with AgNPs was observed by AFM and FEGSEM. Atomic concentration of silver was determined by XPS. A presented concentration-controlled procedure of surface texturing of PET in the presence of silver colloids leads to a highly nanoparticle-enriched polymer surface with a variable morphology and uniform nanoparticle distribution.

Wavelength Dependence of Excimer Laser Irradiation Effects on Ethylene-Tetrafluoroethylene Copolymer

1994 ◽  
Vol 33 (Part 1, No. 8) ◽  
pp. 4764-4768 ◽  
Author(s):  
Yuji Hamada ◽  
Shunichi Kawanishi ◽  
Masanobu Nishii ◽  
Shun'ichi Sugimoto ◽  
Tadashi Yamamoto
Keyword(s):  
Laser Irradiation ◽  
Excimer Laser ◽  
Wavelength Dependence ◽  
Irradiation Effects ◽  
Excimer Laser Irradiation ◽  
Ethylene Tetrafluoroethylene

Phase Variation of Amorphous-Si and Poly-Si Thin Films with Excimer Laser Irradiation

1996 ◽  
Vol 35 (Part 2, No. 11B) ◽  
pp. L1473-L1475 ◽  
Author(s):  
Kuninori Kitahara ◽  
Katsuyuki Suga ◽  
Akito Hara ◽  
Kazuo Nakajima
Keyword(s):  
Thin Films ◽  
Laser Irradiation ◽  
Excimer Laser ◽  
Phase Variation ◽  
Excimer Laser Irradiation ◽  
Amorphous Si

Polycrystalline silicon recrystallized with excimer laser irradiation and impurity doping using ion doping method

1993 ◽  
Vol 73 (7) ◽  
pp. 3271-3275 ◽  
Author(s):  
Yutaka Miyata ◽  
Mamoru Furuta ◽  
Tatsuo Yoshioka ◽  
Tetsuya Kawamura
Keyword(s):  
Laser Irradiation ◽  
Excimer Laser ◽  
Polycrystalline Silicon ◽  
Ion Doping ◽  
Impurity Doping ◽  
Excimer Laser Irradiation

Surface Alteration of Amorphous Si3N4 Films by ArF Excimer Laser Irradiation

1995 ◽  
Vol 34 (Part 2, No. 11A) ◽  
pp. L1482-L1485 ◽  
Author(s):  
Kazuo Nakamae ◽  
Kou Kurosawa ◽  
Yasuo Takigawa ◽  
Wataru Sasaki ◽  
Yasukazu Izawa ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Excimer Laser ◽  
Surface Alteration ◽  
Excimer Laser Irradiation ◽  
Arf Excimer Laser ◽  
Amorphous Si3n4
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