Results 71 to 80 of about 6,746,161 (288)

Parametric generation of surface deformations in laser interaction with overdense plasmas

Laser and Particle Beams, 2002
By analytical modeling and numerical simulation, we show that surface modes in moderately overdense plasmas may be excited parametrically by an intense, ultrashort laser pulse. This process has a feedback effect on fast electron generation and may seed a fast distortion of plasma “moving mirrors.”
A. MACCHI, M. BATTAGLIN, CORNOLTI, FULVIO, PEGORARO, FRANCESCO, T:V:LISSEIKINA, H. RUHL, V. A. VISHIKOV   +6 more
openaire   +2 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

The effect of surface treatment and thermal aging on the bonding of clear aligner attachments to provisional resin-based material: shear bond strength analysis

Frontiers in Oral Health
ObjectivesThe aim of this study is to evaluate the effect of different surface treatments on the shear bond strength (SBS) of clear aligner attachments bonded to Bis-acryl provisional crowns.Methods120 cylindrical bisacrylic composite material (ProTemp ...
Suliman Y. Shahin, Norah AlQahtani, Tahani H. Abushowmi, Intisar A. Siddiqui, Sultan Akhtar, Essam A. Nassar, Mohammed M. Gad   +6 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Surface modification of HVOF thermal sprayed WC–CoCr coatings by laser treatment [PDF]

, 2010
In this work the affects of laser characteristics on microstructure and microhardness of high velocity oxygen fuel sprayed (HVOF) WC–CoCr coatings were investigated.
A. Forn, Chikarakara, Evans, E. Chikarakara, M. Punset, Brabazon, Dermot, Picas, J.A., Aqida, S., Brabazon, D., S. Naher, Forn Alonso, Antonio, Naher, Sumsun, Punset Fuste, Miquel, D. Brabazon, S. Aqida, Punset, M., Forn, A., Chikarakara, E., Naher, S., Aqida, S.N., Picas Barrachina, Josep Anton, J. A. Picas   +20 more
core   +2 more sources

Ultrafast characterization of plasma critical surface evolution in inertial confinement fusion experiments with chirped laser pulses

High Power Laser Science and Engineering
Laser-driven inertial confinement fusion (ICF) diagnostics play a crucial role in understanding the complex physical processes governing ICF and enabling ignition. During the ICF process, the interaction between the high-power laser and ablation material
Linjun Li, Zhantao Lu, Xinglong Xie, Meizhi Sun, Xiao Liang, Qingwei Yang, Ailin Guo, Ping Zhu, Xuejie Zhang, Dongjun Zhang, Hao Xue, Guoli Zhang, Rashid Ul Haq, Haidong Zhu, Jun Kang, Jianqiang Zhu   +15 more
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

IDENTIFIKASI UNSUR NIKEL DENGAN TEKNIK LASER INDUCED PLASMA (LIP) [PDF]

, 2004
The line spectral of Ni element has been obtained for high and low concentration using Laser Induced Plasma (LIP) method. Focusing of high power pulse laser without pre treatment on the sample generates the Ni plasma contributed to atomic emission.
Kulla, Irwanuddin H., Setia Budi, Wahyu, Firdausi, K. Sofjan   +2 more
core   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

Highly intensified emission of laser-accelerated electrons from a foil target through an additional rear laser plasma

Physical Review Accelerators and Beams, 2018
Intensification of electrons escaping from an intense laser-produced plasma is demonstrated by using double femtosecond laser pulses. The electron density distribution at the rear surface of a laser-irradiated foil target is controlled by preirradiation ...
Shunsuke Inoue, Yoshihide Nakamiya, Kensuke Teramoto, Masaki Hashida, Shuji Sakabe   +4 more
doaj   +1 more source