Results 61 to 70 of about 40,382 (313)

Silica suspension and coating developments for Advanced LIGO [PDF]

open access: yes, 2006
The proposed upgrade to the LIGO detectors to form the Advanced LIGO detector system is intended to incorporate a low thermal noise monolithic fused silica final stage test mass suspension based on developments of the GEO 600 suspension design. This will
Acernese F   +41 more
core   +2 more sources

Combinatorial Screening for Europium Induced Defect Engineering in Titania Anodic Memristors

open access: yesAdvanced Materials Interfaces, EarlyView.
A Ti‐Eu thin‐film combinatorial libary (3‐17 at.% Eu) was fabricated by co‐sputtering and anodisation. Systematic screening revealed forming‐free memristors with analog switching, with compositions between 7‐17 at.% Eu showing improved endurance and multilevel resistive states.
Elena Atanasova   +5 more
wiley   +1 more source

Laser Beam Welding with High-Frequency Beam Oscillation: Welding of Dissimilar Materials with Brilliant Fiber Lasers

open access: yesPhysics Procedia, 2011
Brilliant laser beam sources in connection with a high frequent beam oscillation make it now possible to join metallic material combinations, which have been conventionally non-laser weldable up to now. It concerns especially such combinations like Al-Cu, where brittle intermetallic phases occur.
Kraetzsch, Mathias   +5 more
openaire   +1 more source

The influence of process gas type on the enamel surface condition of a high power diode laser generated single-stage ceramic tile grout seal [PDF]

open access: yes, 2002
Almost all laser materials processing operations require the simultaneous use of an process or assist gas. This paper examines the use of O2, Ar, N2 and He as process gasses during the firing of a vitreous enamel to form a single-stage ceramic tile grout
Edwards, Roger E.   +3 more
core   +1 more source

Laser‐Based Solidification of Cermets/Cemented Carbides: Processing‐Microstructure‐Property Relationships

open access: yesAdvanced Materials Technologies, EarlyView.
Recent research on laser‐processed cermets and cemented carbides highlights significant advancements, yet a notable paucity of studies and persistent challenges remain. Efforts are increasingly focused on developing low‐cost, environmentally friendly cermets as alternatives to conventional materials.
Himanshu Singh Maurya   +2 more
wiley   +1 more source

Investigation of Thermal Stress Distribution in Laser Spot Welding Process

open access: yesAl-Khawarizmi Engineering Journal, 2009
The objective of this paper was to study the laser spot welding process of low carbon steel sheet. The investigations were based on analytical and finite element analyses.
Osamah F. Abdulateef
doaj   +2 more sources

WELDING OF THERMOPLASTIC MATERIALS USING CO2 LASER

open access: yesDiyala Journal of Engineering Sciences, 2012
The welding of thermoplastics using CO2 laser achieved, two different types of thermoplastic materials used which are; Perspex (PMMA) which is the abbreviation of polymethyl methacrylate and (HDPE) which is the abbreviation of high density polyethylene.
Fayroz A. Sabah
doaj   +1 more source

Laser welding beam quality calibration [PDF]

open access: yes, 1997
The relationship of beam quality and weld depth of penetration was studied to attempt to better quantify the operation of CO{sub 2} laser beam welders. Equipment to measure laser beam quality was obtained. The equipment was calibrated using standard apertures.
openaire   +2 more sources

Laser beam welding of any metal [PDF]

open access: yesICALEO '98: Proceedings of the Laser Materials Processing Conference, 1998
The effect of a metal’s thermophysical properties on its weldability are examined. The thermal conductivity, melting point, absorptivity and thermal diffusivity of the metal and the laser beam focused diameter and welding speed influence the minimum beam irradiance required for melting and welding.
K. H. Leong, H. K. Geyer
openaire   +1 more source

Laser beam cutting and welding of coronary stents [PDF]

open access: yes, 2008
Coronary stents are thin-walled and mesh-structured metallic implants, which are made generally by laser beam cutting of high-precision tubes of 90-120 micrometer thickness.
Bella, Sz.   +3 more
core  

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