Results 11 to 20 of about 19,754 (274)

The Mechanical Properties of Photopolymer Prepared Via 3D Stereolithography Printing: The Effect of UV Curing Time and Anisotropy

open access: yesChemical Engineering Transactions, 2020
Stereolithography is a high accuracy additive manufacturing process that uses a laser beam to cure photopolymer resin according to the computer-aided design file.
Khalid W. H. Ahmad   +4 more
doaj   +1 more source

Visualization of Au Nanoparticles Buried in a Polymer Matrix by Scanning Thermal Noise Microscopy [PDF]

open access: yes, 2016
We demonstrated visualization of Au nanoparticles buried 300 nm into a polymer matrix by measurement of the thermal noise spectrum of a microcantilever with a tip in contact to the polymer surface.
Kimura, Kuniko   +4 more
core   +2 more sources

Isolation and structure of fullerene photodimer, C-120 [PDF]

open access: yes, 2001
Photopolymerization of C60 was performed on a gram scale via a new monomer transport method. After subsequent extractions of the raw polymer in organic solvents, lOOmg dimer and lOmg mixture of soluble oligomers were yielded.
Kamarás, Katalin   +4 more
core   +1 more source

Enhanced Polarization Properties of Holographic Storage Materials Based on RGO Size Effect

open access: yesMolecules, 2023
Polarized holographic properties play an important role in the holographic data storage of traditional organic recording materials. In this study, reduced graphene oxide (RGO) was introduced into a phenanthraquinone-doped polymethylmethacrylate (PQ/PMMA)
Jie Liu   +8 more
doaj   +1 more source

EXPERIMENTAL METHOD FOR DETERMINATION OF SHRINKAGE DIRECRION DURING HOLOGRAPHIC RECORDING IN BAYFOL HX PHOTOPOLYMER [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental determination of the main shrinkage direction caused by photopolymerization during holographic recording in Bayfol HX material.
Vladimir N. Borisov   +3 more
doaj   +1 more source

Process Planning to Build Mask Projection Stereolithography Parts with Accurate Vertical Dimensions [PDF]

open access: yes, 2007
Mask Projection Stereolithography (MPSLA) is a high resolution manufacturing process that builds parts layer by layer in a photopolymer. In this paper, we formulate a process planning method to cure MPSLA parts with accurate vertical dimensions.
Limaye, Ameya, Rosen, David
core   +1 more source

Layered Thin Film Micro Parts Reinforced with Aligned Short Fibers in Laser Stereolithography by Applying Magnetic Field

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
The purpose of this research is to produce micro parts reinforced by unidirectional short fibers using laser stereolithography. Ferromagnetic short fibers are added to a liquid photopolymer and a magnetic field is then applied to the liquid photopolymer,
Takeshi NAKAMOTO, Shinya KOJIMA
doaj   +1 more source

Recording of multiple holograms in photopolymer films [PDF]

open access: yes, 1992
Multiple images were recorded in DuPont HRF-150 photopolymer as transmission holograms by using angle multiplexing. Agreement with Kogelnik's two-wave diffraction theory for phase gratings, the time considerations and its effect on dynamic range, the ...
Curtis, Kevin, Psaltis, Demetri
core   +1 more source

Compositional Changes for Reduction of Polymerisation-Induced Shrinkage in Holographic Photopolymers

open access: yesAdvances in Materials Science and Engineering, 2016
Polymerisation-induced shrinkage is one of the main reasons why many photopolymer materials are not used for certain applications including holographic optical elements and holographic data storage.
D. Cody   +5 more
doaj   +1 more source

Development of a 3D printer using scanning projection stereolithography [PDF]

open access: yes, 2015
We have developed a system for the rapid fabrication of low cost 3D devices and systems in the laboratory with micro-scale features yet cm-scale objects.
Cooper, Geoffrey J.T.   +5 more
core   +1 more source

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