About: Scanning acoustic microscopy investigation of weld lines in injection-molded parts manufactured from industrial thermoplastic polymer

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About: Scanning acoustic microscopy investigation of weld lines in injection-molded parts manufactured from industrial thermoplastic polymer Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : wasabi.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Scanning acoustic microscopy investigation of weld lines in injection-molded parts manufactured from industrial thermoplastic polymer
Creator	Schneider, G Citrin, D Declercq, N Fendler, M Kalmar, R Locquet, Alexandre Mohamed, Esam Zhai, Min
Source	Elsevier; Medline; PMC
abstract	Abstract Scanning acoustic microscopy (SAM) is used to characterize welds in a trade thermoplastic polymer (ABS) manufactured by injection-molding, particularly at the locations of weld-lines known to form as unavoidable significant defects. Acoustic micrographs obtained at 420 MHz clearly resolve the weld lines with morphological deformations and microelastic heterogenity. This is also where terahertz (THz) measurements, carried out in support of the SAM study, reveal enhanced birefringence corresponding to the location of these lines enabling verification of the SAM results. Rayleigh surface acoustic waves (RSAW), quantified by V(z) curves (with defocusing distance of 85 µm), are found to propagate slower in regions close to the weld lines than in regions distant from these lines. The discrepancy of about 100 m/s in the velocity of RSAW indicates a large variation in the micro-elastic properties between areas close to and distant from the weld lines. The spatial variations in velocity (VR ) of RSAWs indicate anisotropic propagation of the differently polarized ultrasonic waves.
has issue date	2020-08-16(xsd:dateTime)
bibo:doi	10.1016/j.micron.2020.102925
bibo:pmid	32858460
has license	els-covid
sha1sum (hex)	c7c4dd9a52bd5fb6e27f0d9cb72e9ceed5f40c85
schema:url	https://doi.org/10.1016/j.micron.2020.102925
resource representing a document's title	Scanning acoustic microscopy investigation of weld lines in injection-molded parts manufactured from industrial thermoplastic polymer
has PubMed Central identifier	PMC7428748
has PubMed identifier	32858460
schema:publication	Micron
resource representing a document's body	covid:c7c4dd9a52bd5fb6e27f0d9cb72e9ceed5f40c85#body_text
is schema:about of	named entity 'Terahertz imaging' named entity 'Scanning' named entity 'thermoplastic' named entity 'injection-molded' named entity 'BY INJECTION' named entity 'ANALYSIS' named entity 'diffraction limited' named entity 'RSAW' named entity 'velocity' named entity 'manufactured' named entity 'Scanning' named entity 'Journal' named entity 'weld' named entity 'acoustic microscopy' named entity 'solidification' named entity 'field of view' named entity 'velocity' named entity 'scattering' named entity 'mass-production' named entity 'polarization' named entity 'ABS' named entity 'styrene and acrylonitrile' named entity 'butadiene' named entity 'acoustic waves' named entity 'injection molding' named entity 'elastomers' named entity 'microstructural' named entity 'anisotropic' named entity 'terahertz' named entity 'residual stresses' named entity 'commercially produced' named entity 'critical angle' named entity '1.2' named entity 'THz' named entity 'acoustic properties' named entity 'high-resolution' named entity 'optical properties' named entity 'calorimetry' named entity 'normal incidence' named entity 'voltage' named entity 'isotropic' named entity 'isotropic' named entity 'transducer' named entity 'Ultrasound' named entity 'THz' named entity 'residual stress' named entity 'piezoelectric transducer' named entity 'velocity' named entity 'plastic electronic' named entity 'scanning electron microscopy' named entity 'polymers' named entity 'phase relations' named entity 'water molecules' named entity 'transducer' named entity 'critical angle' named entity 'ABS' named entity 'elastic moduli' named entity 'Acoustic waves' named entity 'ABS' named entity 'incidence angles' named entity 'velocity' named entity 'velocity' named entity 'injection-mold' named entity 'shear wave' named entity 'shear moduli' named entity 'perpendicular' named entity 'air interface' named entity 'melt temperature' named entity 'THz' named entity 'Young's modulus' named entity 'birefringence' named entity 'transducer' named entity 'Germany' named entity 'PVA'

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