MRI Compatible Planar Material Acoustic Lenses

Tarrazó-Serrano, Daniel; Castiñeira-Ibáñez, Sergio; Sánchez-Aparisi, Eugenio; Rubio, Constanza

doi:10.3390/app8122634

Cited by 16 publications

(14 citation statements)

References 18 publications

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“…The greatest density was obtained for the sample containing 2.5% of the 63−40 μm fraction. The experimentally determined neat PLA density is in agreement with the literature value [ 33 ]. In parallel, densities of the samples printed out for bending tests were measured and the results are given in Figure 14 .…”

Section: Resultssupporting

confidence: 89%

Biogenic Composite Filaments Based on Polylactide and Diatomaceous Earth for 3D Printing

et al. 2020

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New composites containing a natural filler made of diatom shells (frustules), permitting the modification of polylactide matrix, were produced by Fused Deposition Modelling (3D printing) and were thoroughly examined. Two mesh fractions of the filler were used, one of <40 µm and the other of 40−63 µm, in order to check the effect of the filler particle size on the composite properties. The composites obtained contained diatom shells in the concentrations from 0% to 5% wt. (0−27.5% vol.) and were subjected to rheological analysis. The composites obtained as filaments of 1.75 mm in diameter were used for 3D printing. The printed samples were characterized as to hydrophilic–hydrophobic, thermal and mechanical properties. The functional parameters of the printed objects, e.g., mechanical characteristics, stability on contact with water and water contact angle, were measured. The results revealed differences in the processing behavior of the samples as well as the effect of secondary granulation of the filler on the parameters of the printing and mechanical properties of the composites.

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Section: Resultssupporting

confidence: 89%

Biogenic Composite Filaments Based on Polylactide and Diatomaceous Earth for 3D Printing

et al. 2020

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“…Additionally, positions of common cockle and mussel in the water column could influenced MP exposure in those species. Indeed, ABS density is greater than seawater (Tarrazó-Serrano et al, 2018) and will tend to sink to the bottom explaining the large proportion of this polymer contaminating cockles sampled at BA (Fig 2A). However, cockles from BdV (Fig 2A) are contaminated by PE, PP and PS although their densities are lighter than seawater (Andrady and Rajapakse, 2017).…”

Section: Microplastics In Mussels and Cocklesmentioning

confidence: 99%

Microplastic contamination and pollutant levels in mussels and cockles collected along the channel coasts

Hermabessière

Paul-Pont

Cassone

et al. 2019

Environmental Pollution

153

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…For reference we have included the velocity of ABS, PLA, and PMMA manufactured using traditional means. 22,23 The Ultimaker and Form 2 specimens have ultrasonic speeds similar to those of standard materials, while the ABS printed on the uPrint is substantially lower than the "traditional" stock material.…”

Section: Resultsmentioning

confidence: 99%

Anisotropic Behavior of Ultrasonic Waves in 3D Printed Materials

Alexander¹,

Hoople²

2019

AJUR

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This study quantifies the anisotropic behavior of ultrasonic wave transmission for materials printed with three different 3D printers. As 3D printed materials become more prevalent in manufactured products, fully characterizing the physical properties of these materials become more important. This paper examines the longitudinal velocity of sound and acoustic impedance in two directions: orthogonal and parallel to the printed layers. Each of the 3D printed materials displayed slightly different transmission results. For PMMA like samples printed on a SLA printer waves travelled more quickly in the orthogonal direction than the parallel direction. For samples printed on an industrial FDM printer using ABS the opposite was true: the parallel direction was faster than the orthogonal. For samples printed on an entry level FDM printer with PLA there was no consistent pattern, instead there was a tight clustering of ultrasonic velocity in the parallel direction but substantial variation in the orthogonal direction. Overall the variation between the orthogonal and parallel directions was found to be less than 2% in all cases. KEYWORDS: 3D Printing; Additive Manufacturing; Ultrasonic Waves; Anisotropic Material Properties; ABS; PLA

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MRI Compatible Planar Material Acoustic Lenses

Cited by 16 publications

References 18 publications

Biogenic Composite Filaments Based on Polylactide and Diatomaceous Earth for 3D Printing

Biogenic Composite Filaments Based on Polylactide and Diatomaceous Earth for 3D Printing

Microplastic contamination and pollutant levels in mussels and cockles collected along the channel coasts

Anisotropic Behavior of Ultrasonic Waves in 3D Printed Materials

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