An Initial Study of Aerosol Jet® Printed Interconnections on Extrusion-Based 3D-Printed Substrates

Vogeler, Frederik; Verheecke, Wesley; Voet, André; Valkenaers, Hans

doi:10.5545/sv-jme.2013.999

Cited by 42 publications

(24 citation statements)

References 22 publications

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“…Nozzle diameter mainly affects the precision and surface roughness of printing objects (Vogeler et al, 2013). Obviously, the pressure of extrusion increased with the reduced diameter of nozzle, and the effects of nozzle diameters on the printing quality of 3D surimi can be seen in Figure 6a-c.…”

Section: Optimization Of Nozzle Diameter Sizementioning

confidence: 98%

Investigation of sweet potato starch as a structural enhancer for three‐dimensional printing of Scomberomorus niphonius surimi

Dong

Huang

Pan

et al. 2019

Journal of Texture Studies

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Three‐dimensional printing (3DP) of surimi requires a structural modifier to achieve a stable construct. This work investigated the effect of addition of sweet potato starch (0–10% wt/wt) on the physical properties (rheological properties, gel strength, water‐holding capacity [WHC], and microstructural characteristics) of surimi gels and the 3D printed behavior of these gels. The results showed that as the starch content increased, the viscosity of the starch–surimi mixture decreased facilitating the flow of the surimi out of the printer nozzle. The surimi gel with 8% sweet potato starch concentration showed good gel strength (2,021.70 g mm), WHC (82.39%), microstructural characteristics, and less cooking loss (1.95%). A comparison of the traditional surimi preparation method with 3DP showed that the surimi gel prepared by a 3D printed construct was softer in gel strength (1,398.65 g mm) and lower in hardness (945.17 g) although showing slightly higher cooking loss (6.76%) and lower WHC (72.66 g) than the conventional product. The results suggest that sweet potato starch can be effectively used as a structural enhancer for 3DP complex‐shaped surimi.

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Section: Optimization Of Nozzle Diameter Sizementioning

confidence: 98%

Investigation of sweet potato starch as a structural enhancer for three‐dimensional printing of Scomberomorus niphonius surimi

Dong

Huang

Pan

et al. 2019

Journal of Texture Studies

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“…where R -line resistance, S -line cross-sectional area, L -line length. The line resistance R was measured using the four-point probe method [30]. For this purpose, four contacts were formed on the surfaces of the silver lines using conductive silver paste PELCO®# 16031 (Ted Pella, Inc., Redding, CA, USA).…”

Section: Substrate Temperaturementioning

confidence: 99%

Aerosol Jet Printing of Silver Lines with A High Aspect Ratio on A Heated Silicon Substrate

et al. 2020

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In this work, we studied the formation of conductive silver lines with high aspect ratios (AR = thickness/width) > 0.1 using the modernized method of aerosol jet printing on a heated silicon substrate. The geometric (AR) and electrical (resistivity) parameters of the formed lines were investigated depending on the number of printing layers (1–10 layers) and the temperature of the substrate (25–300 °C). The AR of the lines increased as the number of printing layers and the temperature of the substrate increased. An increase in the AR of the lines with increasing substrate temperature was associated with a decrease in the ink spreading as a result of an increase in the rate of evaporation of nano-ink. Moreover, with an increase in the substrate temperature of more than 200 °C, a significant increase in the porosity of the formed lines was observed, and as a result, the electrical resistivity of the lines increased significantly. Taking into account the revealed regularities, it was demonstrated that the formation of silver lines with a high AR > 0.1 and a low electrical resistivity of 2–3 μΩ∙cm is advisable to be carried out at a substrate temperature of about 100 °C. The adhesion strength of silver films formed on a heated silicon substrate is 2.8 ± 0.9 N/mm2, which further confirms the suitability of the investigated method of aerosol jet printing for electronic applications.

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“…Morphology. Several researchers have investigated the effect of AJP process parameters on print quality, employing offline characterization techniques [18,[28][29][30][31][32][33]. For example, in a study by Mahajan et al [18], the effects of sheath gas flow rate (ShGFR), carrier gas flow rate (CGFR), and print speed (P S ) on the geometrical and electrical properties of aerosol jet printed lines were investigated.…”

Section: Lack Of Quantifiers Of Linementioning

confidence: 99%

Computational Fluid Dynamics Modeling and Online Monitoring of Aerosol Jet Printing Process

Salary

Lombardi

Tootooni

et al. 2016

Journal of Manufacturing Science and Engineering

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The objectives of this paper in the context of aerosol jet printing (AJP)—an additive manufacturing (AM) process—are to: (1) realize in situ online monitoring of print quality in terms of line/electronic trace morphology; and (2) explain the causal aerodynamic interactions that govern line morphology based on a two-dimensional computational fluid dynamics (2D-CFD) model. To realize these objectives, an Optomec AJ-300 aerosol jet printer was instrumented with a charge coupled device (CCD) camera mounted coaxial to the nozzle (perpendicular to the platen). Experiments were conducted by varying two process parameters, namely, sheath gas flow rate (ShGFR) and carrier gas flow rate (CGFR). The morphology of the deposited lines was captured from the online CCD images. Subsequently, using a novel digital image processing method proposed in this study, six line morphology attributes were quantified. The quantified line morphology attributes are: (1) line width, (2) line density, (3) line edge quality/smoothness, (4) overspray (OS), (5) line discontinuity, and (6) internal connectivity. The experimentally observed line morphology trends as a function of ShGFR and CGFR were verified with computational fluid dynamics (CFD) simulations. The image-based line morphology quantifiers proposed in this work can be used for online detection of incipient process drifts, while the CFD model is valuable to ascertain the appropriate corrective action to bring the process back in control in case of a drift.

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An Initial Study of Aerosol Jet® Printed Interconnections on Extrusion-Based 3D-Printed Substrates

Cited by 42 publications

References 22 publications

Investigation of sweet potato starch as a structural enhancer for three‐dimensional printing of Scomberomorus niphonius surimi

Investigation of sweet potato starch as a structural enhancer for three‐dimensional printing of Scomberomorus niphonius surimi

Aerosol Jet Printing of Silver Lines with A High Aspect Ratio on A Heated Silicon Substrate

Computational Fluid Dynamics Modeling and Online Monitoring of Aerosol Jet Printing Process

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