Prediction model and compensation method for curing shrinkage of inkjet 3D printing parts

Article Thermodynamics

Droplet Evaporation on Hot Micro-Structured Superhydrophobic Surfaces: Analysis of Evaporation from Droplet Cap and Base Surfaces

Wenge Huang et al.

Summary: This study experimentally and theoretically investigates the evaporation of sessile water droplets on hot micro-structured superhydrophobic surfaces. The effects of substrate roughness and temperature on droplet evaporation are analyzed using a comprehensive thermal circuit model. The study distinguishes and systematically studies the heat and mass transfer from both the droplet cap and base surfaces during evaporation. The results show that the decrease of evaporation rate from the droplet base contributes most to the overall decreasing heat transfer rate during constant contact radius mode of evaporation.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

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Review Physics, Multidisciplinary

Wetting and evaporation of multicomponent droplets

Zhenying Wang et al.

Summary: Wetting and evaporation of sessile droplets are widespread phenomena with significant implications in various industrial and everyday processes. This paper provides a comprehensive review of the physical and physicochemical mechanisms underlying the wetting and spreading of multicomponent droplets, particularly focusing on volatile multicomponent droplets. The paper also summarizes the experimental and numerical methodologies used to study these complex droplets, including their application conditions, accuracy, resolution, and limitations. Furthermore, the authors discuss the importance of exploring the interacting mechanisms with complex droplets and highlight the potential innovations in cutting-edge applications such as 3D printing, self-cleaning, digital microfluidics, cellular sorting, and biomedical diagnosis.

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS (2022)

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Article Thermodynamics

Analysis of the correction factors and coupling characteristics of multi-droplet evaporation

Qingzhu Liu et al.

Summary: In this paper, the multi-droplet evaporation process is simplified and corrected by introducing a correction factor and an influence threshold. The study investigates the effect of droplet interactions on the evaporation process. The results show that droplet interactions slow down the evaporation rate, and droplets with larger sizes and smaller spacing have a greater inhibitory effect on the studied droplet.

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER (2022)

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Article Engineering, Environmental

Computational and experimental investigations on the evaporation of single and multiple elongated droplets

Akam Aboubakri et al.

Summary: This study provides experimental investigation on the evaporation of high aspect ratio elongated droplets for the first time. A fully coupled model is developed and validated, considering all instabilities in both liquid and gas phases. The results show that droplet evaporation dynamics dramatically changes with droplet size, shape, and distance between adjacent droplets.

CHEMICAL ENGINEERING JOURNAL ADVANCES (2022)

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Review Chemistry, Multidisciplinary

Inkjet 3D-printing of functional layers of solid oxide electrochemical reactors: a review

S. S. Kawale et al.

Summary: This article reviews the 3D inkjet printing technology for the functional layers of solid oxide electrochemical reactors, discussing its advantages in terms of material waste and environmental issues. The ink formulation, reactor fabrication, and electrochemical performance are also covered. Furthermore, the challenges faced by 3D inkjet printing technology are discussed.

REACTION CHEMISTRY & ENGINEERING (2022)

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Article Physics, Applied

Interferometric measurement of co-operative evaporation in 2D droplet arrays

Andrew M. J. Edwards et al.

Summary: This study introduces a new interferometric technique for precise measurements of droplet evaporation rates, revealing that the evaporation rate is highly dependent on the position of the droplet within the array and its confinement. The results are in good quantitative agreement with a recent analytical model of cooperative evaporation rates.

APPLIED PHYSICS LETTERS (2021)

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Article Engineering, Mechanical

Design for the reduction of volume shrinkage-induced distortion in digital light processing 3D printing

Qiang Zhang et al.

Summary: This study investigated the volume shrinkage-induced distortion of DLP-printed parts through experiments, theoretical modeling, and FEA simulations, with experiments validating the efficiency of the proposed FEA simulations. FEA was further applied to predict shape distortion in printed microfluidic channels and overhanging structures for designing printing parameters based on FEA.

EXTREME MECHANICS LETTERS (2021)

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Review Materials Science, Ceramics

Progress and challenges towards additive manufacturing of SiC ceramic

Rujie He et al.

Summary: The emergence of additive manufacturing technologies has opened up new avenues for the fabrication of SiC ceramic products. This paper reviews the recent developments in additive manufacturing of SiC ceramic, highlights key challenges, and forecasts potential opportunities for the future. The aim is to provide guidance for the additive manufacturing of SiC ceramic and other structural ceramics.

JOURNAL OF ADVANCED CERAMICS (2021)

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Review Chemistry, Multidisciplinary

Well-rounded devices: the fabrication of electronics on curved surfaces - a review

Steven I. Rich et al.

Summary: With the advancement of the Internet of Things and wearable computing, electronics have become increasingly essential in daily life. Traditional electronics, with their rigid angular nature, have faced challenges in integrating with curved surfaces. In recent years, efforts have been made to fabricate electronics on curved surfaces, showing the potential of curved electronics.

MATERIALS HORIZONS (2021)

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Article Mechanics