Article
Materials Science, Ceramics
Megane Bernard, Vincent Pateloup, Damien Passerieux, Dominique Cros, Valerie Madrangeas, Thierry Chartier
Summary: Additive manufacturing technology enables the production of complex 3D parts. A hybrid additive machine has been developed to manufacture ceramic/metal parts, and the co-debinding and co-sintering cycles have been optimized for quality assurance. However, the lack of dimensional accuracy in the metallic network leads to deviations in frequency responses compared to simulations.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Manufacturing
Jigang Huang, Qin Qin, Cheng Wen, Zhuoxi Chen, Kunlan Huang, Xia Fang, Jie Wang
Summary: A novel strategy for multi-directional slicing is reported in this study, which is simple, accurate, and efficient. The slicing plane of each layer is determined directly, and the geometric relationship is used to evaluate the optimal slicing plane for each layer. A method for searching the optimal slicing plane with a cost-effective computation is also provided. The proposed dynamic slicing algorithm is compared with uniform-directional slicing to verify its performance.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Ivan Karlo Cingesar, Marijan-Pere Markovic, Domagoj Vrsaljko
Summary: Additive manufacturing allows for simple and cost-effective production of customizable 3D-components. This study investigates the influence of 3D-printing settings, post-processing conditions, and the size and shape of test samples on the mechanical, thermal, and physico-chemical properties. The findings highlight the importance of printing angle and layer thickness in determining tensile strength.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Fen Chen, Ya-Ru Wu, Jia-Min Wu, Hao Zhu, Shuang Chen, Shuai-Bin Hua, Zi-Xuan He, Chang-Yu Liu, Jun Xiao, Yu-Sheng Shi
Summary: This study prepared ZrO2-Al2O3 bioceramics using SL technology, showing excellent mechanical properties and biocompatibility suitable for all-ceramic restorations, with great application prospects in dental field.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Nicole Kleger, Simona Fehlmann, Seunghun S. Lee, Cyril Denereaz, Martina Cihova, Nevena Paunovic, Yinyin Bao, Jean-Christophe Leroux, Stephen J. Ferguson, Kunal Masania, Andre R. Studart
Summary: This article reports a universal manufacturing platform that utilizes photocurable resins and printed salt structures as leachable molds to shape materials into complex geometries. Through systematic investigation of the printing, debinding, and sintering steps, suitable ink formulations for crack-free salt templates are identified. By infiltrating the sintered molds and leaching the templates, complex-shaped architectures are created from various compositions.
ADVANCED MATERIALS
(2022)
Article
Engineering, Manufacturing
Ketki M. Lichade, Erina Baynojir Joyee, Yayue Pan
Summary: Video Projection-based Stereolithography (VP-SL) is a fast, low-cost, and high-resolution additive manufacturing process, but faces issues such as manufacturing defects and size constraints. This paper introduces a Gradient Light Video Projection-based Stereolithography (GLVP-SL) process that enables continuous fabrication of 3D solid objects with controlled exposure energy. The new process uses three mask images with unique grayscale distributions for each layer, and an optimization model is developed to determine the best grayscale distribution pattern for desired solid structure size and density. Experimental results show that GLVP-SL can produce void-free 3D solid objects with good surface quality.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Chemistry, Multidisciplinary
Kerr D. G. Samson, Veronica Hidalgo-Alvarez, Tim R. Dargaville, Ferry P. W. Melchels
Summary: Vat polymerization enables accurate and fast fabrication of personalized implants and devices. However, finding flexible and tough resorbable materials for biomedical applications remains a challenge. This study presents a formulation that can be 3D printed with high accuracy using vat polymerization, resulting in tough, degradable, and non-toxic materials. By tuning the ratio of components, a wide range of properties can be achieved. The use of benzyl alcohol as a solvent allows for low-cost desktop 3D printing, with good cell attachment and proliferation. This new 3D printable material opens up opportunities in biomedical engineering and personalized medicine.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Maksims Jurinovs, Anda Barkane, Oskars Platnieks, Sergejs Beluns, Liga Grase, Reiner Dieden, Mariapaola Staropoli, Daniel F. Schmidt, Sergejs Gaidukovs
Summary: With the progress of additive manufacturing and the widespread use of 3D printing technology, it is important to focus on environmentally and economically sustainable materials. This study utilizes vegetable oil-based resins with a low concentration of nanocellulose fibrils and crystals for vat photopolymerization 3D printing. The addition of nanocellulose improves the shelf stability and mechanical performance of the printed specimens. The prepared bio-based resins show promise in competing with petroleum-based resins.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Polymer Science
Jordan T. Sutton, Kalavathy Rajan, David P. Harper, Stephen C. Chmely
Summary: Chemical modification techniques can reduce UV absorption by lignin, leading to improved stiffness and strength in resins when modified lignins are used. However, the thermal stability decreases. Studying these techniques is important for the development of lignin for UV-curing applications and commercial use.
Article
Polymer Science
Manuel Romeis, Dietmar Drummer
Summary: In this research, a dual-cure system based on epoxy resin was developed for SLA additive manufacturing. By combining UV curing and thermal curing, the material achieved superior thermal and mechanical properties. Experimental results demonstrated significant improvement in tensile stress and glass transition temperature as epoxy concentrations increased.
Article
Chemistry, Multidisciplinary
Jorge Sanchez Llorens, Lorenzo Barbera, Ahmet F. Demirors, Andre R. Studart
Summary: A light-based printing platform is reported to shape colloidal glasses into 3D objects with complex geometries and vivid structural color. The photonic properties of the printed objects reflect the locally ordered microstructure of the glass. The platform demonstrates the capability to create 3D objects with isotropic structural color.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Giorgio Scordo, Valentina Bertana, Alberto Ballesio, Rocco Carcione, Simone Luigi Marasso, Matteo Cocuzza, Candido Fabrizio Pirri, Matteo Manachino, Manuel Gomez Gomez, Alessandra Vitale, Angelica Chiodoni, Emanuela Tamburri, Luciano Scaltrito
Summary: The study presents a resin based on PEGDA and PEDOT:PSS for stereolithographic 3D printing, allowing the preparation of conductive 3D objects with complex geometries. This innovative technology offers a versatile approach for VOCs monitoring systems based on cumulative adsorption effects.
Article
Materials Science, Ceramics
Jonathan Raynaud, Vincent Pateloup, Megane Bernard, Delphine Gourdonnaud, Damien Passerieux, Dominique Cros, Valerie Madrangeas, Philippe Michaud, Thierry Chartier
Summary: This study describes the manufacturing process of HTCC components using a hybrid additive manufacturing process combining stereo-lithography and robocasting, showcasing complex geometries for circuit improvement. The mechanical and electrical properties of the components were characterized, and simulated hyper-frequency parameters were compared to actual measured values for validation.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Jianbin Nie, Maoshan Li, Weiwei Liu, Wenli Li, Zhanwen Xing
Summary: Plasticizers play a crucial role in adjusting the rheological behavior and solid loading of ceramic paste, leading to varied macro / micro structure and strength of the green and sintered parts. Among the plasticizers studied, DBP was found to be more effective in reducing viscosity, increasing solid loading, and forming dense ceramic parts without defects in stereolithography-based additive manufacturing.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Pauline Blyweert, Vincent Nicolas, Jan Macutkevic, Vanessa Fierro, Alain Celzard
Summary: In this work, porous carbon structures were obtained using laser stereolithography of acrylate-tannin mixed resins followed by pyrolysis. The mechanical properties of the resulting carbon structures can be modified by adjusting the acrylate/tannin ratio in the resin. The structures exhibit moderate electrical conductivity and broad-band absorption in microwaves, making them suitable for electrochemical or electromagnetic applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)