Results 31 to 40 of about 137,861 (305)

Zeolitic Imidazolate Frameworks Serve as an Interface Layer for Designing Bifunctional Bone Scaffolds with Antibacterial and Osteogenic Performance

Nanomaterials, 2023
The integration of hydroxyapatite (HA) with broad-spectrum bactericidal nano-silver within biopolymer-based bone scaffolds not only promotes new bone growth, but also effectively prevents bacterial infections.
Jingxi Huang, Chen Cheng, Youwen Yang, Jun Zan, Cijun Shuai   +4 more
doaj   +1 more source

Robust Additive Manufacturing Performance through a Control Oriented Digital Twin

, 2021
The additive manufacturing process control utilizing digital twins is an emerging issue. However, robustness in process performance is still an open aspect, due to uncertainties, e.g., in material properties.
Alexios Papacharalampopoulos, Panagiotis Stavropoulos, George Chryssolouris, Christos K. Michail   +3 more
core   +1 more source

Analytical modelling for prediction and prevention of overflow occurrence in wire-based additive manufacturing

Virtual and Physical Prototyping
Increasing deposition rate is essential for higher productivity of additive manufacturing (AM). However, a high deposition rate usually requires high heat input to fully melt the fast-fed material, which could lead to defects due to molten material ...
Alireza M. Haghighi, Jialuo Ding, Yongle Sun, Wojciech Suder, Chong Wang, Paul Poulain, Xin Chen, Stewart Williams   +7 more
doaj   +1 more source

In-loop additive manufacturing constraints for open-walled microstructures [PDF]

, 2021
The derivation and integration of novel in-loop additive manufacturing constraints for open-walled microstructures within a multiscale optimization framework is presented.
Robert Hewson, Santer, matthew, Hewson, Robert, Ryan Murphy, Matthew Santer, Murphy, ryan   +5 more
core   +1 more source

Knowledge-based bidirectional thermal variable modelling for directed energy deposition additive manufacturing

Virtual and Physical Prototyping
Directed energy deposition additive manufacturing (DED-AM) has gained significant interest in producing large-scale metallic structural components. In this paper, a knowledge-based machine learning (ML) approach, combining both physics-based simulation ...
Jian Qin, Pradeeptta Taraphdar, Yongle Sun, James Wainwright, Wai Jun Lai, Shuo Feng, Jialuo Ding, Stewart Williams   +7 more
doaj   +1 more source

The Influence of Nanoparticle Dispersions on Mechanical and Thermal Properties of Polymer Nanocomposites Using SLA 3D Printing

Crystals, 2023
The synergistic integration of nanocomposites and 3D printing has opened a gateway to the future and is soon expected to surpass its rivalry with traditional manufacturing techniques.
Mussadiq Shah, Abid Ullah, Kashif Azher, Asif Ur Rehman, Nizami Akturk, Wang Juan, Celal Sami Tüfekci, Metin Uymaz Salamci   +7 more
doaj   +1 more source

4D printing of shape-programmable polymer-derived ceramics via two-stage folding-assisted pyrolysis strategy

Virtual and Physical Prototyping
Polymer-derived ceramics (PDCs) can be used in wide applications due to their high hardness and stable chemical properties. However, these characteristics lead to the challenging controllable deformation of additively manufactured PDCs.
Long Jiang, Chongyu Long, Shufeng Xiong, Xuming Wang, Yan Mo, Jinhui Zeng, Zhiyuan Liu, Changyong Liu, Zhangwei Chen   +8 more
doaj   +1 more source

Grain structure control during metal 3D printing by high-intensity ultrasound

Nature Communications, 2020
3D printing of metals produces elongated columnar grains which are usually detrimental to component performance. Here, the authors combine ultrasound and 3D printing to promote equiaxed and refined microstructures in a titanium alloy and a nickel-based ...
C. J. Todaro, M. A. Easton, D. Qiu, D. Zhang, M. J. Bermingham, E. W. Lui, M. Brandt, D. H. StJohn, M. Qian   +8 more
doaj   +1 more source

Theoretical stiffness limits of 4D printed self-folding metamaterials

Communications Materials, 2022
The 3D stiffness of a self-folded metamaterial structure is limited by the low stiffness required by the folding process. Here, the stiffness limits of self-folding bilayers are theoretically established by a nonlinear model and experimentally validated ...
Teunis van Manen, Vahid Moosabeiki Dehabadi, Mauricio Cruz Saldívar, Mohammad J. Mirzaali, Amir A. Zadpoor   +4 more
doaj   +1 more source

Sintering and additive manufacturing: “additive manufacturing and the new paradigm for the jewellery manufacturer” [PDF]

Progress in Additive Manufacturing, 2016
The use of various sintering technologies, allied to suitable powder metallurgy, has long been the subject of discussion within the global jewellery manufacturing community. This exciting, once theoretical and experimental technology is now undoubtedly a practical application suitable for use by the jewellery industry.
openaire   +1 more source