Results 21 to 30 of about 325,469 (173)

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

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

Microscale Freeform Integration by Directed Self Assembly [PDF]

, 2007
Most solid freeform fabrication (SFF) manufacturing processes assemble uniform components such as powder particles or polymer chains to produce desired geometries. Their capacity for producing highly functional parts (integrated actuation, sensing, and
Crane, Nathan, Harmon, Julie, Nellis, Mike, Nolas, George   +3 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

Additive manufacturing: state-of-the-art and application framework [PDF]

, 2017
Additive manufacturing encompasses a class of production processes with increasing applications in different areas and supply chains. Due to its flexibility for production in small batches and the versatility of materials and geometries, this technology ...
de Senzi Zancul, Eduardo, Gonçalves Mançanares, Cauê, Mezzeti Giordano, Caio, Rodrigues, Vinicius Picanco, Sergio Salerno, Mario   +4 more
core   +4 more sources

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

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

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

Fast, facile and thermal damage free nanowelding of Ag nanowire for flexible transparent conductive film by pressure-assisted microwave irradiation

Scientific Reports, 2023
A fast and straightforward fabrication process for producing a robust, flexible, and transparent conductive film was demonstrated using nanowelding of Ag nanowires through pressure-assisted microwave irradiation.
Jong-Min Jeong, Minjeong Sohn, Junghwan Bang, Tae-Ik Lee, Min-Su Kim   +4 more
doaj   +1 more source