Plastic Metal-Free Electric Motor by 3D Printing of Graphene-Polyamide Powder

2018 ◽  
Vol 1 (4) ◽  
pp. 1726-1733 ◽  
Author(s):  
Al C. de Leon ◽  
Bradley J. Rodier ◽  
Cyril Bajamundi ◽  
Alejandro Espera ◽  
Peiran Wei ◽  
...  
Keyword(s):  
3D Printing ◽  
Electric Motor ◽  
Metal Free ◽  
Plastic Metal ◽  
Polyamide Powder

scholarly journals Erratum to: A Study of Metal Free Supercapacitors Using 3D Printing

2018 ◽  
Vol 19 (8) ◽  
pp. 1261-1261
Author(s):  
Anan Tanwilaisiri ◽  
Yanmeng Xu ◽  
David Harrison ◽  
John Fyson ◽  
Milad Arier
Keyword(s):  
3D Printing ◽  
Metal Free

Catalytic performance of a metal-free graphene oxide-Al2O3 composite assembled by 3D printing

2021 ◽  
Vol 41 (2) ◽  
pp. 1399-1406
Author(s):  
Jhonny Azuaje ◽  
Adrián Rama ◽  
Ana Mallo-Abreu ◽  
Mónica G. Boado ◽  
María Majellaro ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
3D Printing ◽  
Catalytic Performance ◽  
Metal Free ◽  
Al2o3 Composite ◽  
Free Graphene

Metal-free current collectors based on graphene materials for supecapacitors produced by 3D printing

2017 ◽  
Vol 91 (10) ◽  
pp. 1966-1970 ◽  
Author(s):  
S. A. Baskakov ◽  
Yu. V. Baskakova ◽  
N. V. Lyskov ◽  
N. N. Dremova ◽  
Yu. M. Shul’ga
Keyword(s):  
3D Printing ◽  
Current Collectors ◽  
Metal Free ◽  
Free Current

scholarly journals Present state of 3D printing from glass

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Vlastimil Hotař ◽  
Marie Stará ◽  
Veronika Máková ◽  
Barbora Nikendey Holubová
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Additive Technologies ◽  
Transparent Glass ◽  
Current State ◽  
Plastic Metal ◽  
Valuable Method ◽  
Specific Shape ◽  
High Degree ◽  
And Robotics

Abstract This paper deals with the issue of additive technologies using glass. At the beginning, our research dealt with a review of the current state and specification of potentially interesting methods and solutions. At present, this technology is being actively developed and studied in glass research. However, as the project started at the Department of Glass Producing Machines and Robotics, the following text will be more focused on the existing 3D printing machinery and basic technological approaches. Although “additive manufacturing” in the sense of adding materials has been used in glass manufacturing since the beginning of the production of glass by humans, the term additive manufacturing nowadays refers to 3D printing. Currently, there are several approaches to 3D printing of glass that have various outstanding advantages, but also several serious limitations. The resulting products very often have a high degree of shrinkage and rounding (after sintering), and specific shape structures (after the application in layers), but they generally have a large number of defects (especially bubbles or crystallization issues). Some technologies do not lead to the production of transparent glass and, therefore, its optical properties are significantly restricted. So far, the additive manufacturing of glass do not produce goods that are price competitive to goods produced by conventional glass-making technologies. If 3D glass printing is to be successful as an industrial and/or highly aesthetically valuable method, then it must bring new and otherwise unachievable features and properties, as with 3D printing of plastic, metal, or ceramics. Nowadays, these technologies promise to be such a tool and are beginning to attract more and more interest.

scholarly journals A Study of Metal Free Supercapacitors Using 3D Printing

2018 ◽  
Vol 19 (7) ◽  
pp. 1071-1079 ◽  
Author(s):  
Anan Tanwilaisiri ◽  
Yanmeng Xu ◽  
David Harrison ◽  
John Fyson ◽  
Milad Arier
Keyword(s):  
3D Printing ◽  
Metal Free

scholarly journals Monitoring of the Impacts of Used Materials for Resulting Attributes of an Electric Motor Created via Additive Technology

TEM Journal ◽  
2020 ◽  
pp. 826-830
Author(s):  
Jozef Török ◽  
Martin Pollák ◽  
Monika Töröková ◽  
Zuzana Murčinková ◽  
Marek Kočiško
Keyword(s):  
Magnetic Field ◽  
3D Printing ◽  
Electric Motor ◽  
Additive Technologies ◽  
Additive Technology ◽  
The Individual ◽  
The Magnetic Field

The article discusses the possibilities of production of a brushless electric motor with usage of additive technologies and verification the functionality of the design. A few electromotor stators have been produced by 3D printing. They were made of PLA plastic with different admixtures to increase the intensity of the magnetic field. The contribution at the end offers a comparison comprising the individual measurements and the efficiency of the electric motor.

scholarly journals Experimental study on properties of mechanical resistance of polyamide in clay soil

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
S.V. Sivapriya ◽  
J. Gokul Krishnan ◽  
Bijivemula Sruthi Reddy ◽  
R. Roshan ◽  
Syed Mohammed
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
3D Printing ◽  
Clay Soil ◽  
Plastic Waste ◽  
Clay Soils ◽  
Mechanical Resistance ◽  
Printing Industry ◽  
Polyamide Powder

The presence of clay soil causes problems at the base of the structure: it swells when wet and shrinks when dry, which provides a reduction in the resistance to cutting of the soil. Plastic waste in the form of polyamide powder (PA-12) from the 3D printing industry can be used to improve the mechanical properties of the soil. This experimental study is an attempt to combine these two objectives of stabilizing the soil by using waste PA-12. The mechanical and shear resistant properties gave us confidence in choosing PA-12 as a stabilizer in clay soils, making them composite soils.

The Shadow Widths of Very Small Particles are Formed Independently of the Metal Cap Build Up on the Particle

1981 ◽  
Vol 39 ◽  
pp. 568-569
Author(s):  
George C. Ruben
Keyword(s):  
Gold Particle ◽  
Film Surface ◽  
Small Particles ◽  
Geometric Process ◽  
Metal Free ◽  
Shadow Area

The formation of shadows behind small particles has been thought to be a geometric process (GP) where the metal cap build up on the particle creates a shadow width the same size as or larger than the particle. This GP cannot explain why gold particle shadow widths are generally larger than the gold particle and may have no appreciable metal cap build up (fig. 1). Ruben and Telford have suggested that particle shadow widths are formed by the width dependent deflection of shadow metal (SM) lateral to and infront of the particle. The trajectory of the deflected SM is determined by the incoming shadow angle (45°). Since there can be up to 1.4 times (at 45°) more SM directly striking the particle than the film surface, a ridge of metal nuclei lateral to and infront of the particle can be formed. This ridge in turn can prevent some SM from directly landing in the metal free shadow area. However, the SM that does land in the shadow area (not blocked by the particle or its ridge) does not stick and apparently surface migrates into the SM film behind the particle.

Recent advancement in the electrocatalytic synthesis of ammonia

Nanoscale ◽  
2020 ◽  
Vol 12 (15) ◽  
pp. 8065-8094 ◽  
Author(s):  
Xudong Wen ◽  
Jingqi Guan
Keyword(s):  
Metal Oxide ◽  
Oxide Catalysts ◽  
Single Atom ◽  
Metal Oxide Catalysts ◽  
Metal Free ◽  
Recent Advancement ◽  
Nanocomposite Catalysts

Different kinds of electrocatalysts used in NRR electrocatalysis (including single atom catalysts, metal oxide catalysts, nanocomposite catalysts, and metal free catalysts) are introduced.

Transition-metal-free catalytic hydroboration reduction of amides to amines

2020 ◽  
Vol 7 (21) ◽  
pp. 3515-3520
Author(s):  
Wubing Yao ◽  
Jiali Wang ◽  
Aiguo Zhong ◽  
Shiliang Wang ◽  
Yinlin Shao
Keyword(s):  
Transition Metal ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Value Added ◽  
Metal Free

The selective catalytic reduction of amides to value-added amine products is a desirable but challenging transformation.

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