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  • Three-dimensional comparative study on the accuracy

    Statement of problem: Studies investigating the precision of 3-dimensional (3D) printed casts for fixed prosthodontics are scarce. Purpose: The purpose of this in vitro study was to compare the accuracy and reproducibility of dental casts made by the conventional method and by 3D printing. Material and methods: A master model was designed and fabricated with polyetherketoneketone.

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  • Scalable Three-Dimensional Photobioelectrodes Made

    2021-3-10 · Photobioelectrodes represent one of the examples where artificial materials are combined with biological entities to undertake semi-artificial photosynthesis. Here, an approach is described that uses reduced graphene oxide (rGO) as an electrode material. This classical 2D material is used to construct a three-dimensional structure by a template-based approach combined with a simple spin ...

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  • Three dimensional nanosuperstructures made of two ...

    2019-12-1 · Three-dimensional graphene foams derived from various templates through CVD have demonstrated high surface areas [59,60,152,153]. Those made of Ni foams offer a surface area up to 850 m 2 g −1, which can be modulated by tuning the number of layers deposited with different deposition time and flow rate . However, the intrinsic large pores of ...

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  • The potential of three-dimensional printing

    2019-4-1 · A polymer is stored in a mobile vat/holder. The vat travels up or down following a light/laser source which polymerizes the polymer layer-by-layer (or continuously) into a three-dimensional structure. Polymers Ceramics: Fine resolution High quality: Limited materials Difficult workability Expensive technology: 5–10 , , Inkjet printing

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  • Three-dimensional imaging of polymer materials by

    2014-3-1 · Three-dimensional (3D) imaging of the organisation of complex material systems is one of the most actively developing areas of modern microscopy, and tomography is the main approach [1], [2]. Tomography, in its old Greek meaning, refers to a technique to draw (reconstruct) a section of an object, referring to inner sections as opposed to surfaces.

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  • Modulation, functionality, and cytocompatibility of

    2016-12-1 · 1. Introduction. Three-dimensional (3D) printing technology is positioned to become a key part of a third industrial revolution , , .Current 3D printing technology uses mostly selective laser sintering (SLS), fused deposition modeling (FDM), and digital light processing (DLP) forming methods , .FDM is used universally; common printing strip materials include acrylonitrile butadiene styrene ...

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  • Electrochemically building three-dimensional ... - Polymer

    2019-2-26 · Electrochemically building three-dimensional supramolecular polymer hydrogel for flexible solid-state micro-supercapacitors Xiang Chu a, Haichao Huang a, Haitao Zhang a, **, Hepeng Zhang a, Bingni Gu a, Hai Su a, Fangyan Liu a, Yu Han a, Zixing Wang a, Ningjun Chen a, Cheng Yan a, Wen Deng a, Weili Deng a, Weiqing Yang a, b, * a Key Laboratoryof Advanced Technologiesof Materials …

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  • 3D Printing Industry-The Authority on 3D Printing ...

    2020-4-1 · We used a simple three step procedure of spray coating a ceramic thin film under 25 μm thick, sintering to achieve a necked morphology, and backfilling the ceramic with a polymer electrolyte to create the composite. The sintered ceramic formed a three-dimensional, fully …

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  • A three-dimensional interconnected polymer/ceramic ...

    2020-5-6 · More importantly, the three-dimensional evolution for early-stage polymer aging was demonstrated: faster aggression in the horizontal plane (4.1 × 10 –4 s –1) than in the vertical direction (2.6 × 10 –9 m s –1) for PP films.

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  • Scalable Three-Dimensional Photobioelectrodes Made

    2021-3-10 · Photobioelectrodes represent one of the examples where artificial materials are combined with biological entities to undertake semi-artificial photosynthesis. Here, an approach is described that uses reduced graphene oxide (rGO) as an electrode material. This classical 2D material is used to construct a three-dimensional structure by a template-based approach combined with a simple spin ...

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  • Three‐dimensional chemical reactors: in situ materials ...

    2020-12-11 · Polymer International. Volume 70, Issue 7 p. 964-976. Mini-review. Three-dimensional chemical reactors: in situ materials synthesis to advance vat photopolymerization Daryl W Yee, Corresponding Author. ... We provide a brief overview of the materials that are currently accessible via VP and highlight recent advances in the field.

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  • Electrically Tunable Three-Dimensional Holographic ...

    2018-7-23 · An electrically tunable three-dimensional holographic photonic crystal made of polymer-dispersed liquid crystals was fabricated using a specially designed prism. This prism split a collimated laser beam into four beams which interfered with each other at the base of the prism to form a three-dimensional spatial light intensity pattern. The ...

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  • Mechanically active materials in three-dimensional ...

    N2 - Motivated by the unique structure and outstanding properties of graphene, three-dimensional (3D) graphene-based polymer nanocomposites (3D-GPNCs) are considered as new generation materials for various multi-functional applications. This review presents an overview of the preparation, properties and applications of 3D-GPNCs.

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  • Three-Dimensional Printing: A Novel Technology for

    What is 3D Printing? 3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of …

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  • Three-dimensional graphene-based polymer

    A layer of polymer sheet usually a vinyl is cut using a laser to form the layer of the shape required, it is then glued to another layer of vinyl which is then cut to form the next layer and so on. The advantages are inexpensive materials can be used. the disadvantages are that supports are needed and the edges of the product must be sealed.

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  • Electrically Tunable Three-Dimensional Holographic ...

    2018-7-23 · An electrically tunable three-dimensional holographic photonic crystal made of polymer-dispersed liquid crystals was fabricated using a specially designed prism. This prism split a collimated laser beam into four beams which interfered with each other at the base of the prism to form a three-dimensional spatial light intensity pattern. The ...

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  • Photomobile polymer materials—various three

    2017-9-20 · Three-dimensional (3D) printing, also known as additive manufacturing, is a family of several flexible manufacturing methods that enable creation of structures usually in a layer-by-layer manner. There is a common belief in the 3D printing community that this approach will be able to soon revolutionize the manufacturing approaches in a wide ...

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  • Three-Dimensional Printing: A Novel Technology for

    2020-6-1 · hree-dimensional (3D) scaffolds are commonly used for drug delivery,1,2 investigation of cell behavior and material studies in the field of tissue engineering.3–5 Three-dimensional scaffolds are typically porous, biocompatible and biodegradable materials that serve to provide suitable microenvironments, that is, mechanical support, physical,

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  • Printing Polymer Nanocomposites and Composites in

    Now let's see the various types of polymer materials used in additive manufacturing process and the method by which they are consolidated into a three-dimensional shape. For a more detailed description of the technologies behind computer technology and the …

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  • About Arcam | GE Additive

    2002-9-9 · Photonic-bandgap materials, with periodicity in one, two or three dimensions, offer control of spontaneous emission and photon localization1,2,3. Low-threshold lasing has been demonstrated in two ...

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  • Three-dimensional nanoscale organization of polymer

    2021-6-3 · Materials 6/15/2021 Desktop Metal Qualifies 316l Stainless Steel for High-Volume Manufacturing. With 316L, businesses can produce cost-effective, end-use metal parts for extreme temperature, highly corrosive applications on the world’s fastest metal …

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  • Electrochemically building three-dimensional ... - Polymer

    2019-2-26 · Electrochemically building three-dimensional supramolecular polymer hydrogel for flexible solid-state micro-supercapacitors Xiang Chu a, Haichao Huang a, Haitao Zhang a, **, Hepeng Zhang a, Bingni Gu a, Hai Su a, Fangyan Liu a, Yu Han a, Zixing Wang a, Ningjun Chen a, Cheng Yan a, Wen Deng a, Weili Deng a, Weiqing Yang a, b, * a Key Laboratoryof Advanced Technologiesof Materials …

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  • Three‑dimensional scaffolds for tissue engineering ...

    2020-6-1 · hree-dimensional (3D) scaffolds are commonly used for drug delivery,1,2 investigation of cell behavior and material studies in the field of tissue engineering.3–5 Three-dimensional scaffolds are typically porous, biocompatible and biodegradable materials that serve to provide suitable microenvironments, that is, mechanical support, physical,

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  • Three-dimensional microscale flow of polymer

    For each experiment, the coating's flow was divided into three stages of indentation and then analyzed. The three stages of indentation were chosen based on the tip's height above the glass, where stages 1 through 3 include imaging time points when the tip is 20 to …

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  • Additve Manufacturing for Production and Industry |

    For more than 30 years, we have shown this time and time again across many collaborative projects. The right 3D printing solution for your production including certified materials, consulting and a comprehensive range of services. Additive manufacturing is a key element of the manufacturing of tomorrow.

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  • US5121329A - Apparatus and method for creating

    Apparatus incorporating a movable dispensing head provided with a supply of material which solidifies at a predetermined temperature, and a base member, which are moved relative to each other along 'X,' 'Y,' and 'Z' axes in a predetermined pattern to create three-dimensional objects by building up material discharged from the dispensing head onto the base member at a controlled rate.

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  • US7374712B2 - Method for building three

    The present invention is a method and apparatus for building three-dimensional models by deposition modeling techniques from moisture-sensitive thermoplastics. A feedstock of thermoplastic modeling material is dried to a low moisture content and supplied to a dispensing head of a modeling apparatus. The dry thermoplastic material is heated in a liquifier and deposited in a predetermined ...

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  • How dental crown is made - material, manufacture,

    2017-9-10 · Manufacturing processes are explained in detail. The basic concepts of how to produce manufactured items. Describes the different manufacturing processes and the methods and techniques involved in each of these processes. Discusses the primary consideration and goals in manufacturing. How material properties relate to manufacturing process.

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  • Polymer Inkjet Printing: Construction of Three

    2014-8-14 · possible to produce three dimensional (3D) printing. Three dimensional inkjet printing using polymer inks can be termed ‘solid freeform fabrication’ (SFF) or layered manufacturing. Both terms identify a mold-less manufacturing method and sequential deposition of slices to build up an object. Indeed, the fusion of polymeric materials and ...

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  • Three-dimensional polymer structures fabricated by ...

    2005-12-2 · Polymer optical devices could be an alternative to dielectric or semiconductor devices, since they can be fabricated using low-cost processes with high manufacturing output. This article presents results on the fabrication of polymer optical device-like and three-dimensional structures using the imprint and reversal imprint techniques. This last technique offers the unique advantage of ...

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  • Three-Dimensional Printable Nanoporous Polymer

    Three-Dimensional Printable Nanoporous Polymer Matrix Composites for Daytime Radiative Cooling ... Three-Dimensional Printable Nanoporous Polymer Matrix Composites for Daytime Radiative Cooling ... UV–vis, and part of the FTIR measurements were carried out in the Materials Research Laboratory Central Research Facilities, University of ...

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  • Three-dimensional microscale flow of polymer

    We present an indentation-scope that interfaces with confocal microscopy, enabling direct observation of the three-dimensional (3D) microstructural response of coatings on substrates. Using this method, we compared microns-thick polymer coatings on glass with and without silica nanoparticle filler.

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  • [PDF] A three-dimensional thiophene-annulated

    A three-dimensional thiophene-annulated perylene bisimide as a fullerene-free acceptor for a high performance polymer solar cell with the highest PCE of 8.28% and a VOC over 1.0 V @article{Luo2018ATT, title={A three-dimensional thiophene-annulated perylene bisimide as a fullerene-free acceptor for a high performance polymer solar cell with the ...

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  • A Three-Dimensional Copper Coordination Polymer ...

    2021-3-12 · A three-dimensional (3D) copper-based coordination polymer, ([Cu(H 2 mpca)(tfbdc)], Cu-CP; H 2 mpca = 3-methyl-1H-pyrazole-4-carboxylic acid; H 2 tfbdc = 2,3,5,6-tetrafluoroterephthalic acid), has been synthesized and characterized by IR spectroscopy, thermogravimetric analysis, elemental analysis, and single-crystal X-ray diffraction. In Cu-CP, each Cu(II) ion is located in a triangular ...

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  • Lasing in a three-dimensional photonic crystal of the ...

    2002-9-9 · Photonic-bandgap materials, with periodicity in one, two or three dimensions, offer control of spontaneous emission and photon localization1,2,3. Low-threshold lasing has been demonstrated in two ...

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  • Direct writing of three-dimensional webs | Nature

    2004-3-25 · Direct-write assembly is a powerful way to create three-dimensional microscale structures of arbitrary design and functionality. A variety of inks could be developed using other polyelectrolyte ...

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  • Smooth-On, Inc. | Mold Making & Casting Materials ...

    Then, silver bromide nanoparticles, a superior photosensitizer, were immobilized on the three-dimensional porous framework to construct the three-dimensional porous g-C 3 N 4 /graphene oxide-AgBr photocatalyst with Ag plasmas by solvothermal method.

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