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  • The potential of three-dimensional printing technologies ...

    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 printing of high‐mass loading

    2021-3-29 · Three-dimensional printing of high-mass loading electrodes for energy storage applications. ... 8 However, an electrode consisting of active materials, polymer binders, ... layer thickness, laser power, and scanning speed. The printing materials in the SLS process can be metal, polymer, ceramic, and composites. ...

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  • Polymer matrix composites in 3D printing: A state of art ...

    2020-1-1 · Polymer matrix composites are utilized in surgical equipment, implants and dental prosthetics . Polymer matrix nanocomposites containing carbon nanotubes or TiO2 nanotubes lessen the time of healing of fractured bones. The potential benefits of nanocomposites in diagnostics and treatment of serious diseases are being investigated .

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  • Using of Composite Material in Wind Turbine Blades

    The turbines manufactured from the mid 1980s until the late 1990s were mainly constructed using standard components. After that period, special components started being designed and manufactured for turbine use only. One of the best solutions is using composite materials in wind turbine. Most composites are made up of just two materials.

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  • Development of a 1000 W organic Rankine cycle micro ...

    2019-6-15 · A micro-turbine-generator is designed, analysed, fabricated and tested during this investigation. The micro-turbine-generator includes a radial inflow turbine and a synchronous generator, both mounted in a common shaft. The turbine has two structural parts made of polymeric materials: the impeller and the nozzle body.

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  • Materials for Aircraft Engines - University of Colorado ...

    2018-12-30 · engines. In addition, compositions of materials used in each engine section are summed up in the Appendix. 2. Fan Section The Fan section is responsible for taking air into the engine. Even though the heat restriction is not strict, the fan should be made of light and high-specific-strength materials due to strong centrifugal forces.

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  • High Speed Handpiece - Made-in-China.com

    China High Speed Handpiece catalog of High Quality Dental Air Turbine Standard Head Push Button High Speed Handpiece with Ce, Baistra Supplies High Speed Torque Push Button Ceramic Bearing Dental Lab Handpiece provided by China manufacturer - HENAN …

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  • Additive Manufacturing of Polymer Materials: Progress ...

    The process can be made suitable for most industrial sectors, using a wide range of materials; viz. metallic, ceramic, polymer materials along with combinations in the form of composites, hybrid and graded functional materials and hydrogels, in different physical states including solid, liquid, viscoelastic, and gels.

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  • Three-dimensional printing of hydroxyapatite - ScienceDirect

    2020-1-1 · Additive manufacturing (AM), the “process of joining materials to make objects from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies,” is well defined by the ASTM F42 Technical Committee. It is also known as rapid prototyping or layer manufacturing.

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  • Smart Manufacturing Process of Carbon-Based Low ...

    2020-7-22 · Three-dimensional arrangement of carbon fibers can also be realized using AM techniques. Lewicki et al. (Ref 81) fabricated three-dimensional carbon fiber/polymer composite using a DIW technique with a high degree of fiber alignment. It was observed that 8 wt.% reinforcement of carbon fiber yields a high resolution in the fabricated part.

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  • Three-dimensional-printed molds and materials for ...

    2019-10-30 · Polymer materials are normally used in 3D-printed molds for low volume production. High-temperature resistance, toughness, and hardness are essential for printed molds to stand above the melting temperature of injected materials. ... Stratasys, 3D Printing and Dental Implants: ... Three-dimensional-printed molds and materials for injection ...

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  • Three-dimensional printing with biomaterials in ...

    2020-6-1 · Three-dimensional (3D) printing is widely used in the fabrication of dental prostheses; however, the influence of dental materials used for 3D printing on temporary restoration of fibroblasts in tissues is unclear. Thus, the influence of different dental materials on fibroblasts were investigated. Digital light processing (DLP) type 3D printing was used.

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  • Cytocompatibility of 3D printed dental materials for ...

    2021-5-6 · 1. Introduction. Polymer 3D (three-dimensional) printing has advanced rapidly in recent years with many areas of research now translating to engineered products, especially in medical fields [1,2,3,4].Polymer printing is advantageous for a broad range of medical areas that benefit from the diversity of polymer material characteristics and processing approaches [5,6,7,8]. 3D …

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  • Polymer 3D Printing Review: Materials, Process, and

    2020-1-1 · 15.1. Overview of additive manufacturing. Additive manufacturing (AM), the “process of joining materials to make objects from three-dimensional (3D) model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies,” is well defined by the ASTM F42 Technical Committee. It is also known as rapid prototyping or layer manufacturing.

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  • Three-dimensional printing of hydroxyapatite -

    Gas turbine engines are the most widely used form of propulsion system for modern aircraft (with jet engines being a main type) and have made a large impact on how we travel. In a modern gas turbine, pressurized gas spins the turbine by burning propane, natural gas, kerosene or jet fuel. Prevalent in aerospace, gas turbine engine technology is ...

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  • Gas Turbine Engines | Aerospace | Saint-Gobain Seals

    2021-2-25 · The dental restorative industry has been witnessing a radical transformation in recent years, moving away from the traditional approach towards new alternative materials…

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  • Dimensional stability of short fibre reinforced flowable ...

    2019-7-1 · Materials and Methods. Since the mold temperature could affect the properties of the injected parts, the temperature of 20 gypsum specimens was monitored using the multi-thermocouple system (n = 5). A total of 210 specimens were prepared for mechanical tests according to the ISO standard for denture base polymer (n = 10).

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  • Determination of Polyetheretherketone (PEEK)

    Indian Journal of Engineering & Materials Sciences Vol. 27, April 2020, pp. 179-192 Additive manufacturing of composite materials by FDM technology: A review Andrei Danut Mazurchevici, Dumitru Nedelcu* & Ramona Popa a Gheorghe Asachi, Technical University of Iasi, Blvd Mangeron No. 59A, 700050, Iasi, Romania

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  • Additive Manufacturing of Polymer Materials: Progress ...

    2021-2-28 · The process can be made suitable for most industrial sectors, using a wide range of materials; viz. metallic, ceramic, polymer materials along with combinations in the form of composites, hybrid and graded functional materials and hydrogels, in different physical states including solid, liquid, viscoelastic, and gels.

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  • Flexural Strength of 3D-Printing Resin Materials for ...

    2020-9-8 · materials Article Flexural Strength of 3D-Printing Resin Materials for Provisional Fixed Dental Prostheses Sang-Mo Park 1,y, Ji-Man Park 2,y, Seong-Kyun Kim 1,*, Seong-Joo Heo 1 and Jai-Young Koak 1 1 Department of Prosthodontics and Dental Research Institute, Seoul National University Dental Hospital, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno …

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  • Emerging trends in endodontic irrigation - Dental Journal

    switch that activates the strong and flexible polymer tips. The three-speed sonic motor switch provides options of 10,000, 6,000 and 2,000 cycles per minute (cpm). When the handpiece is activated, the power defaults to 10,000cpm, which research has shown to be the recommended speed …

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  • Three new 3D printing technologies for composites ...

    2016-7-21 · The 3Dynamic Systems print system is adapted from fused deposition modeling (FDM), but operates at a higher temperature than conventional FDM, with materials extruded at 315°C. The printing filament is made from suspending fine ceramic micro fibers in a special thermoplastic polymer that is stable up to 325°C.

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  • Three-dimensional bio-printing and bone tissue engineering ...

    2020-6-3 · Bone grafting has been considered the gold standard for hard tissue reconstructive surgery and is widely used for large mandibular defect reconstruction. However, the midface encompasses delicate structures that are surrounded by a complex bone architecture, which makes bone grafting using traditional methods very challenging. Three-dimensional (3D) bioprinting is a …

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  • Thermal Analysis of Laser-Densified Dental Porcelain ...

    2004-11-16 · Thermal analysis of laser densification of a dental porcelain powder bed has been investigated using a three-dimensional thermal finite element model, which encompasses (i) the incoming laser beam power with a Gaussian distribution, (ii) optical pyrometer simulation in addition to the closed-loop temperature control, (iii) powder-to-solid transition, (iv) temperature …

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  • A three-dimensional microfabrication system for ...

    2008-1-17 · A three-dimensional microfabrication system for biodegradable polymers with high resolution and biocompatibility. Akira Yamada, Fuminori Niikura and Koji Ikuta. Published 17 January 2008 • 2008 IOP Publishing Ltd Journal of Micromechanics and …

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  • What Materials are Available for 3D Printing? A Guide | 3D ...

    2021-4-14 · Such materials are FDA approved and are safe for medical use. They can also be sterilized and so are quite popular for medical devices, surgical planning, implant sizing tools, research, etc. Polymer Powders Nylon Powder (PA11 & PA12) Nylon or PA11 & PA12 are the most popular polymer powder materials used in powder-based 3D printing technology.

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  • The Journal of the Japanese Society for Dental Materials ...

    The dimensional changes of three types of alginate impression materials in various concentrated solutions of the viral disinfectants (sodium hypochlorite, glutaraldehyde, irgasan DP300 wash liquid, irgasan DP 300 soapy water and ethanol) were examined by a non-pressure method using an electronic micrometer, and the optimal immersion time in effective concentrations was …

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  • FEA Based Composite Material Simulation and Design ...

    FEA based Simulation and design allows to choose the correct failure modeling according to the type of micro-structure definition. Enteknograte Engineers are very skilled in design of composite structural parts for crash and impact analysis using advanced finite element tools: • Deformation and damage analysis.

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  • Three-dimensional rans simulation of a high-speed organic ...

    Harinck, J, Pasquale, D, Pecnik, R & Colonna di Paliano, P 2011, ' Three-dimensional rans simulation of a high-speed organic rankine cycle turbine ', First international seminar on ORC power systems, 22/09/11 - 23/09/11 pp. 1-1.

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  • Additive Manufacturing of Polymer Materials: Progress ...

    2021-2-28 · The process can be made suitable for most industrial sectors, using a wide range of materials; viz. metallic, ceramic, polymer materials along with combinations in the form of composites, hybrid and graded functional materials and hydrogels, in different physical states including solid, liquid, viscoelastic, and gels.

    Get Price
  • A review on 3D printed matrix polymer composites: its ...

    2019-12-11 · Additive Manufacturing technology has a significant impact on the modern world because of its ability to fabricate highly complex computerized geometrics. Pure 3D-printed polymer parts have limited potential applications due to inherently inferior mechanical and anisotropic properties. For more utilization and versatility, the addition of fillers has enhanced …

    Get Price
  • The Journal of the Japanese Society for Dental Materials ...

    The dimensional changes of three types of alginate impression materials in various concentrated solutions of the viral disinfectants (sodium hypochlorite, glutaraldehyde, irgasan DP300 wash liquid, irgasan DP 300 soapy water and ethanol) were examined by a non-pressure method using an electronic micrometer, and the optimal immersion time in effective concentrations was …

    Get Price
  • Polymer-Based Composites: An Indispensable Material for ...

    2020-8-17 · Right from the early days, polymer materials have been discovered as being beneficial for various applications but a poor understanding of these materials greatly handicapped their usage. However, with a change in this trend, polymer materials have gradually displaced other materials in most applications. In recent times, due to improved research and knowledge, polymer-based materials …

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  • Emerging trends in endodontic irrigation - Dental Journal

    switch that activates the strong and flexible polymer tips. The three-speed sonic motor switch provides options of 10,000, 6,000 and 2,000 cycles per minute (cpm). When the handpiece is activated, the power defaults to 10,000cpm, which research has shown to be the recommended speed …

    Get Price
  • Composites Classification and Manufacturing Operations: A ...

    2017-11-1 · the manufacturing of utility-scale wind turbine blades.(6) 2. Pultrusion It is one of the technologies to fabricate the polymer composites to be used in many industries such as in aerospace, automotive and construction industries. The high performance pultruded products that are produced by this technique offer high fiber content of at least 70%.

    Get Price
  • What Materials are Available for 3D Printing? A Guide | 3D ...

    2021-4-14 · Such materials are FDA approved and are safe for medical use. They can also be sterilized and so are quite popular for medical devices, surgical planning, implant sizing tools, research, etc. Polymer Powders Nylon Powder (PA11 & PA12) Nylon or PA11 & PA12 are the most popular polymer powder materials used in powder-based 3D printing technology.

    Get Price
  • Development of a Method to Repair Gas Turbine Blades using ...

    2017-2-22 · environment inside the gas turbine, the most common failure modes as well as current methods of blade repair. This investigation includes studying the methods of production of metallic powders and the alloying effects of different elements in our required powder. A brief analysis was made to determine the economic viability for the

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  • US20120193841A1 - Three-dimensional powder molding ...

    A system and a method of fabricating a complex three dimensional part are described. The system comprises a rapid prototyping machine configured to provide a disposable mold having a negative imprint of a complex three dimensional structure, a mixer, an injection molding machine, and a furnace system. A slurry comprising a powder and a binder is introduced into the disposable …

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  • Available Technologies | Technology Commercialization

    Three Dimensional Dental Anatomy Software Program for Dentistry Students. ... Topographically conforming self-fitting garments made of active materials. ... A synthetic polymer that targets cancer cell membranes and works synergistically with existing chemotherapeutic drugs to treat drug-resistant solid tumors.

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  • Stable, even when it gets hot: The ceramic fibers made ...

    2018-7-18 · to form a three-dimensional spatial lat-tice. However, its planes, in which the atoms stack up like stories of a build-ing, act like predetermined breaking points. When overloaded, they tear open like the seam of a piece of cloth. When the fracture finally reaches the neighboring crystal, it rapidly forges ahead. “It propagates at the speed of

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  • A review on 3D printed matrix polymer composites: its ...

    2019-12-11 · Additive Manufacturing technology has a significant impact on the modern world because of its ability to fabricate highly complex computerized geometrics. Pure 3D-printed polymer parts have limited potential applications due to inherently inferior mechanical and anisotropic properties. For more utilization and versatility, the addition of fillers has enhanced …

    Get Price
  • US20190375159A1 - Multi-material three-dimensional

    A multi-material three-dimensional printing apparatus is provided. The provided apparatus includes two or more print stations. Each of the print stations includes a substrate, a transportation device, a dispersion device, a compaction device, a printing device, a fixing device, and a fluidized materials removal device. The apparatus also includes an assembly apparatus in communication with the ...

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  • Composites Classification and Manufacturing Operations: A ...

    2017-11-1 · the manufacturing of utility-scale wind turbine blades.(6) 2. Pultrusion It is one of the technologies to fabricate the polymer composites to be used in many industries such as in aerospace, automotive and construction industries. The high performance pultruded products that are produced by this technique offer high fiber content of at least 70%.

    Get Price
  • A Numerical Study on Performance of Dental Air Turbine ...

    2017-9-1 · Usually, high speed air-turbine dental handpieces operate at 200,000 to 400,000 revolutions per minute [5]. The main part of the dental air turbine is its high speed rotor head consisting of a casing with air inlet and outlet nozzles, impeller, spindle, chuck and bearings in millimeter size, as shown in Fig. 1.

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  • Three-dimensional visualisation of soft biological ...

    Three-dimensional visualisation of soft biological structures by X-ray computed micro-tomography ... it was not until the 1930s that the first attempts were made to image 3D structures with X ... Elliott and Dover, 1982) and could achieve a spatial resolution of ∼10 µm, were typically used to image inorganic materials and the internal ...

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  • Introduction of Fibre-Reinforced Polymers − Polymers

    A system and a method of fabricating a complex three dimensional part are described. The system comprises a rapid prototyping machine configured to provide a disposable mold having a negative imprint of a complex three dimensional structure, a mixer, an injection molding machine, and a furnace system. A slurry comprising a powder and a binder is introduced into the disposable …

    Get Price
  • US20120193841A1 - Three-dimensional powder molding ...

    3D printing or additive manufacturing (AM) technologies create three-dimensional parts from computer-aided design (CAD) models by successively adding material layer by layer until physical part is created. While 3D printing technologies have been around since the 1980s, recent advances in machinery, materials, and software have made 3D printing ...

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