Name: indirect fabrication of lattice metals with thin sections using centrifugal casting
Uploaded: 2016-05-14T14:00:00
Description: Watch this Scientific Journal Video about Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting at JoVE.com

Diese Studie erhielt Unterstützung von der Forschung Initiation Grant (RIG) des Vizepräsidenten für Forschung und Wirtschaftsentwicklung an der University of North Texas (UNT). Die Autoren danken auch KCIS Co. Ltd für diese Studie teilweise zu unterstützen. Die Unterstützung von PACCAR Technology Institute bei UNT für den Erfolg dieser Publikation wird sehr geschätzt.

1. Planung des Experiments <ol><li> Zeichnen Sie eine Opferstruktur (ein Oktett Fachwerkstruktur mit einem Angusssystem) unter Verwendung von Computer Aided Design (CAD) Software , wie in Abbildung 1 und speichern Sie das CAD - Modell als STL - Datei - Format angezeigt. Hinweis: Die Opferstruktur ist ein integriertes Muster des Oktetts Fachwerkstruktur mit einem Angusssystem, das zum Gießen schließlich geschmolzen wird. Da die Opferstruktur sowohl die Struktur als Oktett-Gerippe enthält und ...

<ol>
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Trans. 46, (2015).</li><li>Chiras, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Structural+Performance+of+Near-Optimized+Truss+Core+Panels.">The Structural Performance of Near-Optimized Truss Core Panels.</a> Solids Struct. 39, 4093-4115 (2002).</li><li>Meisel, N. A., Williams, C. B., Druschitz, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lightweight+Metal+Celluar+Structures+via+in+Direct+3D+Printing+and+Casting.">Lightweight Metal Celluar Structures via in Direct 3D Printing and Casting.</a> Proceedings of the 24th Solid Freeform Fabrication Symposium. , (2013).</li><li>Mun, J., Ju, J., Yun, B. -. G., Chang, B. -. M., Kim, D. -. 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Process. 17, 28-40 (2015).</li><li>Challapalli, A., Ju, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Continuum+Model+for+Effective+Properties+of+Orthotropic+Octet-Truss+Lattice+Materials.">Continuum Model for Effective Properties of Orthotropic Octet-Truss Lattice Materials.</a> Proceedings of the ASME International Mechanical Engineering Congress and Exposition. , (2014).</li><li>Taylor, H. F., Flemings, M. 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Bei herkömmlichen Metallguss, ist es wichtig , das geschmolzene Metall der Fluss glatt und rationalisiert in &quot;laminar&quot; in den Formhohlraum zu halten und lieber vermeiden unregelmäßig und bewegten Strömung im Allgemeinen in einer turbulenten Strömung 27 beobachtet. Dementsprechend ist es wichtig, richtig den Einlass des Angusssystems mit der Drehgeschwindigkeit eines Schleuderarm verbunden zu entwerfen den Fluss von geschmolzenem Metall im Inneren des Gitter Formhöhlung &#39;laminar&#39; aufrec...

Cellular Metalle sind die Metalle aus einem Verbundnetz von festen Streben oder Platten und haben komplexe Mikroarchitekturen mit Hohlräumen 1 aus. Beispiele umfassen sowohl i) zufällig strukturierten stochastischen Schaumstoffen und ii) periodisches zweidimensionalen (2D) Waben und dreidimensionale (3D) Gitterfachwerkkonstruktionen angeordnet. Sie haben Aufmerksamkeit aufgrund ihrer hohen spezifischen Steifigkeit und Festigkeit 1-3 und hohe spezifische Belastbarkeit 4-5, hervorragende Energieabsorption für Stoßbelastung 6, Schalldämmung 7, mögliche Ausgestaltung Wärmeableiter und Wärmetauscher 8. Insbesondere periodisch geordneten Gitterstrukturen haben das Potenzial, die Eigenschaften überlegen mit einer Fähigkeit zu konstruieren, die interne poröse Netzwerk Geometrie zu steuern. Aufgrund ihrer komplexen inneren porösen Netzgeometrie ist es schwierig, zellulare Metalle herzustellen unter Verwendung des herkömmlichen subtraktiven machininG. Als solche haben damit begonnen , die Forscher nach alternativen Methoden suchen zellulären Metallen herzustellen: Gas in Flüssigmetallumformung oder Metallpulver Mischen mit Treibmittel wurden 9 zur Herstellung von stochastischen Metallformen erforscht. Aufgrund des Mangels an Kontrolle über die Zellentopologie, ist es schwierig, mechanische Eigenschaften maßzuschneidern. Alternativ wurden Methoden der Herstellung für periodisch geordneten Zell Metalle untersucht: dünne Bleche aus Metall - Stanzen in eine gewellte Form , gefolgt von ihnen verbinden periodische Strukturen 10 zu schaffen, geschlitzt Verbinden von Metallbleche 11, Extrusion 12, Weben und lodernden Metallfäden Textilien herzustellen 13. Obwohl diese Herstellungsverfahren wiederholbare Muster bieten, werden die Muster noch in der planaren Richtung begrenzt. In dem Bemühen , 3D - Muster Wiederholung zu erzeugen, begann Forscher Additive Manufacturing (AM) unter Verwendung, zB Selective Laser Melting (SLM) 14, Elektronenstrahlschmelzen (EBM) <sup&gt; 15, und Direct-Metall Laser Sintern (DMLS) 16. Trotz ihrer Fähigkeit zur Herstellung 3D komplexen Gittergeometrien bestellt haben , gibt es immer noch einige Einschränkungen: Schwierigkeit Metalle mit hoher Wärmeleitfähigkeit und hohe optische Reflexionsvermögen 17, eine hohe thermische Restspannung 18, schlechte Oberflächengüte mit dem &quot;Balling&quot; Phänomen während Laser- oder Elektronenschmelz mit 19, 20-21 anisotropen Eigenschaften von Teilen durch eine kombinierte Wirkung der Schichtherstellung, anisotropen Bildung von Körnern, Pulver Größe, Leistung und Abtastgeschwindigkeit des Lasers oder Elektronenstrahls 15, hoher Energieverbrauch verursacht wird , etc. Polymer auf Basis AM mit den Metallguss Kombination kann ein alternatives Verfahren bereitzustellen Gitter Metallen herzustellen. Man kann diese &quot;indirekte AM&quot; nennen. Indirekte AM eine Lösung bieten kann, die technischen Probleme der direkten AM von oben genannten Metalle zu überwinden. Mehrere Anstrengungen ma gewesende zur Herstellung von Gitter Metalle mittels indirekter 3D - Druck von Polymeren mit Schwerkraftguss 22-25 AM Kombination, zB eine Feinguss mit Fused Deposition Modeling (FDM) kombiniert , um eine Kristallgitter - Legierung 22-25 oder Sandguss mit einem Sand - Pulver kombiniert herzustellen basierend AM 23. Die Schwerkraftguss erscheint eine technische Herausforderung bleiben zu überwinden - misrun und Porosität durch plötzliche Erstarrung von Metallschmelzen verursacht , wenn sie Netzstrukturen mit scharfen Ecken der Gitterstrukturformen 25-26 erfüllen. Relativ große Oberfläche von Gitterstrukturformen scheint auch plötzliche Abkühlung beizutragen, zu vorzeitigem Erstarren resultierende 25-26. In dieser Studie schlagen wir eine alternative indirekte AM, die die misrun bei der Herstellung von Gitter Metalle überwinden kann - durch eine 3D gemacht Schleuderguss auf einem Gitterformhohlraum gedruckt Gitteropferpolymermuster. Wir verwenden eine digitaleLight Processing (DLP) basierenden 3D-Druckverfahren mit einem Gitterstrukturopferstruktur gefolgt von Schleuderguss von Al und Cu-Legierungen zu bauen. Das Ziel dieser Studie ist es, ein detailliertes Protokoll für die Herstellung von 3D-Gittermetalle, um eine komplexe Form und eine dünne Wandstärke aufweist. Der Hauptbeitrag dieses Prozesses ist es, eine Möglichkeit zu bieten, um die Auswahl von Materialien mit niedrigen Herstellungskosten für die Herstellung von Gittermetalle zu verlängern.

<table>
	<tbody>
		<tr>
			<td>Motorized centrifugal casting machine</td>
			<td>Rey Motorized Centrifugal Casting Machine, Rey Industries Inc.</td>
			<td></td>
			<td>Made in U.S.A. by Rey industries, Inc. Dallas, TX 75220</td>
		</tr>
		<tr>
			<td>Gypsum powder</td>
			<td>Satin Cast 20, FindingKing Kerr</td>
			<td>7960</td>
			<td>Gypsum powder is used to make the investment mixture</td>
		</tr>
		<tr>
			<td>Ployjet 3D printer</td>
			<td>Projet HD3500 Plus, 3D Systems</td>
			<td></td>
			<td>This polymer based 3D printer to print out sacrificial pattern for casting.</td>
		</tr>
		<tr>
			<td>Cartridge materials - UV curable and castable acrylic plastic</td>
			<td>VisiJet Procast, 3D Systems</td>
			<td></td>
			<td>This is castable material that is going to be burn out before casting</td>
		</tr>
		<tr>
			<td>Cartridge materials- support material</td>
			<td>VijiJet S300, 3D Systems</td>
			<td></td>
			<td>This is support material that is going to be removed before pattern assemble</td>
		</tr>
		<tr>
			<td>Ancient Bronze Casting Grain</td>
			<td>Rio Grande</td>
			<td>706051</td>
			<td>This true bronze grain contains no zinc. Highly fluid, it melts quickly, casts cleanly and provides a good balance between strength and durability. The warm, deep-bronze color has rich red undertones, and the alloy takes a good patina. 
			Composition is 90% copper with an amount of tin; fits into the CDA#90700 category. This grain is sold in 1-lb. packages.</td>
		</tr>
		<tr>
			<td>Aluminum Round Wire, 1/8&#34;, 1-Lb. Spool, Dead Soft</td>
			<td>Rio Grande</td>
			<td>134700</td>
			<td>Lightweight and strong, aluminum wire is an economical and versatile choice. Not as bright-white as silver, aluminum offers a warmer tone much like that of platinum. Solder ONLY with low-temp solders such as Stay-Brite; suitable for both pulse-arc and laser welding. This quality aluminum wire is packaged on 1-lb. spools.</td>
		</tr>
		<tr>
			<td>Computer aided design software (Pro-e)</td>
			<td></td>
			<td></td>
			<td>This software can be replaced with the others such as Auto CAD, Catia, and so on.</td>
		</tr>
		<tr>
			<td>ProJet Finisher 1-A</td>
			<td>3D Systems</td>
			<td></td>
			<td>This machine is used to melt the support material.</td>
		</tr>
		<tr>
			<td>160 Watt 2.5 Liters Digital Ultrasonic Cleaner with Timer Heater Rings Tools</td>
			<td>Chicago, Electric, Power Tools</td>
			<td></td>
			<td>85 oz. capacity, Five cleaning cycles: 90, 180, 280, 380 and 480 seconds, Clean with or without heat, Easy-to-read LED digital timer, Clear-view window</td>
		</tr>
		<tr>
			<td>Fan&#160;</td>
			<td>Honeywell Inc.&#160;</td>
			<td>HT-800</td>
			<td>120V A.C., 60Hz., 0.85A. TP</td>
		</tr>
		<tr>
			<td>Paraffin wax for wax sheet - Modeler&#39;s Pink Wax Sheet, 3&#34; by 6&#34;, 24-Ga.</td>
			<td>Rio Grande</td>
			<td>700075</td>
			<td>Sheet wax is flexible and can be cut or formed into any shape. It&#8217;s ideal for designing since you can draw or trace directly onto the sheet; choose green or pink depending on which will best show your designs. High manufacturing standards ensure exceptional consistency and significant price savings. Value is enhanced by larger package quantities at the same price as the smaller packages available elsewhere. Each 8-oz. package contains approximately 30 sheets.</td>
		</tr>
		<tr>
			<td>Paraffin wax for wax stick - Modeler&#39;s Medium Red Sprue Wax, 8-Ga</td>
			<td>Rio Grande</td>
			<td>700741</td>
			<td>A pliable, softer sprue wax than the firm blue. Good for forming gates and sprues and burns out cleanly with no residue.</td>
		</tr>
		<tr>
			<td>Alcohol Lamp</td>
			<td>Rio Grande</td>
			<td>700008</td>
			<td>Use this lamp to heat wax-working tools or as a flame polisher. The heavy glass reservoir has faceted sides to allow it to be tipped for angling the flame. A screw adjustment for the 7&#34; x 3/16&#34; wick controls the height of the flame. A safety cap snuffs the flame and prevents fuel evaporation. For the best flame, use methyl alcohol fuel. Replacement wicks available. Reservoir holds 5 oz. (150ml) of fuel.</td>
		</tr>
		<tr>
			<td>Wax carving tool set - Soft Grip Wax Carvers, Set of 10</td>
			<td>Rio Grande</td>
			<td>700329</td>
			<td>This boxed set offers the best in cutting and shaping technology. Each of these ten high-quality steel wax-carving tools features a 5/16&#34; PVC covered handle that ensures a sure, comfortable grip through hours of work and all have sharp edges for shaping and fine detailing. Sharpen or custom-shape each tool to fit your needs. These tools provide exceptional tool strength and deliver excellent results. This set comes in a hinged, foam-lined wood box.</td>
		</tr>
		<tr>
			<td>Rubber Mixing Bowl, 1-1/2 Qt.</td>
			<td>Rio Grande</td>
			<td>702131</td>
			<td>This highly-flexible vulcanized rubber bowl is easy to grip, will not be marred by a spatula and cleans with ease.</td>
		</tr>
		<tr>
			<td>Pyrex Beaker, 1,000ml</td>
			<td>Rio Grande</td>
			<td>335040</td>
			<td>Ideal for holding and heating bath plating solutions, this genuine Pyrex glass beaker is sturdy and durable.</td>
		</tr>
		<tr>
			<td>Rio Premium Stainless Steel Flask, 2-1/2&#34; dia.</td>
			<td>Rio Grande</td>
			<td>70201514</td>
			<td>This solid, #304-quality stainless steel flask is corrosion-resistant, durable for a long service life and performs under extreme temperature without distortion.</td>
		</tr>
		<tr>
			<td>CAST/T Ceramic Casting Crucible, 450g</td>
			<td>Rio Grande</td>
			<td>705047</td>
			<td>Made exclusively for the CAST/T centrifugal casting machine, this crucible is designed with an angled base that slides into the hinged bracket on top of the casting machine. This brings the crucible into perfect alignment with the center of the flask ring to ensure an error-free pour.</td>
		</tr>
		<tr>
			<td>MyWeigh iBalance 300 Digital Scale</td>
			<td>Rio Grande</td>
			<td>116850</td>
			<td>This scale is used to measure the weight of the sacrificial and sprue system for metal which is going to be used for centrifugal casting.</td>
		</tr>
		<tr>
			<td>Rubber bottom - CAST/T Flask Ring Base</td>
			<td>Rio Grande</td>
			<td>705025</td>
			<td>Specially made for the CAST/T centrifugal casting machine, this rubber base accommodates all Table King flask ring styles, creating a secure, airtight seal throughout the investment process. The center post fits either of the wax disc styles for complete versatility.</td>
		</tr>
		<tr>
			<td>Scotch&#174; Colored Duct Tape, 1 7/8&#34; x 20 Yd., Blue</td>
			<td>OfficeMax&#160;</td>
			<td>22353766</td>
			<td>This scotch tape is used to make sure that the gypsum-water mixture fully covers the assembled sacrificial pattern inside the flask by allowing for extra material above the flask height</td>
		</tr>
		<tr>
			<td>Vacuum casting machine - V.I.C. 12 Tabletop Solid- and Perforated-Flask Casting Machine with The Rio Assistant, 110-Volt</td>
			<td>Rio Grande</td>
			<td>70511814</td>
			<td>The V.I.C. 12 casting machine offers all the latest technical innovations for efficient, productive vacuum investing and casting. Designed to meet the demands of medium-sized casting operations, this machine includes a powerful 1/2hp, 5cfm vacuum pump for effective vacuuming and outstanding casting results. The V.I.C. 12 casts small or large flasks. Includes an adapter table that accepts standard solid flasks up to 5&#34; x 7&#34; high and is mounted on rubber feet for stability.</td>
		</tr>
		<tr>
			<td>Furnace for burn out sacrificial pattern -Rio Model 1000 Enameling Kiln with Nine Program Controller</td>
			<td>Rio Grande</td>
			<td>703121</td>
			<td>The Rio enameling kiln features three pre-set firing temperatures for enamels and six that you can define. Use the exclusive Rio controller to set and maintain firing temperatures. Perfect for all types of enameling, including tall pieces. Includes ample space for firing and an easy-latch door that will not jar your enamels when opening and closing. Also suitable for metal clay, glass and ceramics. Galvanized steel case with high-temperature insulating firebrick keeps them cool. Element protected in recessed groove. Includes user instructions.</td>
		</tr>
		<tr>
			<td>Smith Complete Little Torch Acetylene and Oxygen System</td>
			<td>Rio Grande</td>
			<td>500030</td>
			<td>Get everything you need to equip your shop for soldering and brazing. Use Little Torch systems for gold 
			or silver soldering, brazing and casting applications. Complete every soldering and melting job with confidence and ease! This system accepts all Little Torch accessory tips for melting, brazing and large soldering jobs and is a staple for every jeweler.</td>
		</tr>
		<tr>
			<td>Heat-Resistant Safety Apron</td>
			<td>Rio Grande</td>
			<td>750160</td>
			<td>The specially designed apron has an 800&#176;F (427&#176;C) temperature resistance. Its reflective finish repels hot metal splashes and helps insulate the wearer from heat.</td>
		</tr>
		<tr>
			<td>Radnor Heat-Resistant Gloves</td>
			<td>Rio Grande</td>
			<td>350050</td>
			<td>These flexible, heat-resistant gloves are ideal for enameling projects, allowing you to grip even small tongs securely. Blue, shoulder-split leather gloves are made of tough cowhide and lined with cotton and foam, and have reinforced thumb wings.</td>
		</tr>
		<tr>
			<td>Platinum Soldering Glasses, #7</td>
			<td>Rio Grande</td>
			<td>113914</td>
			<td>Protect yourself and your employees when soldering platinum. Comfortable glasses feature adjustable earpieces and 52mm IR green polycarbonate #7 lenses. The #7 lens is approved by The Platinum Guild.</td>
		</tr>
		<tr>
			<td>Economy Light-Duty Flask Tongs</td>
			<td>Rio Grande</td>
			<td>704026</td>
			<td>Constructed of bent steel, these tongs are designed to handle flasks 3-1/2&#34; or less in diameter. The small-angle notches grip smaller flask sizes and the larger, rounded contour area securely holds larger flasks.</td>
		</tr>
		<tr>
			<td>Separating Screen Bucket</td>
			<td>Rio Grande</td>
			<td>201360</td>
			<td>15&#34;-diameter, 11-1/2&#34;-deep</td>
		</tr>
		<tr>
			<td>Sand blaster - Econoline - 101701CB-A - Free-Standing Cabinets Workspace Width (Inch): 60 Workspace Depth (Inch): 48</td>
			<td>MSC industrial supply Co.&#160;</td>
			<td>223818</td>
			<td>Ree-Standing Cabinets; Workspace Width (Inch): 60; Workspace Depth (Inch): 48; Workspace Height (Inch): 40; Air Requirement: 12 CFM @ 80 psi; Overall Cabinet Width (Inch): 65; Maximum Cabinet Depth (Inch): 86</td>
		</tr>
		<tr>
			<td>Johnson&#39;s Baby Oil Shea &#38; Cocoa Butter&#160;</td>
			<td>Wal-Mart</td>
			<td>260074132</td>
			<td>This baby&#160; oil is used for removing the residue of the support material for the castable sacrificial pattern using Digital Ultrasonic Cleaner.</td>
		</tr>
		<tr>
			<td>German 4&#34; Saw Frame and Saw Blade Kit</td>
			<td>Rio Grande</td>
			<td>110112</td>
			<td>Quality, German-made frames are our most popular saw frames, and this frame includes a sampler pack of Rio German saw blades! The adjustable saw frame allows you to achieve the blade tension you want. Throat depth is 102mm (4&#34;). Saw blades have rounded backs that make cutting curves and corners easy and are made from hardened, tempered steel.</td>
		</tr>
	</tbody>
</table>

indirect fabrication of lattice metals with thin sections using centrifugal casting

Eines der typischen Methoden 3D-Gitter Metalle herzustellen ist die direkte Metall-Additive Manufacturing (AM) Verfahren wie Selective Laser Melting (SLM) und Elektronenstrahlschmelzen (EBM). Trotz ihrer potentiellen Verarbeitungsfähigkeit hat das direkte AM Verfahren mehrere Nachteile, wie hohe Kosten, schlechte Oberflächengüte von Endprodukten, die Beschränkung in der Materialauswahl, hohe thermische Beanspruchung, und anisotropen Eigenschaften der Teile. Wir schlagen vor, eine kosteneffektive Methode 3D-Gitter Metallen herzustellen. Das Ziel dieser Studie ist es, ein detailliertes Protokoll für die Herstellung von 3D - Gittermetalle , um eine komplexe Form und eine dünne Wandstärke aufweist, beispielsweise Oktett - Gerippe aus Al und Cu - Legierungen mit einer Elementarzellenlänge von 5 mm und einer Zellwandstärke von 0,5 mm. Eine Gesamt experimentelle Verfahren ist in acht Abschnitte unterteilt: (a) 3D-Druck von Opferstrukturen (b) Schmelz von Trägermaterialien (c) Entfernen von Rückständen von Trägermaterialien (d) Muster assembly (e) Investitionen (f) Burn-out von Opferstrukturen (g) Schleuderguss (h) Nachbearbeitung für Endprodukte. Die vorgeschlagene indirekte AM - Technik bietet das Potenzial , ultraleichten Gitter Metalle herzustellen;. B. Gitterstrukturen mit Al - Legierungen. Es scheint, dass die Prozessparameter sollten richtig in Abhängigkeit von Material und Gittergeometrie gesteuert werden, durch die indirekte AM Technik, um die Endprodukte der Oktett-Gerippe Metallen zu beobachten.

Der indirekten additive Herstellungs in dem Protokoll beschrieben, Al und Cu - Legierungen wurden zur Herstellung von Oktett - Gerippe Metalle verwendet, wie in Figur 1 gezeigt , um die gesamte Gießvorgang in Abbildung 2 zusammengefasst ist das Verfahren besteht aus acht Abschnitten:.. (A) Opfer Musterdrucken (b) Schmelz aus Trägermaterial (c) Entfernen des Restes des Trägermaterials (d) Modellanordnung (e) Anlagen (f) Ausbrennen von Opferstrukturen (...

Watch this Scientific Journal Video about Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting at JoVE.com

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Ein indirektes additive Herstellungsverfahren eine 3D-Druck von Polymeren mit einer Schleuderguss Kombination zum Herstellen 3D-Oktett-Gerippe Metalle (Al und Cu-Legierungen) mit einer Einheitszellenlänge von 5 mm mit einer Wanddicke von 0,5 mm beschrieben.

Indirekte Herstellung von Lattice Metals mit Dünnschliffen Mit Schleuderguss

One of the typical methods to manufacture 3D lattice metals is the direct-metal additive manufacturing (AM) process such as Selective Laser Melting (SLM) ...

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SCIENTISTS IN ACTION

Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping

Polykristalline Silizium-Dünnschicht-Solarzellen mit Plasmonische-enhanced Light-Trapping

One of major approaches to cheaper solar cells is reducing the amount of semiconductor material used for their fabrication and making cells thinner. To ...

Forschung

Ingenieurwesen

Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores

Erkennung und Wiedergewinnung von Palladium, Gold und Kobalt-Metalle aus der Urban-Mine mit Hilfe neuartiger Sensoren / Adsorbentien mit nanoskaligen Wagon-Rad-förmigen Poren Ausgewiesene

Developing low-cost, efficient processes for recovering and recycling palladium, gold and cobalt metals from urban mine remains a significant challenge in ...

Speciation and Bioavailability Measurements of Environmental Plutonium Using Diffusion in Thin Films

Speziation und Bioverfügbarkeit Messungen der Umwelt Plutonium Mit Diffusion in dünnen Schichten

The biological uptake of plutonium (Pu) in aquatic ecosystems is of particular concern since it is an alpha-particle emitter with long half-life which can ...

Fabrication of Low Temperature Carbon Nanotube Vertical Interconnects Compatible with Semiconductor Technology

Herstellung von Niedertemperatur-Carbon Nanotube Vertikale Verbindungen Kompatibel mit Halbleitertechnik

We demonstrate a method for the low temperature growth (350 &#176;C) of vertically-aligned carbon nanotubes (CNT) bundles on electrically conductive ...

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires

Ein Herstellungsverfahren für hochverstreckbare Leiter mit Silber Nanodrähte

Stretchable electronics are identified as a key technology for electronic applications in the next generation. One of the challenges in fabrication of ...

Capillary-based Centrifugal Microfluidic Device for Size-controllable Formation of Monodisperse Microdroplets

Kapillar-basierten Kreisel Mikrofluidik-Vorrichtung zur Größe steuerbare Bildung von monodispersen Mikrotröpfchen

Here, we demonstrate a simple method for the rapid production of size-controllable, monodisperse, W/O microdroplets using a capillary-based centrifugal ...

Fabrication of White Light-emitting Electrochemical Cells with Stable Emission from Exciplexes

Die Herstellung von Weißlichtemittierenden elektrochemischen Zellen, die mit stabile Emission von Exciplexe

The authors present an approach for fabricating stable white light emission from polymer light-emitting electrochemical cells (PLECs) having an active ...

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

Herstellung von periodischen Gold Nanocup Arrays mit kolloidalen Lithographie

Within recent years, the field of plasmonics has exploded as researchers have demonstrated exciting applications related to chemical and optical sensing ...

Fabrication of Ultra-thin Color Films with Highly Absorbing Media Using Oblique Angle Deposition

Herstellung von ultra-dünnen Farbfilm mit stark absorbierenden Medien mit schrägen Winkel Deposition

Ultra-thin film structures have been studied extensively for use as optical coatings, but performance and fabrication challenges remain.&#160; We present ...

Fabrication of Soft Pneumatic Network Actuators with Oblique Chambers

Herstellung von weichen pneumatische Netzwerk Aktoren mit schrägen Kammern

Soft pneumatic network actuators have become one of the most promising actuation devices in soft robotics which benefits from their large bending ...