Advanced Materials & Manufacturing – Page 360

Engineered Nanostructures for High Thermal Conductivity Substrates

Varanasi K.K., Chamarthy P., Chauhan S., de Bock P., Kulkarni A., Mandrusiak G., Rush B., Russ B., Denault L., Weaver S., Gerner F., Leland Q., Yerkes K., Massachusetts Institute of Technology, US

In the DARPA Thermal Ground Plane (TGP) program, GE and its partners, the University of Cincinnati and the Air Force Research Laboratory, are developing a new thermal technology that will enable a monumental thermal technological [...]

Inkjet ink containing inorganic doped semiconductor (ZnS:Mn) nanoparticle pigments

Angelo P.D., Farnood R.R., University of Toronto, CA

A jettable inkjet ink containing dispersed inorganic semiconductor (ZnS:Mn) pigments has been prepared using colloidal synthesis. This ink was deposited using an inkjet printer to form printed lines of luminescent material. Different binder polymers were [...]

Methods & Results from the Cambridge Inkjet Research Centre

Hoath S.D., Martin G.D., Hutchings I.M., University of Cambridge UK, UK

We outline the methods and tools of fluid characterization, drop visualization and drop formation physics that are used at Cambridge. We present recent results and interpretation for drop on demand inkjet printing of some model [...]

Curvilinear Waveforms for Fluid Dispensing

Clark J., Zebra Technologies, US

Piezoelectric micropipettes, a type of drop -on-demand ink jet microdispenser, are typically driven by repetitively pulsed waveforms to cause fluid ejection through a small orifice. To study the effect of drive waveform shape on drop [...]

Electrohydrodynamic Micro-droplet Generation on Both Conducting and Non-conducting Surfaces by Electric Induction

Lee B-S, Lee J-G, Lee B-S, Lee J-G, Cho H.-J., Huh N., Ko C., Samsung Advanced Institute of Technology, KR

There is a rapid growing need of the drop-based delivery of small quantities of bio-functional materials, such as cells. We report a brand-new printing method to generate a single droplet in the range of pL [...]

Micro and Nano Fluidics

Carbon nanotube/fused silica composite with gradient structure and carbon fiber/ fused silica back reflection layers for microwave absorbing application

Zhu Y., Pan Y.B., Guo J.K., Chinese Academy of Sciences, CN

Many investigations have been made to the carbon nanotube (CNT)/pure silica (SiO2) composites for their attractive properties. Our primary work demonstrates the decrease of reflection at interface and the improvement of microwave absorbing efficiency in [...]

From Electrical to Fuel Powered Artificial Muscles

Kozlov M.E., Oh J., Mirfakhrai T., Zhang M., Fang S., Ferraris J.P., Madden J.D.W., Baughman R.H., University of Texas at Dallas, US

A number of materials ranging from carbon nanotube yarns and sheets to shape memory alloys (SMA) have been explored for the application in the area of artificial muscles (actuators). It was found that if powered [...]

Nanotube Grafting in Porous Solids for High Surface Devices

Mukhopadhyay S.M., Karumuri A., Barney I.T., Wright State University, US

Biological systems make use of hair and capillary type hierarchical structures to create more surface area in limited space, but very few synthetic materials use this concept. Geometrical calculations show that if hierarchical substrates are [...]

Preparation and Electrochemical Characterization of Porous SWNT-PPy Nanocomposite Sheets for Supercapacitor Applications

Oh J., Kozlov M.E., Baughman R.H., University of Texas at Dallas, US

Highly porous sheets comprised of Single Walled Carbon Nanotubes and doped polypyrrole (SWNT-PPy) were prepared by vacuum filtration of SWNT-PPy methanol dispersions. The employed preparation procedure is an extension of conventional bucky-paper fabrication method for [...]