Journal of Micro and Nano: Recent submissions
Now showing items 321-340 of 361
-
Formation of Carbon Nanoscrolls During Wedge Based Mechanical Exfoliation of HOPG
(The American Society of Mechanical Engineers (ASME), 2014)Carbon nanoscrolls (CNS) of various forms are observed when highly ordered pyrolytic graphite (HOPG) is mechanically exfoliated using a wedge. We present two hypothesis of how such scrolls form. The first hypothesis is ... -
System Design and Process Optimization for the Inkjet Printing of PEDOT:Poly(styrenesulfonate)
(The American Society of Mechanical Engineers (ASME), 2014)A laboratoryscale inkjet printing system was designed for printing polymeric inks with the focus on PEDOT:PSS, a transparent, electrically conductive polymer. PEDOT:PSS inks with 0 and 1 wt. % Surfynol were tested ... -
Experimental and Simulation of Friction Effects in an Open Die Microforging/Extrusion Process
(The American Society of Mechanical Engineers (ASME), 2014)Friction effects during a progressive microforming process for production of micropins of various diameters were experimentally investigated and were analytically modeled, using a hybrid friction model. The response surface ... -
Laser Induced Chemical Deposition of Ferrihydrite Nanotubes: Exploring Growth Rate and Crystal Structure
(The American Society of Mechanical Engineers (ASME), 2014)This paper is one of three papers exploring and confirming a novel high rate nanomanufacturing method using laser to induce and accelerate chemical synthesis and deposition of nanotubes. We have shown elsewhere that the ... -
Characterization of Delamination in Laser Microtransfer Printing
(The American Society of Mechanical Engineers (ASME), 2014)Microtransfer printing is rapidly emerging as an effective method for heterogeneous materials integration. Laser microtransfer printing (LMTP) is a noncontact variant of the process that uses laser heating to drive the ... -
Modification of Surface Properties on Cemented Carbide Alloys Through Mirror Quality Finish Grinding
(The American Society of Mechanical Engineers (ASME), 2013)In this study, efficient, highprecision grinding of cemented carbide alloys using a specific grinding wheel was performed, and the ground surface characteristics were investigated in detail. The results showed that final ... -
A Novel Lapping Method for High Precision Balls Based on Variable Radius V Groove
(The American Society of Mechanical Engineers (ASME), 2013)The precision ball is the most key component of ball bearing, which is widely used in many precision mechanical fields. This paper presents a variableradius Vgroove lapping method since this method can make the spin angle ... -
Microscale Drilling of Bulk Metallic Glass
(The American Society of Mechanical Engineers (ASME), 2013)The microscale drilling performance of a Zrbased bulk metallic glass (BMG) is investigated in this paper. Crystallization, drill temperature, axial force, spindle load (SL), acoustic emissions (AE), chip morphology, hole ... -
Parametric Investigation Into the Fabrication of Disk Microelectrodes by Electrochemical Micromachining
(The American Society of Mechanical Engineers (ASME), 2013)In electrochemical micromachining (EMM) of microfeatures using straight cylindrical microtools, sidewalls of the structure tapers as depth increases. Disk microtool electrodes are used to minimize the taper formation during ... -
Influence of Lapping Residual Stress on Machining Precision of Elastic Deformation Molding Method
(The American Society of Mechanical Engineers (ASME), 2013)Elastic deformation molding method is a newly developed aspheric machining technology which can convert complex aspherical surface machining to simple flat surface machining. The residual stress induced in lapping process ... -
Experimental Study of Failure Modes and Scaling Effects in Micro Incremental Forming
(The American Society of Mechanical Engineers (ASME), 2013)Incremental forming (IF) is a relatively new technique that uses a simple hemispherical ended tool moving along a predefined threedimensional toolpath to deform a sheet of metal into the desired shape. The greater process ... -
Crystallographic Effects on Microscale Machining of Polycrystalline Brittle Materials
(The American Society of Mechanical Engineers (ASME), 2013)This paper studies the effects of crystallography on the microscale machining characteristics of polycrystalline brittle materials on a quantitative basis. It is believed that during micromachining of brittle materials, ... -
Manufacturing of 316L Stainless Steel Die Mold by Hot Embossing Process for Microfluidic Applications
(The American Society of Mechanical Engineers (ASME), 2013)Hot embossing process has emerged as a viable method for producing small, complex, precision parts in low volumes. It provides several advantages such as lowcost for molds, high replication accuracy for microfeatures and ... -
Optimization of Planetary Movement Parameters for Microhole Drilling by Micro Electrical Discharge Machining
(The American Society of Mechanical Engineers (ASME), 2013)Microholes are widely used in industrial products, such as engine nozzles and filters for biomedical industry. Electrical discharge machining (EDM) is one of processes to drill microholes in alloy with high aspect ratio. ... -
Characterization of “Bulk Lithography†Process for Fabrication of Three Dimensional Microstructures
(The American Society of Mechanical Engineers (ASME), 2013)Various ways of fabricating a threedimensional (3D) component in a singlelayer exposure using spatial variation of exposure dose have been presented in the literature. While some of them are based on dynamic mask process, ... -
Fabrication of Three Dimensional Functional Microstructures on Curved Substrates Using Three Dimensional Microlens Projection
(The American Society of Mechanical Engineers (ASME), 2013)In this research, an innovative 3D micromachining process for functional microstructures on curved surfaces is introduced. An injection molded 3D polymethylmethacrylate (PMMA) microlens array was used as projection optics. ... -
An Experimental Investigation on the Fabrication of Micro/Meso Surface Features by Metallic Roll to Plate Imprinting Process
(The American Society of Mechanical Engineers (ASME), 2013)Metallic components with largearea functional surface micro/mesostructures have been increasingly utilized in various industrial fields, such as friction/wear reduction, viscous drag reduction, and energy efficiency ... -
Process Parameter Effects on Dimensional Accuracy of Micro Injection Moulded Part
(The American Society of Mechanical Engineers (ASME), 2013)Microinjection moulding is becoming increasingly important among the available processes for production of microelectromechanical systems (MEMS) and microsystem technologies (MSTs), and higher number of polymer products ... -
Excimer Laser Micromachining Using Binary Mask Projection for Large Area Patterning With Single Micrometer Features
(The American Society of Mechanical Engineers (ASME), 2013)Excimer laser micromachining using binary mask projection has been investigated for rapid patterning of single micrometer features over large areas of various substrates. Simple limit for depth of focus that determines the ... -
Quantification of Thermal Resistance of Transient Liquid Phase Bonded Cu/Al/Cu Interfaces for Assembly of Cu Based Microchannel Heat Exchangers
(The American Society of Mechanical Engineers (ASME), 2013)Transient liquid phase (TLP) bonding of Cu structures with a thin elemental Al intermediate bonding layer is being used to assemble Cubased, enclosed, microchannel heat exchangers (MHEs). The heterogeneous Cu/Al/Cu TLP ...