Journal of Micro and Nano: Recent submissions
Now showing items 281-300 of 361
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Optothermal Modeling of Plasmonic Nanofocusing Structures With Nonlocal Optical Response and Ballistic Heat Transport
(The American Society of Mechanical Engineers (ASME), 2015)Nanoscale optical energy focusing using plasmonic structures is crucial for many applications, such as imaging and lithography. Thermal management for these nanostructures is of great importance to maintain their reliabilities ... -
A Novel Multimaterial Additive Manufacturing Technique for Fabricating Laminated Polymer Nanocomposite Structures
(The American Society of Mechanical Engineers (ASME), 2015)The objective of this research is to develop a novel, multimaterial additive manufacturing technique for fabricating laminated polymer nanocomposite structures that have characteristic lengthscales in the tens of millimeters ... -
Effects of Different Cavity Geometries on Machining Performance in Micro Electrical Discharge Milling
(The American Society of Mechanical Engineers (ASME), 2015)Low energyshort pulsed electric discharge coupled with precise movement of circular electrode in microelectrical dischargemilling (خ¼EDMmilling) enables generation of threedimensional (3D) cavities in the order of few tens ... -
Analysis of Micro/Mesoscale Sheet Forming Process by Strain Gradient Plasticity and Its Characterization of Tool Feature Size Effects
(The American Society of Mechanical Engineers (ASME), 2015)Conventional material models cannot describe material behaviors precisely in micro/mesoscale due to the size/scale effects. In micro/mesoscale forming process, the reaction force, localized stress concentration, and ... -
A Low Cost and High Resolution Micromachine Tool With Toggle Based Mechanism
(The American Society of Mechanical Engineers (ASME), 2015)The products of 3C, bioscience, medical industry, and aerospace industry are becoming smaller and smaller. The components of the products are made of various materials with complex 3D shapes requiring high accuracy in their ... -
Scalable Fabrication of Low Elastic Modulus Polymeric Nanocarriers With Controlled Shapes for Diagnostics and Drug Delivery
(The American Society of Mechanical Engineers (ASME), 2015)A new process, decoupled functional imprint lithography (DFIL), is presented for fabricating low elastic modulus polymeric nanocarriers possessing Young's modulus of bulk material as low as sub1 MPa. This method is ... -
Surface Micropatterning of Pure Titanium for Biomedical Applications Via High Energy Pulse Laser Peening
(The American Society of Mechanical Engineers (ASME), 2015)Pure titanium is an ideal material for biomedical implant applications for its superior biocompatibility, but it lacks of the mechanical strength required in these applications compared with titanium alloys. This research ... -
Bubble Formation Modeling During Laser Direct Writing of Glycerol Solutions
(The American Society of Mechanical Engineers (ASME), 2015)Laser direct writing, a noncontact modified laserinduced forward transfer (LIFT) technique, has emerged as a promising technology for various applications from microelectronics printing to biofabrication. For it to be a ... -
Electrospray Ionization of Polymers: Evaporation, Drop Fission, and Deposited Particle Morphology1
(The American Society of Mechanical Engineers (ASME), 2015)The fundamental challenge of nanomanufacturing is to create, control, and place immense quantities of nanoscale objects controllably over large surface areas. Electrospray ionization (ESI) has the potential to address this ... -
Molecular Dynamics Simulation Study of Tool Wear in Vibration Assisted Nano Impact Machining by Loose Abrasives
(The American Society of Mechanical Engineers (ASME), 2015)Vibration assisted nanoimpactmachining by loose abrasives (VANILA) is a novel target specific nanoabrasive machining process wherein, nanoabrasives, injected in slurry between the workpiece and the vibrating atomic force ... -
Slump Molding of Microchannel Arrays in Soda Lime Glass for Bioanalytical Device Development
(The American Society of Mechanical Engineers (ASME), 2014)A slump molding process was developed to place microchannel geometries in a sodalime glass substrate for a labonchip bioanalytical device. The process was developed to overcome the biological and chemical reactivity ... -
Fabrication of Polymer Derived Silicon Oxycarbide Microparts and Their Mechanical Characteristics
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, fabrication and mechanical characterization of silicon oxycarbide (SiOC) microparts made from polycarbosilane (PCS) precursor is described. The developed fabrication technique is a combination of ultraviolet ... -
Tool Wear in Micro Endmilling: Material Microstructure Effects, Modeling, and Experimental Validation
(The American Society of Mechanical Engineers (ASME), 2014)This paper reports an investigation of material microstructure effects on tool wear in microscale machining of multiphase materials. A new generic approach is proposed to estimate the tool wear that utilizes empirical data ... -
Evaluation of Cutting Forces During Single Pass Microtrenching of Poly (Methyl Methacrylate)
(The American Society of Mechanical Engineers (ASME), 2014)Research was conducted to evaluate a microtrenching process to create microchannels on the surface of poly (methyl methacrylate) (PMMA) for applications in tissue engineering. Experiments with a trenching tool included an ... -
Surface Finish of Ball End Milled Microchannels
(The American Society of Mechanical Engineers (ASME), 2014)This study develops a hybrid micromanufacturing technique to fabricate extremely smooth surface finish, high aspect ratio, and complex microchannel patterns. Milling with coat and uncoated ballend micromills in minimum ... -
Synthesis and Characterization of ZrO2 Coatings on Micro End Mills With Sol–Gel Processing
(The American Society of Mechanical Engineers (ASME), 2014)The objective of this paper is to develop a coating method for placing ultrathin zirconia films, fabricated using sol–gel methods, onto micro end mills. Sol–gel synthesis is investigated because of its potential as a ... -
New Micro Tube Hydroforming System Based on Floating Die Assembly Concept
(The American Society of Mechanical Engineers (ASME), 2014)The advancement of micro tube hydroforming (THF) technology has been hindered by, among others, the lack of robust microdie systems that could facilitate hydroforming of complex parts that require both expansion and feeding. ... -
Comparison of Microscale Rapid Prototyping Techniques
(The American Society of Mechanical Engineers (ASME), 2014)Recent advances in manufacturing techniques have opened up new interest in rapid prototyping at the microscale. Traditionally microscale devices are fabricated using photolithography, however this process can be time ... -
Fabrication and Characterization of Photonic Crystals in Photopolymer SZ2080 by Two Photon Polymerization Using a Femtosecond Laser
(The American Society of Mechanical Engineers (ASME), 2014)Twophoton polymerization (2PP) is a powerful technique in fabricating threedimensional subdiffractionlimited structures. In this paper, 2PP was applied to generate woodpile structures, one kind of photonic crystal, using ... -
Tool/Chip Interfacial Friction Analysis in Atomistic Machining of Polycrystalline Coppers
(The American Society of Mechanical Engineers (ASME), 2014)Threedimensional (3D) molecular dynamics (MD) simulation is performed to study the tool/chip interface friction phenomenon in machining of polycrystalline copper at atomistic scale. Three polycrystalline copper structures ...