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Topic Area: Nanomechanics
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Displaying records 1 to 10 of 18 records.
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1. A phononic bandgap shield for high-Q membrane microresonators
Topic: Nanomechanics
Published: 1/15/2014
Authors: Raymond Wiley Simmonds, P.-L. Yu, Katarina Cicak, N. S. Kampel, Y. Tsaturyan, T. P. Purdy, C. A. Regal
Abstract: A phononic crystal can control the acoustic coupling between a resonator and its support structure. We micromachine a phononic bandgap shield for high Q silicon nitride membranes and study the driven displacement spectra of the membranes and thei ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915076

2. Analysis of high-Q, gallium nitride nanowire resonators in response to deposited thin films
Topic: Nanomechanics
Published: 1/1/2011
Authors: J. R. Montague, M. Dalberth, J. M. Gray, D. Seghete, Kristine A Bertness, S M George, Victor M. Bright, C. T. Rogers, Norman A Sanford
Abstract: Gallium nitride nanowires (GaN-NWs) are systems of interest for mechanical resonance-based sensors due to their small mass and, in the case of c-axis NWs, high mechanical quality (Q) factors of 10,000‹100,000. We report on singly-clamped NW mechanic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903757

3. CAVITY OPTOMECHANICAL SENSORS
Topic: Nanomechanics
Published: 6/5/2011
Authors: Houxun H. Miao, Kartik A Srinivasan, Matthew T. Rakher, Marcelo Ishihara Davanco, Vladimir A Aksyuk
Abstract: We report a novel type of fully integrated optomechanical sensor and demonstrate high sensitivity mechanical displacement measurements on chip. We sense the motion of micro and nano-mechanical devices by near field coupling them to high quality facto ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908272

4. Cleaning of diamond nanoindentation probes with oxygen plasma and carbon dioxide snow
Topic: Nanomechanics
Published: 12/7/2009
Author: Dylan Morris
Abstract: Diamond nanoindentation probes may perform many thousands of indentations over years of service life. There is general agreement that the probes need frequent cleaning, but techniques for doing so are mostly anecdotes shared between experimentalists. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903064

5. Dislocation nucleation and multiplication in small volumes: the onset of plasticity during indentation testing
Topic: Nanomechanics
Published: 3/9/2009
Authors: Dylan Morris, David Bahr, Stefhanni Jennerjohn
Abstract: While classical studies of dislocation behavior have focused on the motion and multiplication of dislocations, recent advances in experimental methods allow studies that probe relatively dislocation-free volumes of materials. When the dislocation co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901136

6. Dynamic contact AFM methods for nanomechanical properties
Topic: Nanomechanics
Published: 12/1/2013
Authors: Donna C. Hurley, Jason Philip Killgore
Abstract: This chapter focuses on two atomic force microscopy (AFM) methods for nanomechanical characterization: force modulation microscopy (FMM) and contact resonance (CR) techniques. FMM and CR methods share several common features that distinguish them fro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911068

7. High-Frequency Nanofluidics: A Universal Formulation of the Fluid Dynamics of MEMS and NEMS
Topic: Nanomechanics
Published: 9/23/2010
Authors: Kamil L. Ekinci, V. Yakhot, Sukumar Rajauria, C. Colosqui, D. M. Karabacak
Abstract: A solid body undergoing oscillatory motion in a fluid generates an oscillating flow. Oscillating flows in Newtonian fluids were first treated by G.G. Stokes in 1851. Since then, this problem has attracted much attention, mostly due to its technologic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904957

8. Large Stroke Electrostatic Comb Drive Actuators Enabled by a Novel Flexure Mechanism
Topic: Nanomechanics
Published: 4/30/2013
Authors: Mohammad Olfatnia, Siddharth Sood, Jason John Gorman, Shorya Awtar
Abstract: This paper reports in-plane electrostatic combdrive actuators with stroke as large as 245 μm that is achieved by employing a novel Clamped Paired Double Parallelogram (C-DPDP) flexure mechanism. The C-DP-DP flexure mechanism design offers high b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912124

9. Large Stroke Electrostatic Comb-Drive Actuators Based on a Novel Flexure Mechanism
Topic: Nanomechanics
Published: 6/20/2012
Authors: Mohammad Olfatnia, Siddharth Sood, Jason John Gorman, Shorya Awtar
Abstract: This paper reports in-plane electrostatic comb-drive actuators with stroke as large as 245 µm, achieved by employing a novel Clamped Paired Double Parallelogram (C-DP-DP) flexure mechanism. For a given flexure beam length (L1), comb gap (G), and actu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911098

10. Measurement of residual stress field anisotropy at indentations in silicon
Topic: Nanomechanics
Published: 6/23/2010
Authors: Yvonne Beatrice Gerbig, Stephan J Stranick, Robert Francis Cook
Abstract: The residual stress field around spherical indentations on single crystal silicon (Si) of different crystallographic orientation is mapped by confocal Raman microscopy. All orientations exhibit an anisotropic stress pattern with an orientation spec ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905445



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