Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: (a) Sliding input acceleration and the horizontal force balance and (b) normal input acceleration and vertical force balance

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: Equivalent rough surface in contact with flat surface. Dotted line shows the original asperity profile where solid line shows the profile after compression. The compressed asperity has profile Z = f(r) [10].

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: (a) Forces (N) versus separation distance (nm) (forces: applied load = attraction load minus asperity reaction load) and (b) friction force (N) versus separation distance (nm)

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: Sliding threshold case: applied load (N) versus acceleration (m/s2). (a) Linear and (b) semilogarithmic (zoom in region 0–5 × 104). Even with a zero applied load the friction force is not zero. A finite value of acceleration is required to move the micropart.

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: Threshold acceleration for sliding and detachment as function of surface roughness for a (LWH) 100 × 100 × 10 μm3 steel micropart on a steel surface

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: (a) Variation of sliding threshold with the change of surface roughness for a series of surface hardness values and (b) variation of contact area with the change of surface roughness for H = 2 GPa

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: (a) Variation of applied load as function of separation distance with the change of material hardness and (b) elastic contact area as function of material hardness

Date of download: 12/29/2017 Copyright © ASME. All rights reserved. From: On the Acceleration Limits for Sliding and Detachment Between Contacting Rough Surfaces for Micropart Manipulation in a Dry Environment J. Micro Nano-Manuf. 2013;1(1):011005-011005-8. doi:10.1115/1.4023531 Figure Legend: Schematic of micromanipulation approach; hf is the length of stroke and WL is the wavelength (equal to the actuator spacing) [10]