Study on the stick-slip phenomenon on a cleaved surface of the Muscovite mica using an atomic force/lateral force microscope

1994 ◽  
Vol 12 (3) ◽  
pp. 1635 ◽  
Author(s):  
S. Fujisawa
Keyword(s):  
Lateral Force ◽  
Stick Slip ◽  
Atomic Force ◽  
Muscovite Mica ◽  
Lateral Force Microscope ◽  
Slip Phenomenon

Smart Piezoelectric PZT Microcantilevers with Inherent Sensing and Actuating Abilities for AFM and LFM

1996 ◽  
Vol 459 ◽  
Author(s):  
C. Lee ◽  
T. Itoh ◽  
J. Chu ◽  
T. Ohashi ◽  
R. Maeda ◽  
...  
Keyword(s):  
Sample Surface ◽  
Lateral Force ◽  
Smart Structure ◽  
Thin Layers ◽  
Force Sensing ◽  
Free Standing ◽  
Atomic Force ◽  
Lateral Force Microscope ◽  
Dynamic Scanning ◽  
Piezoelectric Charge

ABSTRACTNovel designs of the force sensing components for an atomic force microscope (AFM) and lateral force microscope (LFM) have been proposed in this study. By using PZT thin layers, a smart structure that can perform force sensing and feedback actuation at the same time is applied to the AFM. Clear images can be derived by an AFM equipped with this smart structure. A structure of two parallel PZT bars integrated on a SiO2 free standing cantilever has shown potential for operation in an LFM, because a difference in the piezoelectric charge outputs from these two beams will be induced by frictional force when the cantilever end quasi-staticly contacts with the sample surface in dynamic scanning across the surface.

Ultrasonic Force Microscopic Characterization of Nanosized Copper Particles

1999 ◽  
Vol 581 ◽  
Author(s):  
E. J. Schumaker ◽  
L. Shen ◽  
M. J. Ruddell ◽  
S. Sathish ◽  
P. T. Murray
Keyword(s):  
Quartz Substrate ◽  
Lateral Force ◽  
Force Microscopy ◽  
Atomic Force ◽  
Probe Microscope ◽  
Property Measurement ◽  
Cluster Beam Deposition ◽  
Lateral Force Microscope ◽  
Beam Deposition

ABSTRACTAn Ultrasonic Force Microscope capable of imaging elastic modulus variations with nanometer resolution has been developed by modifying a Scanning Probe Microscope. Images of ultrasonic properties have been simultaneously obtained with the topography images. The technique has been utilized to characterize nanoscale copper droplets and grains deposited on a quartz substrate by ionized cluster beam deposition. Images of the same region obtained with atomic force microscope, lateral force microscope, and ultrasonic force microscope are compared. The origin of image contrast in ultrasonic force microscopy and its utilization for quantitative elastic property measurement of nanometer particles are discussed.

Nanolubrication: Patterned Lubricating Films Using Ultraviolet (UV) Irradiation on Hard Disks

2007 ◽  
Vol 7 (1) ◽  
pp. 286-292 ◽  
Author(s):  
J. Zhang ◽  
S. M. Hsu ◽  
Y. F. Liew
Keyword(s):  
Rupture Strength ◽  
Lateral Force ◽  
Hard Disks ◽  
Long Wavelength ◽  
Atomic Force ◽  
Shear Rupture ◽  
Magnetic Hard Disk ◽  
Molecular Layers ◽  
Lateral Force Microscope ◽  
Friction And Wear Characteristics

Nanolubrication is emerging to be the key technical barrier in many devices. One of the key attributes for successful device lubrication is self-sustainability using only several molecular layers. For single molecular species lubrication, one desires bonding strength and molecular mobility to repair the contact by diffusing back to the contact. One way to achieve this is the use of mask to shield the surface with a patterned surface texture, put a monolayer on the surface and induce bonding. Then re-deposit mobile molecules on the surface to bring the thickness back to the desired thickness. This paper describes the use of long wavelength UVirradiation (320–390 nm) to induce bonding of a perfluoropolyether (PFPE) on CNx disks for magnetic hard disk application. This allows the use of irradiation to control the degree of bonding on CNx coatings. The effect of induced bonding based on this wavelength was studied by comparing 100% mobile PFPE, 100% bonded PFPE, and a mixture of mobile and bonded PFPE in a series of laboratory tests. Using a lateral force microscope, a diamond-tipped atomic force microscope, and a ball-on-inclined plane apparatus, the friction and wear characteristics of these three cases were obtained. Results suggested that the mixed PFPE has the highest shear rupture strength.

scholarly journals Studying friction while playing the violin: exploring the stick–slip phenomenon

2017 ◽  
Vol 8 ◽  
pp. 159-166 ◽  
Author(s):  
Santiago Casado
Keyword(s):  
Atomic Force Microscopy ◽  
Shear Stress ◽  
Slip Effect ◽  
Stick Slip ◽  
Force Microscopy ◽  
Atomic Force ◽  
Stringed Instrument ◽  
Microscopy Characterization ◽  
Atomic Force Microscopy Characterization ◽  
Slip Phenomenon

Controlling the stick–slip friction phenomenon is of major importance for many familiar situations. This effect originates from the periodic rupture of junctions created between two rubbing surfaces due to the increasing shear stress at the interface. It is ultimately responsible for the behavior of many braking systems, earthquakes, and unpleasant squeaky sounds caused by the scratching of two surfaces. In the case of a musical bow-stringed instrument, stick–slip is controlled in order to provide well-tuned notes at different intensities. A trained ear is able to distinguish slight sound variations caused by small friction differences. Hence, a violin can be regarded as a perfect benchmark to explore the stick–slip effect at the mesoscale. Two violin bow hairs were studied, a natural horse tail used in a professional philharmonic orchestra, and a synthetic one used with a violin for beginners. Atomic force microscopy characterization revealed clear differences when comparing the surfaces of both bow hairs, suggesting that a structure having peaks and a roughness similar to that of the string to which both bow hairs rubbed permits a better control of the stick–slip phenomenon.

An integrated scanning tunneling, atomic force and lateral force microscope

1994 ◽  
Vol 65 (1) ◽  
pp. 85-88 ◽  
Author(s):  
L. A. Wenzler ◽  
T. Han ◽  
R. S. Bryner ◽  
T. P. Beebe
Keyword(s):  
Lateral Force ◽  
Scanning Tunneling ◽  
Atomic Force ◽  
Lateral Force Microscope

Lateral force curve for atomic force/lateral force microscope calibration

1995 ◽  
Vol 66 (4) ◽  
pp. 526-528 ◽  
Author(s):  
Satoru Fujisawa ◽  
Eigo Kishi ◽  
Yasuhiro Sugawara ◽  
Seizo Morita
Keyword(s):  
Lateral Force ◽  
Force Curve ◽  
Atomic Force ◽  
Lateral Force Microscope

Preliminary Study on Stick-Slip in Drillstring With Analytical Model Expressed With Neutral Delay Differential Equation

2014 ◽  
Author(s):  
Tomoya Inoue ◽  
Tokihiro Katsui ◽  
Chang-Kyu Rheem ◽  
Zengo Yoshida ◽  
Miki Y. Matsuo
Keyword(s):  
Differential Equation ◽  
Analytical Model ◽  
Delay Differential Equation ◽  
Drill Bit ◽  
Neutral Delay ◽  
Stick Slip ◽  
Scientific Drilling ◽  
Neutral Delay Differential Equation ◽  
Delay Differential ◽  
Slip Phenomenon

Stick-slip is a major problem in offshore drilling because it may cause damage to the drill bit as well as crushing or grinding the sediment layer, which is crucial problem in scientific drilling because the purpose of the scientific drilling is to recover core samples from the layers. To mitigate stick-slip, first of all it is necessary to establish a model of the torsional motion of the drill bit and express the stick-slip phenomenon. Toward this end, the present study proposes a model of torsional waves propagating in a drillstring. An analytical model is developed and used to derive a neutral delay differential equation (NDDE), a special type of equation that requires time history, and an analytical model of stick-slip is derived for friction models between the drill bit and the layer as well as the rotation speed applied to the uppermost part of the drill string. In this study, the stick-slip model is numerically analyzed for several conditions and a time series of the bit motions is obtained. Based on the analytical results, the appearance of stick-slip and its severity are discussed. A small-scale model experiment was conducted in a water tank to observe the stick-slip phenomenon, and the result is discussed with numerical analysis. In addition, utilizing surface drilling data acquired from the actual drilling operations of the scientific drillship Chikyu, occurrence of stick-slip phenomenon is discussed.

scholarly journals Simultaneous acquisition of current and lateral force signals during AFM for characterising the piezoelectric and triboelectric effects of ZnO nanorods

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yijun Yang ◽  
Kwanlae Kim
Keyword(s):  
Linear Regression Analysis ◽  
Zno Nanorods ◽  
Lateral Force ◽  
Mechanical Force ◽  
Force Microscopy ◽  
Atomic Force ◽  
Simultaneous Acquisition ◽  
Afm Probe ◽  
Triboelectric Effect ◽  
Conversion Efficiencies

AbstractAtomic force microscopy (AFM) is central to investigating the piezoelectric potentials of one-dimensional nanomaterials. The AFM probe is used to deflect individual piezoelectric nanorods and to measure the resultant current. However, the torsion data of AFM probes have not been exploited to elucidate the relationship between the applied mechanical force and resultant current. In this study, the effect of the size of ZnO nanorods on the efficiency of conversion of the applied mechanical force into current was investigated by simultaneously acquiring the conductive AFM and lateral force microscopy signals. The conversion efficiency was calculated based on linear regression analysis of the scatter plot of the data. This method is suitable for determining the conversion efficiencies of all types of freestanding piezoelectric nanomaterials grown under different conditions. A pixel-wise comparison of the current and lateral force images elucidated the mechanism of current generation from dense arrays of ZnO nanorods. The current signals generated from the ZnO nanorods by the AFM probe originated from the piezoelectric and triboelectric effects. The current signals contributed by the triboelectric effect were alleviated by using an AFM probe with a smaller spring constant and reducing the normal force.

Sign in / Sign up

Export Citation Format

Share Document