Establishing proper scanning conditions in atomic force microscopy on polyimide and polyurethane samples and their effect on 3D surface texture parameters

Scanning ◽  
2015 ◽  
Vol 37 (5) ◽  
pp. 335-349 ◽  
Author(s):  
Iuliana Stoica ◽  
Elena Gabriela Hitruc ◽  
Daniel Timpu ◽  
Virgil Barboiu ◽  
Dan Sorin Vasilescu
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Texture ◽  
Force Microscopy ◽  
Atomic Force ◽  
3D Surface ◽  
Texture Parameters ◽  
3D Surface Texture

scholarly journals A method for the taphonomic assessment of bone tools using 3D surface texture analysis of bone microtopography

2020 ◽  
Vol 12 (10) ◽  
Author(s):  
Naomi L. Martisius ◽  
Shannon P. McPherron ◽  
Ellen Schulz-Kornas ◽  
Marie Soressi ◽  
Teresa E. Steele
Keyword(s):  
Texture Analysis ◽  
Surface Texture ◽  
Bone Tools ◽  
3D Surface ◽  
Texture Parameters ◽  
One Step ◽  
Ancient Bone ◽  
Anthropogenic Modifications ◽  
3D Surface Texture ◽  
Surface Texture Analysis

Abstract Increasingly researchers have employed confocal microscopy and 3D surface texture analysis to assess bone surface modifications in an effort to understand ancient behavior. However, quantitative comparisons between the surfaces of purported archaeological bone tools and experimentally manufactured and used bones are complicated by taphonomic processes affecting ancient bone. Nonetheless, it may be reasonable to assume that bones within the same deposits are altered similarly and thus these alterations are quantifiable. Here we show how unworked bones can be used to quantify the taphonomic effect on bone surfaces and how this effect can then be controlled for and incorporated into an analysis for evaluating the modified surfaces of purported bone tools. To assess the baseline taphonomy of Middle Paleolithic archaeological deposits associated with typologically identified bone artifacts, specifically lissoirs, we directly compare the surface textures of ancient and modern unworked ribs. We then compare the ancient unworked ribs and lissoirs to assess their differences and predict the ancient artifacts’ original surface state using a multilevel multivariate Bayesian model. Our findings demonstrate that three of five tested surface texture parameters (Sa, Spc, and IsT) are useful for distinguishing surface type. Our model predictions show that lissoirs tend to be less rough, have more rounded surface peaks, and exhibit more directionally oriented surfaces. These characteristics are likely due to anthropogenic modifications and would have been more pronounced at deposition. Quantifying taphonomic alterations moves us one step closer to accurately assessing how bone artifacts were made and used in the ancient past.

A Multifeature Approach to Tool Wear Estimation Using 3D Workpiece Surface Texture Parameters

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
Yi Liao ◽  
David A. Stephenson ◽  
Jun Ni
Keyword(s):  
Tool Wear ◽  
Surface Texture ◽  
Polycrystalline Diamond ◽  
Texture Features ◽  
Surface Measurement ◽  
Warning Sign ◽  
Workpiece Surface ◽  
3D Surface ◽  
Texture Parameters ◽  
3D Surface Texture

This work presents a new way to determine the condition of a cutting tool based on 3D texture parameters of workpiece surface. Recently, a laser holographic interferometer has been developed to rapidly measure a large workpiece surface and generate a 3D surface height map with micron level accuracy. This technique enables online surface measurement for machined workpieces. By measuring and analyzing workpiece surface texture, the interaction between the tool’s cutting edges and the workpiece surface can be extracted as a spatial signature. It can then be used as a warning sign for tool change because the workpiece produced by a heavily worn tool exhibits more irregularities in its surface texture than that produced by a normal tool. Multiple texture parameters such as image intensity histogram distribution parameter, 3D peak-to-valley height, and 3D surface waviness parameter are employed to indicate the onset of severe tool wear. In this work, aluminum (Al308) and compacted graphite iron parts were machined by a polycrystalline diamond insert and a multiphase coated tungsten carbide insert, respectively. After that, multiple 3D surface texture features of workpieces samples under different phases of tool wear were analyzed in order to assess tool wear conditions. The experimental results verify that these surface texture features can be used as good indicators for online tool wear monitoring.

scholarly journals The assessment of the surface texture of friction node components after tribological tests

Mechanik ◽  
2017 ◽  
Vol 90 (12) ◽  
pp. 1144-1147
Author(s):  
Stanisław Adamczak ◽  
Jacek Świderski ◽  
Tomasz Dobrowolski
Keyword(s):  
Atomic Force Microscopy ◽  
Surface Structure ◽  
Surface Texture ◽  
Carbon Layer ◽  
Bearing Steel ◽  
Diamond Like Carbon ◽  
Force Microscopy ◽  
Tribological Tests ◽  
Atomic Force

At present, a number of methods can be applied to measure the surface structure of elements. In this paper, following methods were selected to measure the surface texture of friction node components (a ball-disc couple) after tribological tests: contact profilometry, coherence correlation interferometry and atomic force microscopy. The specimens under investigation were: a disc coated by DLC (diamond-like carbon) layer and a ball made of bearing steel.

Mapping the 3D-surface strain field of patterned tensile stainless steels using atomic force microscopy

2005 ◽  
Vol 103 (3) ◽  
pp. 183-189 ◽  
Author(s):  
Vincent Vignal ◽  
Eric Finot ◽  
Roland Oltra ◽  
Yvon Lacroute ◽  
Eric Bourillot ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Stainless Steels ◽  
Strain Field ◽  
Surface Strain ◽  
Force Microscopy ◽  
Atomic Force ◽  
3D Surface

3D Surface Roughness Parameters of Nanostructured Coatings with Application in the Aerospace Industry

2015 ◽  
Vol 772 ◽  
pp. 3-7 ◽  
Author(s):  
Guna Civcisa ◽  
Tõnu Leemet
Keyword(s):  
Surface Texture ◽  
Turbine Blades ◽  
Aerospace Industry ◽  
Base Material ◽  
Repeated Measurements ◽  
Gas Turbine Blades ◽  
3D Surface ◽  
Texture Parameters ◽  
3D Surface Roughness ◽  
3D Surface Texture

This paper presents a study of 3D surface texture measurements and analysis of several surface texture parameters. A stylus measuring instrument was used to measure 3D surface topographies. In experimental part of this study, two coated gas turbine blades used in aerospace industry were chosen to examine surface of the coatings in nano-scale. Surface texture parameters of Ti-Al coating and Ti-Al-N coating were measured and compared to each other. The aim of the research is to analyze the surface of these coatings in an areal (3D) manner. The results indicate slight differences between these two surface textures despite the fact that both are Titanium-based coatings, and the surface of base material for both samples was prepared in the same way before deposition. Further study with repeated measurements of surface texture for deposed coatings has to be made after erosion tests.

A Study of the Surface Texture of Polycrystalline Phosphor Films Using Atomic Force Microscopy

1994 ◽  
Vol 343 ◽  
Author(s):  
R. Revay ◽  
J. Schneir ◽  
D. Brower ◽  
J. Villarrubia ◽  
J. Fu ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Grain Size ◽  
Surface Texture ◽  
Film Surface ◽  
Optical Data Storage ◽  
Optical Data ◽  
Film Material ◽  
Phosphor Material ◽  
Force Microscopy ◽  
Atomic Force

ABSTRACTStimulable phosphor thin films are being investigated for use as optical data storage media. We have successfully applied atomic force microscopy (AFM) to the measurement of the surface texture of these films. Determination of the surface texture of the films is important for evaluating the effect of surface quality on optical scatter. In other thin film material systems it has been found that the surface “bumps” revealed by AFM correspond to grains in the film. This is not the case for the stimulable phosphor films used in our study. We have determined the grain size of our phosphor films by transmission electron microscopy (TEM) and x-ray diffraction (XRD). The grain size from TEM and XRD does not correlate with the size of the AFM surface “bumps.” For example, in two of the five films studied, the XRD derived grain size varies by a factor of two but the size of the surface “bumps” remains the same. We conclude that the texture of the film surface is not directly determined by the grain size of the phosphor material.

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