Introduction—Measurement Techniques and Applications

Bhushan, Bharat

doi:10.1007/978-3-319-51433-8_1

Cited by 2 publications

(5 citation statements)

References 75 publications

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“…Non-Gaussian surfaces with a kurtosis number below 3 (platykurtic) suggest relatively flat peaks and valleys, whereas a kurtosis value above 3 (leptokurtic) denotes sharp peaks and valleys (Figure S2). The coating samples containing EC and PVP as the polymeric binders offer an almost symmetrical degree of probability distribution within the surface profile through 3D-OSP investigations (Table S2). The optical images captured for the coatings containing EC6, PAA6, and PVP6 as the polymeric binders are presented in Figure .…”

Section: Resultsmentioning

confidence: 99%

Electrophoretic Deposition of 58S Bioactive Glass- Polymer Composite Coatings on 316L Stainless Steel: An Optimization for Corrosion, Bioactivity, and Cytocompatibility

Hadem,

Mitra,

Ojha

et al. 2024

ACS Appl. Bio Mater.

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This study presents a facile fabrication of 58S bioactive glass (BG)-polymer composite coatings on a 316L stainless steel (SS) substrate using the electrophoretic deposition technique. The suspension characteristics and deposition kinetics of BG, along with three different polymers, namely ethylcellulose (EC), poly(acrylic acid) (PAA), and polyvinylpyrrolidone (PVP), have been utilized to fabricate the coatings. Among all coatings, 58S BG and EC polymers are selected as the final composite coating (EC6) owing to their homogeneity and good adhesion. EC6 coating exhibits a thickness of ∼18 μm and an average roughness of ∼2.5 μm. Herein, EC6 demonstrates better hydroxyapatite formation compared to PAA and PVP coatings in simulated body fluid-based mineralization studies for a period of 28 days. Corrosion studies of EC6 in phosphate-buffered saline further confirm the higher corrosion resistance properties after 14 days. In vitro cytocompatibility studies using human placental mesenchymal stem cells demonstrate an increase in cellular viability, attachment, and higher proliferation compared to the bare SS substrate. EC6 coatings promote osteogenic differentiation, which is confirmed via the upregulation of the OPN and OCN genes. Moreover, the EC6 sample exhibits improved antibacterial properties against Escherichia coli and Staphylococcus aureus compared to the uncoated ones. The findings of this work emphasize the potential of electrophoretically fabricated BG−EC composite coatings on SS substrates for orthopedic applications.

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Section: Resultsmentioning

confidence: 99%

Electrophoretic Deposition of 58S Bioactive Glass- Polymer Composite Coatings on 316L Stainless Steel: An Optimization for Corrosion, Bioactivity, and Cytocompatibility

Hadem,

Mitra,

Ojha

et al. 2024

ACS Appl. Bio Mater.

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“…SPM can be used to measure the wear depth and wear volume of materials with nanoscale precision. 41 By conducting scans of the surface both before and after wear, it becomes possible to quantify the alterations in surface topography, allowing for the assessment of wear rates and wear mechanisms at the nanoscale. SPM techniques can map frictional and adhesive forces between the probe and the surface of sample.…”

Section: Measurement Methodsmentioning

confidence: 99%

“…SPM enables the evaluation of nanoscale wear mechanisms, such as abrasive wear, adhesive wear, and fatigue wear. 41 By imaging wear tracks and the resulting wear debris, it is possible to identify the dominant wear mechanisms and understand the interactions between contacting surfaces during the wear process. SPM-based techniques can map various tribological properties, including hardness, elastic modulus, and adhesion, across the surface of a material.…”

Section: Measurement Methodsmentioning

confidence: 99%

“…SPM can be used to investigate the effectiveness of lubricants and coatings in reducing wear at the nanoscale. 41,42 By studying the interaction of the lubricant or coating layer and the sample surface, SPM provides valuable information on the effectiveness of these protective layers in minimizing friction and wear. Therefore, SPM-based techniques provide valuable tools for investigating nanowear and nano-tribology concepts.…”

Section: Measurement Methodsmentioning

confidence: 99%

“…It is of paramount significance to acknowledge that the specific effects of speed in the presence of lubricant and wear at the nanoscale can change based on the materials, lubricant properties, contact conditions, and other factors. 10,41…”

Section: Investigation Of Parameters Affecting Nano-wearmentioning

confidence: 99%

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Nano-scale wear: A critical review on its measuring methods and parameters affecting nano-tribology

Sadeghi,

Cavaliere,

Shabani

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper presents a critical review on the measuring methods and parameters affecting nano-tribology in the context of nano-scale wear. Nano-scale wear phenomena play a crucial role in various industries, including micro/nano-systems, electronics, and biotechnology. The review begins by discussing the significance of nano-scale wear and its impact on device performance, lifespan, durability, energy efficiency, cost savings, and environmental sustainability. It then delves into the measuring methods employed to assess nano-scale wear, including scanning probe microscopy (SPM) techniques such as atomic force microscopy (AFM) and friction force microscopy (FFM). The capabilities of AFM and FFM in studying the roughness of surface, adhesion, friction, scratch, abrasion, and nano-scale material transfer are highlighted. Additionally, the review explores the parameters affecting nano-wear, such as lubrication strategies, stress levels, sliding velocity, and atomic-scale reactions. The article concludes by emphasizing the importance of advanced microscopy techniques in understanding tribological mechanisms at different scales, bridging the gap between macro and nano-tribology studies.

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Introduction—Measurement Techniques and Applications

Cited by 2 publications

References 75 publications

Electrophoretic Deposition of 58S Bioactive Glass- Polymer Composite Coatings on 316L Stainless Steel: An Optimization for Corrosion, Bioactivity, and Cytocompatibility

Electrophoretic Deposition of 58S Bioactive Glass- Polymer Composite Coatings on 316L Stainless Steel: An Optimization for Corrosion, Bioactivity, and Cytocompatibility

Nano-scale wear: A critical review on its measuring methods and parameters affecting nano-tribology

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