Nanomechanical Analysis of High Performance Materials

Tiwari, Atul

doi:10.1007/978-94-007-6919-9

Cited by 13 publications

(3 citation statements)

References 267 publications

(407 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To study mechanical properties at the nano- and micro-scale, a number of nano-/micro-mechanical testing (SSMT—small scale mechanical testing) methods [ 42 , 43 , 44 , 45 ] are employed. Atomic force microscopy (AFM) [ 46 , 47 , 48 , 49 ] and nano-indentometry (NI) [ 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 ] can be named as the most widely used ones.…”

Section: Methods Of Studying the Structural And Mechanical Properties...mentioning

confidence: 99%

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

et al. 2022

View full text Add to dashboard Cite

This review describes methods and results of studying the mechanical properties of wood at all scales: from nano- to macro-scale. The connection between the mechanical properties of material and its structure at all these levels is explored. It is shown that the existing size effects in the mechanical properties of wood, in a range of the characteristic sizes of the structure of about six orders of magnitude, correspond to the empirical Hall-Petch relation. This “law” was revealed more than 60 years ago in metals and alloys and later in other materials. The nature, as well as the particular type of the size dependences in different classes of materials can vary, but the general trend, “the smaller the stronger”, remains true both for wood and for other cellulose-containing materials. The possible mechanisms of the size effects in wood are being discussed. The correlations between the mechanical and thermophysical properties of wood are described. Several examples are used to demonstrate the possibility to forecast the macromechanical properties of wood by means of contactless thermographic express methods based on measuring temperature diffusivity. The research technique for dendrochronological and dendroclimatological studies by means of the analysis of microhardness and Young’s modulus radial dependences in annual growth rings is described.

show abstract

Section: Methods Of Studying the Structural And Mechanical Properties...mentioning

confidence: 99%

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The root-mean-square roughness (RMS) of samples was determined by Gwyddion software. The mechanical properties of the composites were characterized by the Peak Force QNM scanning probe technique [47]. For the Peak Force QNM measurements, we used sapphire as a calibrant for ScanAsyst-Air tip.…”

Section: Journal Pre-proofmentioning

confidence: 99%

Photodynamic-active smart biocompatible material for an antibacterial surface coating

Kováčová

Kleinová

Vajďák

et al. 2020

Journal of Photochemistry and Photobiology B: Biology

View full text Add to dashboard Cite

“…In order to operate under closed loop control, feedback control option was selected. All measurements have been performed using the standard three-sided pyramidal Berkovich tip indenter, with an average curvature radius of 100 nm [18,19]. Considering the half-space elastic deformation theory, H and E values can be calculated from the experimental data (load displacement curves) using the Oliver-Pharr (O&P) model [20,21].…”

Section: Nanoindentation Testsmentioning

confidence: 99%

Mechanical and nanomechanical properties of MWCNT/PP nanocomposite

Τσερπές

Chanteli

Pantelakis

et al. 2018

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

The mechanical and nanomechanical properties of multi-walled carbon nanotube-reinforced polypropylene (MWCNT/PP) nanocomposite were investigated through tension tests (conducted on 2 wt% and 5 wt% specimens) and nanoindentation tests (conducted on 2 wt% specimens). In addition, the structural properties and topography of the nanocomposite were characterized by means of scanning electron microscopy (SEM) and Scanning Probe Microscopy (SPM), respectively. The results from the tension tests reveal an enhancement and a considerable scatter in the Young's modulus and maximum stress of the MWCNT/PP nanocomposite for both MWCNT content. For the specimens with mechanical properties lower than the average values, the SEM and SPM images revealed poor dispersion and formation of large agglomerates. The hardness (as resistance to applied load) and Young's modulus were mapped at 300 nm of displacement, for a grid of 70  70 μm 2. Through projection, the resistance is clearly divided into 3 regions, namely the PP matrix, the interphase (region close to/between MWCNTs) and the regions of the MWCNT agglomerates. The resistance deviates from low values (few MPa) to 1.8 GPa. The present experimental study provides all necessary data for the model creation and validation of the MWCNT/PP nanocomposite.

show abstract

Nanomechanical Analysis of High Performance Materials

Cited by 13 publications

References 267 publications

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

Photodynamic-active smart biocompatible material for an antibacterial surface coating

Mechanical and nanomechanical properties of MWCNT/PP nanocomposite

Contact Info

Product

Resources

About