Mechanical characterization of polymeric films using depth-sensing instrument: Correlation between viscoelastic-plastic properties and scratch resistance

Pelletier, Hervé; Mendibide, Christophe; Riche, A.

doi:10.1016/j.porgcoat.2007.10.009

Cited by 41 publications

(23 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…By comparison with previous studies using such scratching procedure on different surfaces (coated steel, ceramic layers) [7][8][9], the main advantage of our built-in experimental set-up deals with in situ observations of the contact and of the residual groove during each pass, and by consequence with an accurate and comprehensive identification of the damage or failure events. Figures 4,5,6,7 describe the progression of the friction coefficient measured at each pass during repeated tests. In the case of amorphous polymeric rejuvenated surface, the average value of friction is shown to decrease with repeats during the first few passes.…”

Section: Discussionmentioning

confidence: 99%

“…They proposed the concept of scratch mapping to describe the mechanical response to range of scratching conditions by varying contact load and contact strains. However, classically, single pass scratch experiments are performed with increasing progressively the normal applied load at a constant sliding velocity, especially to identify rapidly irreversible deformation processes, characterized by different transitions of mechanical behaviour (plastic ploughing, ductile and brittle failure) and by the corresponding critical contact pressures [5,6]. However, in service for many applications, cracks or damages on polymeric surfaces during contact are produced at very low contact pressure (less than the yield stress of the material) and are due to non-monotonic loading at the same location.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wear Simulation of Polymer Using Multiscratch Test Procedure

2009

View full text Add to dashboard Cite

First experimental results about multi-pass scratch tests at low average contact pressure are presented. Scratch experiments are performed using a specific built-in microvisioscratch device that allows in situ observations of the contact area and of the residual groove during tests. For commercial grade of extruded polymethylmethacrylate (PMMA), evolutions of the apparent friction coefficient are studied as a function of the number of repeated loading cycles, at low mean contact pressure (less than 25 MPa). In parallel, in situ observations of the groove and of damage left on the surface are also reported and initiation of the wear process of amorphous polymeric surfaces is described.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wear Simulation of Polymer Using Multiscratch Test Procedure

2009

View full text Add to dashboard Cite

show abstract

“…[1][2][3] Moreover, the knowledge of mechanical properties such as Young's modulus and hardness (H) at nanolevel could be crucial for the selection, design, and application of membrane materials. [4][5][6] Therefore, investigation on the mechanical properties, interfacial adhesion, and bonding mechanisms of film/support has attracted a great deal of attention in the past decades. Polymer/ceramic composite membrane is a typical flexible film-rigid support composite system, which shows controllable chemical and physical properties by combining the effects of organic polymers and inorganic supports.…”

Section: Introductionmentioning

confidence: 99%

Interfacial adhesion between polymer separation layer and ceramic support for composite membrane

et al. 2009

View full text Add to dashboard Cite

An in situ characterization method for mechanical and adhesive properties of organic/ceramic composite membranes is built on the basis of nanoindentation technique in this work. The polydimethylsiloxane (PDMS) was used as the separation layer with the support of porous ZrO 2 /Al 2 O 3 ceramic tubes. The effects of roughness of the ceramic support and the viscosity of PDMS solution on the mechanical properties of the PDMS separation layer and the interfacial adhesion at the interface were investigated in detail. It was found that when the roughness of the ceramic support increased and the viscosity of PDMS solution decreased, the interfacial adhesion strength of PDMS/ceramic composite membrane increased, but these two variables had little effect on the mechanical properties of the PDMS separation layer. Our results indicate that the mechanical interlocking dominates the adhesion between the PDMS separation layer and the porous ceramic support. V

show abstract

“…The damage mechanism had never been analyzed. In fact, the damage modes of the cortical bone are similar to those of the coating material [30]. In the case of scratching with a spherical indenter, compressive stress formed in front of and under the indenter, while tensile stress occurred behind the indenter.…”

Section: Cracks Of Scratch and Debris Occurring In The Two Sectionsmentioning

confidence: 84%

Anisotropic Wear Resistance of Human Mandible Cortical Bone

Gao

Qian

2008

Tribol Lett

View full text Add to dashboard Cite

In order to evaluate the wear resistance, nanoscratch tests were conducted along different directions in the axial and the cross sections of mandible cortical bone, with the progressive loads from 0.1 to 80 mN. The morphology of scratch scars was showed via a field emission scanning electron microscope and an AMBIOS XP-2 stylus profilometer. The results indicated that the wear resistance of axial section was better than that of cross section. Furthermore, the wear resistance of axial section was affected by the different arrangement of lamellae. The wear degree was slighter when the scratches were conducted along the direction paralleling the osteon. The wear mechanism of cortical bone became more complicated with the increasing loads. It changed from the simple elastic-plastic deformation to the combination of deformation, delamination, and microcrack's propagation.

show abstract

Mechanical characterization of polymeric films using depth-sensing instrument: Correlation between viscoelastic-plastic properties and scratch resistance

Cited by 41 publications

References 28 publications

Wear Simulation of Polymer Using Multiscratch Test Procedure

Wear Simulation of Polymer Using Multiscratch Test Procedure

Interfacial adhesion between polymer separation layer and ceramic support for composite membrane

Anisotropic Wear Resistance of Human Mandible Cortical Bone

Contact Info

Product

Resources

About