Materials Characterization & Imaging – Page 29

Microstructure and tribological properties of CrTiAlN nanoscale composite coatings on 65Mn steels deposited by multi arc ion plating technology

Cai Z., Zhang P., Academy of Armored Force Engineering, CN

In order to improve the life of piston rings, a multicomponent CrTiAlN composite coatings with different chemical composition are deposited on the surface of 65Mn steels by multi-ion plating technology in a gas mixture of [...]

Nano-imprinting technology applied in pentacene films

Chang M-H, Chou W-Y, National Cheng Kung University, TW

The control of polymorphism in organic semiconductor films has attracted considerable interest for improvement in the device performance. In the present study, nano-imprinting technology is used to control polymorphism in pentacene film. Furthermore, we demonstrate [...]

Structural and Mechanical Changes in Heart Mitochondria of Rat by AFM

Lee G.J., Lee J.W., Chae S.-J., Kang S-W, Lee G.J., Lee J.W., Ha S.J., Kim W., Kim Y., Kim W., Kim Y., Park H.K., Kyung Hee University, KR

Mitochondria play critical roles in both the life and death of cardiac myocytes. Various factors such as loss of ATP synthesis and increase of ATP hydrolysis, impairment in ionic homeostasis, formation of reactive oxygen species [...]

A Novel Method for Measuring the Sizes and Concentrations of 5-500 nm Particles in Colloidal Suspensions

Van Schooneveld H.G., Litchy M.R., Grant D.G., CT Associates, Inc, US

A new measurement technique has been developed that allows for measurement of particles as small as 5 nanometers in colloidal suspensions. The technique has demonstrated the ability to provide unique and useful particle size distribution [...]

Passive Microrheology : Non Contact Measurement of Viscoelastic Properties of Biopolymers

Tisserand C., Kotzev A., Fleury M., Brunel L., Bru P., Brunel L., Meunier G., Formulaction, FR

This work presents a new technique of the passive microrheology for the study of the microstructure properties of soft materials. Our technology uses Multi Speckle DWS (MS-DWS) set-up in backscattering with a video camera. It [...]

Passive Microrheology : Non Intrusive Measurement of the Emulsions Stability

Tisserand C., Fleury M., Brunel L., Bru P., Brunel L., Meunier G., Formulaction, FR

This work presents a new technique of the passive microrheology for the study of the microstructure properties of soft materials like emulsions. Our technology uses Multi Speckle DWS (MS-DWS) set-up in backscattering with a video [...]

Nano-mapping Material Interfaces via Hot Electrons

Goh K.E.J., Troadec C., Institute of Materials Research and Engineering, SG

As devices shrink below 100 nm in size, nanoscale imperfections (due to defects and doping) at material interfaces become significant perturbations to ideal device characteristics and in some cases can dominate the device behavior. Of [...]

Laser Postionization Secondary Neutral Mass Spectrometry for Analysis on the Nanometer-Scale – the Followup

Veryovkin I.V., Baryshev S.V., Zinovev A.V., Tripa C.E., Peng Q., Elam J.W., Pellin M.J., Argonne National Laboratory, US

Depth resolution on the order of a few atomic layers has been demonstrated by initial tests of the dual beam sputter depth profiling with the SARISA laser post-ionization secondary neutral mass spectrometry instrument, which was [...]

Mechanical properties of PECVD Si3N4 thin films with rapid thermal annealing using finite element simulation

Chiang C-Y, Huang Z-K, Chen K.-S., National Cheng Kung University, TW

The entire study includes Si3N4 specimen fabrication, material and mechanical characterization, a new physical model derivation, as well as the corresponding finite element analysis (FEA) and simulations. Nevertheless, the standard method used for nanoindentation were [...]

Synthesis of Polypyrrole within Polymeric Nanotemplates in Aqueous Environment

Li X., Maladier-Jugroot C., Royal Military College of Canada, CA

cations (1-2). Polypyrrole is one of the most studied conducting polymers due to its good electrical conductivity, environmental stability and relatively easy synthesis (3-6). Earlier we reported an innovative way of synthesizing polypyrrole within nanotemplates [...]