Application of acoustic microscopy technique for the bulk visualization and elasticity measurement of nanocomposites

Scanning Probe Microscopy 2018

Bellucci, S.^1 ; Levin, V.^2 ; Morokov, E.^2 ; Petronyuk, Y.^2,3 ; Shubin, A.^4

INFN-Laboratori Nazionali di Frascati, Frascati

00044, Italy^1

N.M. Emanuel Institute of Biochemical Physics RAS, Moscow

119334, Russia^2

Scientific and Technological Centre of Unique Instrumentations RAS, Moscow

117342, Russia^3

OSTEC Enterprise Ltd, Moscow

121467, Russia^4

关键词: Acoustic microscopy;    Carbon Nano-Particles;    Carbon nanocomposite;    Elasticity measurement;    Exfoliated graphite;    Graphite nanoplatelets;    Local mechanical properties;    Nanoparticle aggregate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/443/1/012005/pdf
DOI  :  10.1088/1757-899X/443/1/012005

来源: IOP

【 摘 要 】

The impulse acoustic microscopy (AM) has been applied to study 3D microstructure and local mechanical properties of carbon nanocomposites. The particles of exfoliated graphite, graphite nanoplatelets, carbon nanoflakes, and carbon nanotubes have been used as a nanofiller. The AM technique shows the tendency of carbon nanoparticles to clusterization and formation of fractal micron-sized structures. Nanoparticle aggregates are visible on acoustic images for all types of carbon nanocomposites at arbitrary depth of their bulk. The elastic measurement demonstrates a weak dependence on type and content of carbon nanofiller. The impulse AM is the technique that provides direct data on bulk structure of a composite matter; it is characterized by combination of high efficiency and availability.