Indentation Test for Polymer-Film-Coated Computer Board Substrate

Measurement of Plastic Strain Induced by Seismic Loading Using EBSD and Indentation Test

Transactions of the Atomic Energy Society of Japan ◽

10.3327/taesj.j09.025 ◽

2010 ◽

Vol 9 (2) ◽

pp. 166-173 ◽

Cited By ~ 2

Author(s):

Masahiro KAWAKUBO ◽

Masayuki KAMAYA

Keyword(s):

Plastic Strain ◽

Indentation Test ◽

Seismic Loading

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A simple strategy for fabricating honeycomb patterns on commercially available polymer film under a wide humidity range

Journal of Materials Research ◽

10.1557/jmr.2020.304 ◽

2020 ◽

Vol 35 (23-24) ◽

pp. 3210-3221

Author(s):

Kai Huang ◽

Qi Cheng ◽

Honglei Zhang ◽

Ligang Lin ◽

Qiying Wang

Keyword(s):

Polymer Film ◽

Simple Strategy ◽

Humidity Range

Abstract

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Dynamics of Nanoparticle Chain Aggregates of Carbon Under Tension

MRS Proceedings ◽

10.1557/proc-778-u4.4 ◽

2003 ◽

Vol 778 ◽

Author(s):

Rajdip Bandyopadhyaya ◽

Weizhi Rong ◽

Yong J. Suh ◽

Sheldon K. Friedlander

Keyword(s):

Mechanical Properties ◽

Carbon Black ◽

Polymer Film ◽

Elastic Behavior ◽

Small Strains ◽

Transmission Electron ◽

Chain Aggregates ◽

Nanoparticle Chains ◽

Reinforcing Filler

AbstractCarbon black in the form of nanoparticle chains is used as a reinforcing filler in elastomers. However, the dynamics of the filler particles under tension and their role in the improvement of the mechanical properties of rubber are not well understood. We have studied experimentally the dynamics of isolated nanoparticle chain aggregates (NCAs) of carbon made by laser ablation, and also that of carbon black embedded in a polymer film. In situ studies of stretching and contraction of such chains in the transmission electron microscope (TEM) were conducted under different maximum values of strain. Stretching causes initially folded NCA to reorganize into a straight, taut configuration. Further stretching leads to either plastic deformation and breakage (at 37.4% strain) or to a partial elastic behavior of the chain at small strains (e.g. 2.3% strain). For all cases the chains were very flexible under tension. Similar reorientation and stretching was observed for carbon black chains embedded in a polymer film. Such flexible and elastic nature of NCAs point towards a possible mechanism of reinforcement of rubber by carbon black fillers.

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