Evaluation of fibre-cement interfacial properties by SEM-based push-out tests

Michał A. Glinicki 2Jolanta Janczak-Rusch 1

1. Empa, Materials Technology and Research (Empa), Überlandstrasse 129, Dübendorf 8600, Switzerland
2. Polish Academy of Sciences, Institute of Fundamental Technological Research (IPPT), Swietokrzyska, Warszawa 00-049, Poland

Abstract

SEM-based push-out tests were performed for interfacial characterization of fibre reinforced cement composites. The range of experiments covered strands of zirconia glass filaments of diameters ranging from 13 to 15 µm and cementitious matrices modified with various mineral additives.

The push-out tests were performed on thin slices, about 450-600 µm, cut out of the specimens perpendicularly to the direction of glass filaments. During testing a continuous recording of load and displacement of the fibre was performed at a constant push velocity of about 0.2 µm/s. In order to evaluate a significance of wear of the interface a push-back testing was also performed. Simultaneous observation of push-out or push-back events was possible at SEM resolution rates.

Test results revealed significant differences due to introduced matrix modifications as well as to aging of specimens. Both stress-based approach and energy-based approach was applied for the analysis of interfacial properties. Obtained results could be well correlated to the phenomena observed in flexural toughness testing and SEM/EDX and XRD data obtained in an accompanied research program.

Related papers
  1. Experimental evaluation of melting point depression in AlSi/AlN nanomultilayer system
  2. How to join heat sensitive materials?
  3. The Wetting Behaviour and Interface Structure of Unreinforced and Particle Reinforced Lead-Free Solders
  4. Optimization of particle reinforced lead-free solders
  5. Microstructural evaluation during particles addition to lead-free solders
  6. Digital analysis of microscopic images for crack system evaluation in concrete elements
  7. Fractography as a tool to optimize joint design and the brazing process
  8. Development of nanoparticle reinforced brazing filler metals and solders: the aspects of downscaling from micro to nanoscale
  9. Description of the mechanical performance of Cu-SnAgCu-Cu joints
  10. Size and constraining effects in lead-free solder joints
  11. Comparison of three different active filler metals used for brazing ceramic-to-ceramic and ceramic-to-metal joints
  12. On the Relief of the Residual Stresses in Ceramic-Metal Joints by a Layered Braze Structure
  13. Model for intermetallic phase and intermetallic compound solidification during diffusion soldering
  14. Transition from solidification to the first solid/solid transformation during diffusion soldering

Presentation: oral at E-MRS Fall Meeting 2005, Symposium G, by Michał A. Glinicki
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-22 12:38
Revised:   2009-06-07 00:44
Google
 
Web science24.com
© 1998-2018 pielaszek research, all rights reserved Powered by the Conference Engine