Characterization of three- and four-point bending properties of porous metal fiber sintered sheet

Wei Zhou, Qinghui Wang, Weisong Ling, Liangzong He, Yong Tang, Fan Wu, Jianlong Liao, K. S. Hui, K. N. Hui

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19 Citations (Scopus)


A novel porous metal fiber sintered sheet (PMFSS) with high porosity was fabricated by the solid-state sintering method of copper fibers. In this study, both three- and four-point bending setup were established to characterize the bending properties of PMFSS. Similar three stages in the three- and four-point bending fracture process were observed for the PMFSS with 80% porosity sintered at 900. °C for 60. min. Comparing with the three-point bending, it is found that much smaller bending force was obtained in the four-point bending test under the same displacement conditions. Moreover, the porosity and sintering parameters were also varied to investigate the influence on the bending properties of PMFSS. Both three- and four-point bending strength were found to be decreased with increasing porosity ranging from 70% to 90%. Higher sintering temperature produced higher bending strength for the PMFSS sintered in the temperature range of 700-1000. °C. Besides, the extension of holding time also could slightly affect the bending strength.

Original languageEnglish
Pages (from-to)522-527
Number of pages6
JournalMaterials and Design
Early online date9 Nov 2013
Publication statusPublished - Apr 2014


  • Bending properties
  • Porosity
  • Porous materials
  • Sintering parameters

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