Microstructure and mechanical properties of sintered porous magnesium using polymethyl methacrylate as the space holder

  • Yanze Bi
  • , Yang Zheng
  • , Yan Li*
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Porous Mg has been prepared by powder metallurgy using spherical polymethyl methacrylate (PMMA) as the space holder. The PMMA is thoroughly decomposed and removed from the porous Mg after being sintered at 400 °C and then 550 °C. Small amount of MgO forms by the effects of decomposition products. The sintered density of porous Mg decreases from 1.72 to 1.05 g cm-3 with increasing content of PMMA from 0% to 30%. The porosity of the porous Mg increases up to 40% with increasing content of PMMA. The ultimate compressive strength ranges between 25 and 170 MPa and decreases with increasing porosity.

Original languageEnglish
Pages (from-to)583-586
Number of pages4
JournalMaterials Letters
Volume161
DOIs
StatePublished - 15 Dec 2015

Keywords

  • Magnesium
  • Mechanical properties
  • Microstructure
  • PMMA
  • Porous materials
  • Powder metallurgy

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