Localized pore evolution assisted densification during spark plasma sintering of nanocrystalline W-5wt.%Mo alloy

Ajeet K. Srivastav; Niraj Chawake; Devinder Yadav; N. S. Karthiselva; B. S. Murty

doi:10.1016/j.scriptamat.2018.09.013

Localized pore evolution assisted densification during spark plasma sintering of nanocrystalline W-5wt.%Mo alloy

Materials Science 2020-06-04 v1

Authors: Ajeet K. Srivastav , Niraj Chawake , Devinder Yadav , N. S. Karthiselva , B. S. Murty

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Abstract

The present work reports the role of different atomic mobility induced localized pore evolution on densification during spark plasma sintering of nanocrystalline W-Mo alloy powder. The shrinkage (or expansion) behavior of cold compacted milled powders was studied using dilatometry during non-isothermal sintering up to 1600 {\deg}C. Subsequently, the milled powders were densified to ~95% relative density using spark plasma sintering up to 1600 {\deg}C. The enhanced localized Joule heating due to dynamically evolved porous structure could be attributed for the densification during spark plasma sintering.

Keywords

spark plasma sintering nanocrystalline alloy pore evolution densification joule heating w-mo alloy

Cite

@article{arxiv.2006.02340,
  title  = {Localized pore evolution assisted densification during spark plasma sintering of nanocrystalline W-5wt.%Mo alloy},
  author = {Ajeet K. Srivastav and Niraj Chawake and Devinder Yadav and N. S. Karthiselva and B. S. Murty},
  journal= {arXiv preprint arXiv:2006.02340},
  year   = {2020}
}

Comments

13 pages, 4 figures

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