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arXiv · 2006.02340

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
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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.

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Ajeet K. Srivastav, Niraj Chawake, Devinder Yadav, N. S. Karthiselva, B. S. Murty. 2020-06-03. Localized pore evolution assisted densification during spark plasma sintering of nanocrystalline W-5wt.%Mo alloy. https://doi.org/10.1016/j.scriptamat.2018.09.013

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