On Joule heating during spark plasma sintering of metal powders

Chawake, Niraj ; Pinto, Linford D. ; Srivastav, Ajeet K. ; Akkiraju, Karthik ; Murty, B. S. ; Kottada, Ravi Sankar (2014) On Joule heating during spark plasma sintering of metal powders Scripta Materialia, 93 . pp. 52-55. ISSN 1359-6462

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.scriptamat.2014.09.003


Joule heating as a primary heating source mechanism was probed during Spark Plasma Sintering (SPS) of pure metal powders (Fe, Ni and Cu). Resistance to electric path was estimated from voltage–current measurements obtained online during these experiments. Resistance was observed to saturate at the same value irrespective of the type of metal powder, after attaining a sintering temperature of ∼0.3Tm. This saturation in resistance is attributed primarily to the Joule heating that occurs at the graphite-foil and punch in an SPS system.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Spark Plasma Sintering; Joule Heating; Electrical Resistivity; Densification
ID Code:110940
Deposited On:06 Dec 2017 11:08
Last Modified:06 Dec 2017 11:08

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