Prasad, MJNV and Chokshi, AH (2011) On the exothermic peak during annealing of electrodeposited nanocrystalline nickel. In: Scripta Materialia, 64 (6). pp. 544-547.
On_the.pdf - Published Version
Restricted to Registered users only
Download (344Kb) | Request a copy
Nanocrystalline metals frequently exhibit poor thermal stability, and the exothermic peak in differential scanning calorimetry is usually attributed to grain growth. We show from experiments on electrodeposited nano-Ni with varying levels of S, and tests with microcrystalline Ni and S powders, that the exothermic peak is associated with the formation of a nickel sulfide phase and concurrent grain growth. Analysis suggests that segregation plays a more important role in limiting grain growth than second-phase particles in nano-Ni. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Nanocrystalline nickel; Grain growth; Second phase; Segregation|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||18 Mar 2011 10:35|
|Last Modified:||18 Mar 2011 10:35|
Actions (login required)