DSpace@nitr >
National Institue of Technology- Rourkela >
Journal Articles >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/192

Title: Influence of ZrO2 on the thermo-mechanical response of nano-ZTA
Authors: Sarkar, D
Adak, S
Chu, M C
Cho, S J
Mitra, N K
Keywords: Grain size
Nanocomposites
. Thermal shock resistance
ZrO2
Issue Date: 2006
Publisher: Elsevier
Citation: Ceramics International (Accepted Post Print)
Abstract: Zirconia dispersed alumina powders have been synthesized in homogenous condition by following the wet interaction process at varying ZrO2 content and the thermo-mechanical behavior of the same has been studied. The tetragonal phase is retained at room temperature without any deliberate addition of stabilizer, which has been explained on the basis of particle size effect in terms of lower surface energy of the t-phase compensating for the difference in chemical free energy. Flexural strength follows an inverse relation with temperature due to reduction of driving force for t → m transformation. The toughness and strength reduce significantly above 10 mol.% ZrO2 beyond which comparatively large grain growth is observed. The thermal expansion hysteresis associated with t → m transformation is evident with martensitic temperature influenced by ZrO2 content and grain size.
Description: Copyright for this article belongs to Elsevier Science Ltd http://dx.doi.org/10.1016/j.ceramint.2005.09.012
URI: http://hdl.handle.net/2080/192
Appears in Collections:Journal Articles

Files in This Item:

File Description SizeFormat
sarkar6.pdf631KbAdobe PDFView/Open

Show full item record

All items in DSpace are protected by copyright, with all rights reserved.

 

Powered by DSpace Feedback