Growth and characterization of NaNbO3 synthesized using reaction-sintering method

The mixture of raw materials for stoichiometric NaNbO3 was pressed and sintered into ceramics without any calcination stage involved. Pure NaNbO3 phase was obtained at sintering temperatures of 1100-1200 deg C. The maximum linear shrinkage and the minimum porosity of the NaNbO3 sintered at 1200 deg...

Full description

Saved in:
Bibliographic Details
Published in:Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2007-01, Vol.136 (2-3), p.129-133
Main Authors: Hsiao, Yu-Jen, Chang, Yen-Hwei, Chang, Yee-Shin, Fang, Te-Hua, Chai, Yin-Lai, Chen, Guo-Ju, Huang, Tzu-Wei
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The mixture of raw materials for stoichiometric NaNbO3 was pressed and sintered into ceramics without any calcination stage involved. Pure NaNbO3 phase was obtained at sintering temperatures of 1100-1200 deg C. The maximum linear shrinkage and the minimum porosity of the NaNbO3 sintered at 1200 deg C was 22.9 and 1.6%. The activation energy of grain growth for 3 and 6h was about 86.85 and 90.58kJ/mol, respectively. When the sample was sintered at 1200 deg C for 3h, rhomb-shaped grains of NaNbO3 with well-defined edges were found similar to the ideal grain growth models.
ISSN:0921-5107
DOI:10.1016/j.mseb.2006.09.013