Context
Chemically induced disorder order transition in magnesium aluminium spinel
Title:
Chemically induced disorder order transition in magnesium aluminium spinel
Archive:
Dspace@nitr
Author(s):
Barpanda, P
Behera, S K
Gupta, P K
Pratihar, S K
Bhattacharyya, S
Behera, S K
Gupta, P K
Pratihar, S K
Bhattacharyya, S
Date:
2005-08-01
Abstract:
Copyright for this article belongs to Elsevier Science Ltd
DOI: http://dx.doi.org/10.1016/j.jeurceramsoc.2005.04.032
Magnesium aluminate spinel (MgAl2O4) spinel powder was synthesized by nitrate citrate auto-ignition route taking different ratios of nitrate and citrate solution. The ‘as prepared’ black ash was calcined at different temperatures in the range 650–1250 °C for 9 h. Phase evolution of calcined powder samples as studied by X-ray diffraction indicates the presence of disorder at lower calcination temperatures, which transforms to an ordered structure at higher calcination temperatures. Finally, Raman spectroscopy confirms the order–disorder phase transition in spinel sample
DOI: http://dx.doi.org/10.1016/j.jeurceramsoc.2005.04.032
Magnesium aluminate spinel (MgAl2O4) spinel powder was synthesized by nitrate citrate auto-ignition route taking different ratios of nitrate and citrate solution. The ‘as prepared’ black ash was calcined at different temperatures in the range 650–1250 °C for 9 h. Phase evolution of calcined powder samples as studied by X-ray diffraction indicates the presence of disorder at lower calcination temperatures, which transforms to an ordered structure at higher calcination temperatures. Finally, Raman spectroscopy confirms the order–disorder phase transition in spinel sample
Index terms:
Discipline(s):
B. X-ray methods
Subject(s):
B. Spectroscopy; Chemical preparation; Spinels
Method/Approach:
Coverage:
Publisher:
Elsevier
Contributors:
Source:
Language:
en
Relation:
Type:
Article
Format:
624435 bytes
application/pdf
Copyright Information:
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