Growth of alkali metal periodates from silica gel and their characterization

TA, Al-Dhahir and G, Dhanaraj and HL, Bhat (1992) Growth of alkali metal periodates from silica gel and their characterization. In: Journal of Crystal Growth, 121 (1-2). pp. 132-140.

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Abstract

Single crystals (up to 1 cm size) of K, Rb and Cs periodates have been grown in silica gel. In general, good quality crystals were obtained in gel of specific gravity 1.04 and pH 4. The metal/iodine ratios were determined and compared with calculated values. Morphological studies were carried out using a bicircle optical goniometer. Other characterization methods include X-ray diffraction, optical absorption, differential scanning calorimetry and optical microscopy. Microscopic examination of CsIO4 crystals in particular has revealed the existence of ferroelastic domains in the crystal. The structural basis for the occurence of ferroelasticity in this crystal is discussed and the high temperature space group is predicted.

Item Type:	Journal Article
Publication:	Journal of Crystal Growth
Publisher:	Elsevier science
Additional Information:	Copyright of this article belongs to Elsevier science.
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	01 Apr 2011 09:04
Last Modified:	01 Apr 2011 09:04
URI:	http://eprints.iisc.ac.in/id/eprint/36150

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