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Aesthetic Value Addition and Surface Study of Odisha Ruby Stones by Heat Treatment with Different Metal Oxide Additives

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Attempt has been made by the authors to enhance the aesthetic value of natural occurring gem variety ruby from Nuapada district, Odisha through heat treatment and metal oxide filling and the results are reported. A series of experiments by adding different metal oxide additives at a particular temperature were carried out to study the alteration of color and luster of the treated stones. The change in color and chemistry on the surface of the treated rubies with respect to the untreated one were compared. The gem rubies before and after treatment were characterized by XRD to observe the phase formation before and after pore filing with different metal oxide in to the ruby matrix. The phase confirmation, infrared absorption and the change in optical characteristics of the rubies has been analyzed using Fourier transform infrared spectroscopy and Raman spectroscopy.
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Keywords: HEAT-TREATMENT; METAL DIOXIDE FILLING; ODISHA; RUBY; SURFACE ANALYSIS

Document Type: Research Article

Publication date: February 1, 2016

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  • ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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