The increment valuated of natural ruby by heat treatment
Conference proceedings article
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Publication Details
Author list: Kittiauchawal T., Kaewkhao J., Limsuwan P.
Publisher: Trans Tech Publications
Publication year: 2013
Volume number: 770
Start page: 233
End page: 236
Number of pages: 4
ISBN: 9783037857786
ISSN: 1022-6680
eISSN: 1662-8985
Languages: English-Great Britain (EN-GB)
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Abstract
This research aims to investigate the effects of heat treatment on color and clarity of ruby. The ruby were heated at 1200, 1300, 1400, 1500 and 1600ฐC in oxygen atmosphere for 40 hours, respectively. Each ruby before heated and after heated, the color measurement by spectrophotometer, to observe color changing and clarity. Found that, the samples had beautiful red and clarity more than before heated. So that, heat treatment of ruby at high temperature in oxygen atmosphere, could to increment valuated of natural ruby. ฉ (2013) Trans Tech Publications, Switzerland.
Keywords
Ruby