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Gemological modification of local natural gemstones by ion beams

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dc.contributor.authorIntarasiri S.
dc.contributor.authorBootkul D.
dc.contributor.authorYu L.D.
dc.contributor.authorKamwanna T.
dc.contributor.authorSingkarat S.
dc.contributor.authorVilaithong T.
dc.date.accessioned2021-04-05T04:32:44Z
dc.date.available2021-04-05T04:32:44Z
dc.date.issued2009
dc.date.issuedBE2552
dc.description.abstractIon implantation was applied as an effective method to gemological modification of Thai local natural corundum including sapphire and ruby for enhancement of the essential qualities of the gemstones. Oxygen and nitrogen ions at medium and low energies to various fluences were implanted to the natural gemstones. The heavy ion irradiation modifies the color to desirable colors and improves the color distribution, transmission and lustre. These modifications lead to the improvement of quality of gemstones and thus the market value. Possible mechanisms of these modifications have been proposed. The main cause for these modifications could be the changes in oxidation states of impurity metals, induction of charge transfer from one metal cation to other and the production of color centres. © 2009 Elsevier B.V. All rights reserved.
dc.format.mimetypeapplication/pdf
dc.identifier.citationSurface and Coatings Technology. Vol 203, No.17-18 (2009), p.2788-2792
dc.identifier.doi10.1016/j.surfcoat.2009.02.122
dc.identifier.issn2578972
dc.identifier.other2-s2.0-67349212893
dc.identifier.urihttps://hdl.handle.net/20.500.14740/6387
dc.rights.holderมหาวิทยาลัยศรีนครินทรวิโรฒ
dc.subject.otherColor distributions
dc.subject.otherFluences
dc.subject.otherGemological modification
dc.subject.otherGemstone
dc.subject.otherHeavy ion irradiations
dc.subject.otherImpurity metals
dc.subject.otherLow energies
dc.subject.otherMarket values
dc.subject.otherMetal cations
dc.subject.otherNitrogen ions
dc.subject.otherOxidation state
dc.subject.otherCharge transfer
dc.subject.otherChemical modification
dc.subject.otherColor
dc.subject.otherHematite
dc.subject.otherIon bombardment
dc.subject.otherIon exchange
dc.subject.otherIon implantation
dc.subject.otherOxygen
dc.subject.otherRuby
dc.subject.otherSapphire
dc.subject.otherCorundum
dc.titleGemological modification of local natural gemstones by ion beams
dc.typeArticle
dspace.entity.typePublication
swu.datasource.scopushttps://www.scopus.com/inward/record.uri?eid=2-s2.0-67349212893&doi=10.1016%2fj.surfcoat.2009.02.122&partnerID=40&md5=29d66b50a1f8932d72d2b40ff80b51db

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