Feasibility for non-destructive discrimination of natural and beryllium-diffused sapphires using Raman spectroscopy
DC Field | Value | Language |
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dc.contributor.author | Chang, Kyeol | - |
dc.contributor.author | Lee, Sanguk | - |
dc.contributor.author | Park, Jimin | - |
dc.contributor.author | Chung, Hoeil | - |
dc.date.accessioned | 2022-07-15T18:10:03Z | - |
dc.date.available | 2022-07-15T18:10:03Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-03 | - |
dc.identifier.issn | 0039-9140 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/154994 | - |
dc.description.abstract | Raman spectroscopy based non-destructive discrimination between natural and beryllium-diffused (Be diffused) sapphires has been attempted. The initial examination of Raman image acquired on a sapphire revealed that microscopic structural and compositional heterogeneity was apparent in the sample, so acquisition of spectra able to represent a whole body of sapphire rather than a localized area was necessary for a reliable discrimination. For this purpose, a wide area illumination (WAI) scheme (illumination area: 28.3 mm(2)) providing a large sampling volume was employed to collect representative Raman spectra of sapphires. Upon the diffusion of Be into a sapphire, the band shift originated from varied lattice structure by substitution of Be at cation sites was observed and utilized as a valuable spectral signature for the discrimination. In the domain of principal component (PC) scores, the groups of natural and Be-diffused sapphires were identifiable with minor overlapping and the cross validated discrimination error was 7.3% when k-Nearest Neighbor (k-NN) was used as a classifier. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.title | Feasibility for non-destructive discrimination of natural and beryllium-diffused sapphires using Raman spectroscopy | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chung, Hoeil | - |
dc.identifier.doi | 10.1016/j.talanta.2015.11.064 | - |
dc.identifier.scopusid | 2-s2.0-84949599877 | - |
dc.identifier.wosid | 000368866900043 | - |
dc.identifier.bibliographicCitation | TALANTA, v.149, pp.335 - 340 | - |
dc.relation.isPartOf | TALANTA | - |
dc.citation.title | TALANTA | - |
dc.citation.volume | 149 | - |
dc.citation.startPage | 335 | - |
dc.citation.endPage | 340 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Analytical | - |
dc.subject.keywordPlus | PCA-LDA | - |
dc.subject.keywordPlus | TITANIUM | - |
dc.subject.keywordPlus | PLS | - |
dc.subject.keywordAuthor | Natural sapphire | - |
dc.subject.keywordAuthor | Be-diffused sapphire | - |
dc.subject.keywordAuthor | Representative Raman sampling | - |
dc.subject.keywordAuthor | Multivariate discrimination | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0039914015305166?via%3Dihub | - |
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