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Properties of colored topaz by new surface treatment

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2013, 23(2), pp.81~85
  • DOI : 10.6111/JKCGCT.2013.23.2.81
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering

이보현 1,  구창식 2,  YON SEOG JOO 2,  최현민 1,  Kim, Young-chool 3,  김선희 4

1한미보석감정원
2동신대학교
3㈜한미보석감정원
4한국과학기술연구원

Accredited

ABSTRACT

We performed analysis of composition and structure of coating layers by using ED-XRF and TOF-SIMS for some passion topaz of Swarovski which developed recently as new surface treatment of TCF (thermal color fusion)technique. In addition, we compared differences between Ti-coated topaz (Mystic topaz) and new treated colored topazes (passion topaz) with magnification observation and simplified durability test. As a result, we can observe similar characteristic clues in Ti-coated topaz and passion topaz by magnified observation. According to results of depth profile by TOF-SIMS, we can know that topaz is treated by multi-layer coating or surface diffusion coating. Moreover, the passion topaz which is treated by chemical reaction between metal elements shows more stable chemical resistance and higher Mohs’ hardness than Ti-coated topaz.

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