Characteristics of gem-quality synthetic diamond from New Diamond Technology in Russia
At a Glance
Section titled โAt a Glanceโ| Metadata | Details |
|---|---|
| Publication Date | 2015-10-31 |
| Journal | Journal of the Korean Crystal Growth and Crystal Technology |
| Authors | Hyunmin Choi, Youngchool Kim |
| Institutions | Hanmi Pharmaceutical (South Korea) |
Abstract
Section titled โAbstractโ๋ฌ์์ ์ํธํํ ๋ฅด๋ถ๋ฅดํฌ์ ์์ฌํ ๋ด ํ ํฌ๋๋ก์ง ๋ค์ด์๋ชฌ๋(NDT)์์ ์์ฐ๋ ๋ณด์์ฉ ํฉ์ฑ ๋ค์ด์๋ชฌ๋์ ๋ณด์ํ์ , ๋ถ๊ดํ์ ํน์ฑ์ ์กฐ์ฌํ์๋ค. ์ปฌ๋ฌ(๋ฌด์์ ๊ทน๋ฏธ๋์ ๋ถ์๋ฅผ ํจ์ ํ๊ณ ์๊ณ ๋ธ๋ฃจ๋ ๋ฏธ๋์ ๋ถ์๋ฅผ ํจ์ ํ๊ณ ์์)์ ํด๋๋ฆฌํฐ ๋ฑ๊ธ์ ์ฒ์ฐ ๋ค์ด์๋ชฌ๋์ ๋น๊ตํ ๋ ์์์ด ์์๋ค. NDT ํฉ์ฑ ๋ค์ด์๋ชฌ๋๋ ์์ธ์ ๋จํ์์ ๋ธ๋ฃจ, ์ค๋ ์ง์ ํ๊ด๊ณผ ์ธ๊ด ๋ฐ์์ด ๊ด์ฐฐ๋์๋ค. PL ๋ถ์์์ H3 ์ผํฐ์ NV ์ผํฐ๊ฐ ๋ฐ๊ฒฌ๋์์ผ๋ฉฐ, H3 ์ผํฐ์ intensity๋ ์ฒ์ฐ ๋ค์ด์๋ชฌ๋์ ๋น๊ตํ ๋ ๋งค์ฐ ์ฝํ๊ฒ ์กด์ฌํ์๋ค. NDT์์ ์์ฐ๋ ํฉ์ฑ ๋ค์ด์๋ชฌ๋์ ๋ณด์ํ์ , ๋ถ๊ดํ์ ํน์ง๋ค์ ํตํด ์ฒ์ฐ ๋ค์ด์๋ชฌ๋์ ๊ตฌ๋ถํ ์ ์๋ค. Gemological and spectroscopic properties of HPHT synthetic diamonds from New Diamond Technology (NDT) company in St. Petersburg (Russia) were examined. Their color (colorless, near-colorless with some boron and Fancy blue with high boron content) and clarity (<TEX>$VVS-SI_1$</TEX>) grades were comparable to those of top natural diamonds. NDT synthetic diamonds fluoresced and phosphoresced blue or orange under SWUV light. Photoluminescence spectra revealed H3 center with very small intensity and NV centers. The intensity of H3 in NDT synthetic diamond has very weak in comparison with natural one. Using a combination of gemological and spectroscopic tests, gem-quality synthetic diamonds from NDT can be distinguished from natural diamonds of similar quality.