Chengyang Sun

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Questions related from Chengyang Sun

How to detect Major element composition of non-touching mineral inclusions in diamond?

Raman spectroscopy has identified some silicate inclusions of alamandite and clinopyroxenes in thin-polished diamond sections, but these mineral inclusions are not exposed to the surface. How can...

19 August 2023 1,417 1 View

Recommendations for computational simulation about dislocations?

Recently I've been studying dislocations in diamonds, since computational simulation has already been an efficient method to help analyze dislocation nucleation, interaction as well as properties...

15 February 2023 867 2 View

How to determine the concentration of nitrogen of ppb levels in diamond?

Any related articles illustrating this? thank you all

02 May 2022 7,774 3 View

What mineral does the Raman peak of 690cm-1 stand for?

Recently I used Raman spectroscopy to analyze some inclusions in diamond, and some of the inclusions showing hexagonal outline feature displayed raman peaks of about 367, 690, and 1027, the peak...

18 April 2022 3,439 3 View