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Observation of Surface Microstructure of HPHT Synthetic Diamond Crystals and Genesis Discussion
Yankuang ceshi, 2019 BACKGROUND As the world's largest producer of synthetic diamonds, China accounts for more than 90% of the world's total production, of which high pressure-high temperature (HPHT) synthetic diamonds are dominant.
WU Xu-xu +8 more
doaj +1 more source
Литосфера, 2020 Research subject. The article presents the results of a microscopic and photogoniometric study of natural rounded diamonds of tetraghexahedral habit from the kimberlite pipe “Internationalnaya” (Yakutia). The diamonds was partially dissolved in a sulphur-
V. M. Sonin +5 more
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Black Diamonds at Brane Junctions [PDF]
, 2000 We discuss the properties of black holes in brane-world scenarios where our universe is viewed as a four-dimensional sub-manifold of some higher-dimensional spacetime.
A. Chamblin +18 more
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Exfoliated hexagonal BN as gate dielectric for InSb nanowire quantum dots with improved gate hysteresis and charge noise [PDF]
, 2020 We characterize InSb quantum dots induced by bottom finger gates within a nanowire that is grown via the vapor-liquid-solid process. The gates are separated from the nanowire by an exfoliated 35\,nm thin hexagonal BN flake.
Bakkers, Erik P. A. M. +10 more
core +2 more sources
Mineral inclusions in diamonds may be synchronous but not syngenetic
Nature Communications, 2017 It is widely assumed that mineral inclusions and their host diamonds are ‘syngenetic’ in origin, which means that they formed simultaneously and from the same chemical processes.
F. Nestola, H. Jung, L. Taylor
semanticscholar +1 more source
Heliyon, 2020 The Kimberley Process Certification Scheme (KPCS) was established in 2000 as a means of controlling the flow of conflict diamonds, mostly, from the African continent. In 2013, the KPCS imposed an embargo on diamonds from the Central African Republic (CAR)
Susan Brill +2 more
doaj +1 more source
, 2008 This paper describes the experimental studies of the formation of nano-diamonds during detonation of TNT/RDX 50/50 mixture with small-angle x-ray scattering (SAXS) method at a synchrotron radiation beam on VEPP-3 accelerator.
Aleshaev +12 more
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Revue d'anthropologie des connaissances, 2020 This article puts forth the notion of visual refraction to analyze the subjective and technical construction of grading certificates in the global diamond trade.
Matthieu Bolay, Filipe Calvão
doaj +1 more source
On Sub-Propositional Fragments of Modal Logic [PDF]
, 2018 In this paper, we consider the well-known modal logics $\mathbf{K}$, $\mathbf{T}$, $\mathbf{K4}$, and $\mathbf{S4}$, and we study some of their sub-propositional fragments, namely the classical Horn fragment, the Krom fragment, the so-called core ...
Bresolin, Davide +2 more
core +3 more sources