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Diamond crystallization in a CO2-rich alkaline carbonate melt with a nitrogen additive. / Khokhryakov, Alexander F.; Palyanov, Yuri N.; Kupriyanov, Igor N. et al.

In: Journal of Crystal Growth, Vol. 449, 01.09.2016, p. 119-128.

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Khokhryakov AF, Palyanov YN, Kupriyanov IN, Nechaev DV. Diamond crystallization in a CO2-rich alkaline carbonate melt with a nitrogen additive. Journal of Crystal Growth. 2016 Sept 1;449:119-128. doi: 10.1016/j.jcrysgro.2016.06.001

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Khokhryakov, Alexander F. ; Palyanov, Yuri N. ; Kupriyanov, Igor N. et al. / Diamond crystallization in a CO2-rich alkaline carbonate melt with a nitrogen additive. In: Journal of Crystal Growth. 2016 ; Vol. 449. pp. 119-128.

BibTeX

@article{c63569782c8348c9b97ea3b3c9bf24bb,
title = "Diamond crystallization in a CO2-rich alkaline carbonate melt with a nitrogen additive",
abstract = "Diamond crystallization was experimentally studied in a CO2-bearing alkaline carbonate melt with an increased content of nitrogen at pressure of 6.3 GPa and temperature of 1500 °C. The growth rate, morphology, internal structure of overgrown layers, and defect-impurity composition of newly formed diamond were investigated. The type of growth patterns on faces, internal structure, and nitrogen content were found to be controlled by both the crystallographic orientation of the growth surfaces and the structure of the original faces of diamond seed crystals. An overgrown layer has a uniform structure on the {100} plane faces of synthetic diamond and a fibrillar (fibrous) structure on the faceted surfaces of a natural diamond cube. The {111} faces have a polycentric vicinal relief with numerous twin intergrowths and micro twin lamellae. The stable form of diamond growth under experimental conditions is a curved-face hexoctahedron with small cube faces. The nitrogen impurity concentration in overgrown layers varies depending on the growth direction and surface type, from 100 to 1100 ppm.",
keywords = "A1. Crystal morphology, A1. Point defects, A2. High pressure and high temperature, A2. Single crystal growth, B1. Diamond",
author = "Khokhryakov, {Alexander F.} and Palyanov, {Yuri N.} and Kupriyanov, {Igor N.} and Nechaev, {Denis V.}",
year = "2016",
month = sep,
day = "1",
doi = "10.1016/j.jcrysgro.2016.06.001",
language = "English",
volume = "449",
pages = "119--128",
journal = "Journal of Crystal Growth",
issn = "0022-0248",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Diamond crystallization in a CO2-rich alkaline carbonate melt with a nitrogen additive

AU - Khokhryakov, Alexander F.

AU - Palyanov, Yuri N.

AU - Kupriyanov, Igor N.

AU - Nechaev, Denis V.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - Diamond crystallization was experimentally studied in a CO2-bearing alkaline carbonate melt with an increased content of nitrogen at pressure of 6.3 GPa and temperature of 1500 °C. The growth rate, morphology, internal structure of overgrown layers, and defect-impurity composition of newly formed diamond were investigated. The type of growth patterns on faces, internal structure, and nitrogen content were found to be controlled by both the crystallographic orientation of the growth surfaces and the structure of the original faces of diamond seed crystals. An overgrown layer has a uniform structure on the {100} plane faces of synthetic diamond and a fibrillar (fibrous) structure on the faceted surfaces of a natural diamond cube. The {111} faces have a polycentric vicinal relief with numerous twin intergrowths and micro twin lamellae. The stable form of diamond growth under experimental conditions is a curved-face hexoctahedron with small cube faces. The nitrogen impurity concentration in overgrown layers varies depending on the growth direction and surface type, from 100 to 1100 ppm.

AB - Diamond crystallization was experimentally studied in a CO2-bearing alkaline carbonate melt with an increased content of nitrogen at pressure of 6.3 GPa and temperature of 1500 °C. The growth rate, morphology, internal structure of overgrown layers, and defect-impurity composition of newly formed diamond were investigated. The type of growth patterns on faces, internal structure, and nitrogen content were found to be controlled by both the crystallographic orientation of the growth surfaces and the structure of the original faces of diamond seed crystals. An overgrown layer has a uniform structure on the {100} plane faces of synthetic diamond and a fibrillar (fibrous) structure on the faceted surfaces of a natural diamond cube. The {111} faces have a polycentric vicinal relief with numerous twin intergrowths and micro twin lamellae. The stable form of diamond growth under experimental conditions is a curved-face hexoctahedron with small cube faces. The nitrogen impurity concentration in overgrown layers varies depending on the growth direction and surface type, from 100 to 1100 ppm.

KW - A1. Crystal morphology

KW - A1. Point defects

KW - A2. High pressure and high temperature

KW - A2. Single crystal growth

KW - B1. Diamond

UR - http://www.scopus.com/inward/record.url?scp=85008410769&partnerID=8YFLogxK

U2 - 10.1016/j.jcrysgro.2016.06.001

DO - 10.1016/j.jcrysgro.2016.06.001

M3 - Article

AN - SCOPUS:85008410769

VL - 449

SP - 119

EP - 128

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

SN - 0022-0248

ER -

ID: 25723445