Formation of misoriented blocks during single-crystal CVD diamond growth

被引：0

作者：

Klepikov, I. V. ^{[1
,2
,3
,10
]}

Koliadina, A. V. ^{[1
]}

Vasilev, E. A. ^{[4
]}

Isakove, R. V. ^{[5
]}

Belashov, I. V. ^{[6
]}

Alimov, P. N. ^{[6
]}

Kudryavtsev, A. A. ^{[7
]}

Antonov, A. V. ^{[8
]}

Aneli, I. D. ^{[1
]}

Liashcev, A. V. ^{[9
]}

机构：

[1] OOO NPK Almaz, 2 Voskova St,Sestroretsk, St Petersburg 197706, Russia

[2] St Petersburg State Univ, 7-9 Univ Skaya Embankment, St Petersburg 199034, Russia

[3] Russian Technol Univ MIREA, 78 Vernadsky Ave, Moscow 119454, Russia

[4] St Petersburg Min Univ, 2 21st Line, St Petersburg 199106, Russia

[5] New Diamond Technol LLC, 2 Voskova St, St Petersburg 197706, Russia

[6] OOO Almaznye Tekhnol, Petrozavodskaya St,9,Khovrino, Moscow, Russia

[7] OOO Tescan, Grazhdansky Prospekt 11, St Petersburg 195220, Russia

[8] AP Karpinsky Russian Geol Res Inst, 74 Sredniy Prospect, St Petersburg 199106, Russia

[9] AO Tethys Pro, POB 73, Moscow 117042, Russia

[10] OOO NPK Almaz, St Petersburg, Russia

来源：

INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 2024年 / 120卷

基金：

俄罗斯科学基金会;

关键词：

CVD diamond; Internal structure; EBSD; Cathodoluminescence; Single crystal; Polycrystal; Epitaxy; Misorientation; RATE HOMOEPITAXIAL GROWTH; NITROGEN ADDITION; QUALITY; DEPOSITION; MORPHOLOGY; PHOSPHORESCENCE; TEMPERATURE;

D O I：

10.1016/j.ijrmhm.2024.106571

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the results of a CVD diamond crystal growth experiment on an HPHT type IIa substrate (9 x 9 mm). Data acquired through cathodoluminescence and EBSD methods shed light on the aspects of the formation of a polycrystalline shell around a single crystal of CVD diamond. CVD diamond exhibits orientation features of the polycrystalline shell, microblocks, low-angle boundaries, and linear hexagonal macrostructures of dislocation origin. Crystal splitting occurs when the dislocation density increases from the geometric center to the periphery. Such CVD diamonds exhibit a continuous transition from single crystal to polycrystal through a block-type crystal.

引用

页数：8

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