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Figure 3
(a) Achievable pressure as a function of reaction volume for various HPHT apparatuses (inserts: schematic diamond anvil cell, multianvil at ESRF (France), piston-cylinder at IMPMC/France, toroid at LSPM (France). (b) Microhardness (Vickers & Knoop) tester at IMPMC, Sorbonne University (France). (c) Mosaic areas of hexagonal polytypes can be identified using electronic diffraction and typical atomic arrangements on indented 111 single-crystal Si surface (Sasidharan Nisha et al., 2025View full citation).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 82| Part 3| June 2026| Pages 280-298
https://doi.org/10.1107/S2052520626004026
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