Microhardness and Crack Resistance of Gallium Oxide

Microhardness and Crack Resistance of Gallium Oxide

The microhardness and crack resistance of two main gallium oxide polytypes: metastable α-Ga 2 O 3 with a corundum structure and β-Ga 2 O 3 (high-temperature phase) with a monoclinic crystal structure, have been studied using a Vickers method of diamond pyramid indentation. As far as we know, this is...

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Veröffentlicht in:Technical physics letters 2019-11, Vol.45 (11), p.1114-1117
Hauptverfasser: Nikolaev, V. I., Chikiryaka, A. V., Guzilova, L. I., Pechnikov, A. I.
Format: Artikel
Sprache:eng
Schlagworte:
Classical and Continuum Physics
Corundum
Crack propagation
Crystal structure
Diamonds
Gallium oxides
High temperature
Indentation
Mechanical properties
Physics
Physics and Astronomy
Polytypes
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Zusammenfassung:The microhardness and crack resistance of two main gallium oxide polytypes: metastable α-Ga 2 O 3 with a corundum structure and β-Ga 2 O 3 (high-temperature phase) with a monoclinic crystal structure, have been studied using a Vickers method of diamond pyramid indentation. As far as we know, this is the first attempt to compare the mechanical properties of the two polytypes of gallium oxide.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785019110117