Microhardness and Crack Resistance of Gallium Oxide

V. I. Nikolaev,A. V. Chikiryaka,L. I. Guzilova,A. I. Pechnikov

Technical Physics Letters（2019）

Cited 8|Views13

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Abstract

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.

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Key words

gallium oxide,microhardness,crack resistance,mechanical properties,Vickers method.

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