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paper

On the hardness of boron (III) oxide

arXiv:1101.2965 · doi:10.3103/S1063457608010097

Abstract

Our findings show that the hardness of glass-like B2O3 is of about 1.5 GPa, while the hardness of the high-pressure phase is higher by a factor of 10 (16(5) GPa) and comparable with the hardness (16 GPa) of the WC-10% Co hard alloy.