Journal
SCRIPTA MATERIALIA
Volume 99, Issue -, Pages 69-72Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2014.11.031
Keywords
Boron suboxide; Powder processing; Nanostructured materials; Spark plasma sintering
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Funding
- Temasek Laboratories @NTU
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Star-shaped boron suboxide (B6O) nanoplates were formed through a liquid-phase reaction of amorphous boron and boron oxide. The formation of the five-vertex B6O crystal is attributed to the oxygen-deficient state of B6Ox, where x < 1, which correlates to the lattice parameters. The mechanical properties of spark plasma sintered B6O show a hardness of 34.8 GPa and a fracture toughness of 4.0 MPa.m(1/2). The understanding of the relationship between crystal atomic structure and crystal morphology could be employed in the design of other boron-rich compounds. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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