Formation of B sub(6) O Based Materials by Reactive Spark Plasma Sintering

Dense B sub(6) O based materials were prepared by reactive spark plasma sintering of B/B sub(2) O sub(3), B/B sub(2) O sub(3)/ZrO sub(2) B/ZrO sub(2), B sub(6) O/ZrO sub(2) powders and parameters of the materials were determined. The reactive plasma sintering ensured preparation of dense B sub(6) O...

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Bibliographic Details
Published in:Key Engineering Materials 2016-01, Vol.674, p.54-58
Main Authors: Grabis, J, Rasmane, D z, Steins, I, Lubane, M
Format: Article
Language:English
Subjects:
Additives
Boron
Crystallites
Formations
Nanocrystals
Precursors
Spark plasma sintering
Zirconium dioxide
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Summary:Dense B sub(6) O based materials were prepared by reactive spark plasma sintering of B/B sub(2) O sub(3), B/B sub(2) O sub(3)/ZrO sub(2) B/ZrO sub(2), B sub(6) O/ZrO sub(2) powders and parameters of the materials were determined. The reactive plasma sintering ensured preparation of dense B sub(6) O materials at 1800 [degrees]C and pressure of 30 MPa. Additives of nanocrystalline ZrO sub(2) to boron precursors led to formation of ZrB sub(2)-B sub(6) O composite with decreased amount of B sub(6) O. The crystallite size of the bulk materials was in the range of 18-40 nm but the size of unregular grains was in the range of 1.5-3.0 [mu]m.
ISSN:1013-9826
1662-9795
DOI:10.4028/www.scientific.net/KEM.674.54