In:
Journal of the American Ceramic Society, Wiley, Vol. 99, No. 1 ( 2016-01), p. 16-19
Abstract:
Submicrometer (200–800 nm) ZrB 2 powders have been successfully prepared via a new ZrO 2 –C– BN precursor powder system at a relatively low temperature (1550°C) for 1.5 h. As a moderate cost boron source, BN has a well‐defined stoichiometry and low impurity. Both thermodynamic and experimental results indicated that ZrC was formed below 1300°C, a temperature required for ZrB 2 formation. Moreover, the reaction of ZrC– BN mixture at 1300°C indicated that the ZrC acted as an effective direct reducing reagent for BN to form ZrB 2 , indicating that the pathway involving the formation of intermediate phase ZrC determined the formation mechanism.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
DOI:
10.1111/jace.2016.99.issue-1
Language:
English
Publisher:
Wiley
Publication Date:
2016
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
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