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Effects of HBO2 on phase and morphology of ZrB2 powders synthesized by carbothermal reduction.
- Source :
-
Ceramics International . Oct2017, Vol. 43 Issue 15, p12975-12978. 4p. - Publication Year :
- 2017
-
Abstract
- Zirconium diboride (ZrB 2 ) powders were synthesized by carbothermal reduction with ZrO 2 , HBO 2 , and carbon black as raw materials. The effects of reaction temperature and HBO 2 content on the phase and morphology of ZrB 2 powders were investigated. The phase composition was characterized by X-ray diffraction (XRD) and the micromorphology was observed by scanning electron microscope (SEM). The thermodynamic reaction process was studied. When the amount of HBO 2 was 60 wt%, pure ZrB 2 powders could be obtained, as indicated by XRD results. Hexagonal ZrB 2 particles ranging from 1 to 2 µm could be successfully prepared at 1600 °C in Ar atmosphere while adding 30 wt% NaCl. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 43
- Issue :
- 15
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 124440794
- Full Text :
- https://doi.org/10.1016/j.ceramint.2017.05.355