Synthesis of nanosized zirconium carbide by laser pyrolysis route

Nanosized zirconium carbide was obtained by carburization of tetragonal zirconia/free carbon nanocomposites synthesized by laser pyrolysis technique using zirconium butoxide as precursor and ethylene as sensitizer gas. To achieve the carboreduction, the powder had to be annealed at high temperature...

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Bibliographic Details
Published in:Journal of alloys and compounds 2009-08, Vol.483 (1), p.468-472
Main Authors: Combemale, L., Leconte, Y., Portier, X., Herlin-Boime, N., Reynaud, C.
Format: Article
Language:English
Subjects:
Chemical Sciences
Chemical synthesis methods
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Inorganic chemistry
Laser processing
Materials science
Methods of nanofabrication
Nanopowders
Nanoscale materials and structures: fabrication and characterization
Nanostructures
Physics
Scanning and transmission electron microscopy
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Summary:Nanosized zirconium carbide was obtained by carburization of tetragonal zirconia/free carbon nanocomposites synthesized by laser pyrolysis technique using zirconium butoxide as precursor and ethylene as sensitizer gas. To achieve the carboreduction, the powder had to be annealed at high temperature under Ar atmosphere to reduce the oxygen and form zirconium carbide (ZrC). Different temperatures were investigated for the heat treatment to obtain the complete carburization while keeping the size as low as possible. The final ZrC grain size was as low as 35 nm. Powders were characterized using X-ray diffraction, thermogravimetric analysis and transmission electron microscopy.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2008.07.159