High-Temperature Synthesis of Cast Ceramic Material Al2O3–Cr2O3 + ZrO2

A cast oxide ceramic material consisting of Al 2 O 3 –Cr 2 O 3 solid solution and ZrO 2 inclusions uniformly distributed in it was prepared through metallothermic SHS from highly exothermic thermite-type mixtures containing molybdenum (VI) and chromium (III) oxides and Al/Zr as a combined reducing a...

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Bibliographic Details
Published in:International journal of self-propagating high-temperature synthesis 2024-06, Vol.33 (2), p.116-121
Main Authors: Miloserdov, P. A., Gorshkov, V. A.
Format: Article
Language:English
Subjects:
Aluminum oxide
Chemistry and Materials Science
Chromium oxides
High temperature
Inclusions
Materials Science
Mixtures
Reducing agents
Solid solutions
Synthesis
Zirconium dioxide
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Summary:A cast oxide ceramic material consisting of Al 2 O 3 –Cr 2 O 3 solid solution and ZrO 2 inclusions uniformly distributed in it was prepared through metallothermic SHS from highly exothermic thermite-type mixtures containing molybdenum (VI) and chromium (III) oxides and Al/Zr as a combined reducing agent. The influence of green mixture mass on the synthesis parameters, composition, and microstructure of the final products was studied. The optimal conditions for high-temperature synthesis of cast composite oxide material consisting of 80 wt % Al 2 O 3 , 10 wt % Cr 2 O 3 , and 10 wt % ZrO 2 were determined.
ISSN:1061-3862
1934-788X
DOI:10.3103/S1061386224700055