Abstract

We investigated the effect of a triple oxide additive (Al2O3-MgO-Y2O3) obtained by a new method on ceramics properties based on MoSi2. The ternary oxide was obtained from a ceramic-forming oligomer. Ceramic MoSi2 samples were obtained by hot pressing of molybdenum disilicide with ternary oxide 1, 3, 5, 10 wt% at 1650 °C and 30 MPa. The graphs of the dependence of density, bending strength and electrical resistance on the content of Al2O3-MgO-Y2O3 are presented. It was found that as the additive level was increased, the flexural strength increased to 89 MPa. The specific electrical resistance, depending on the oxide additive content, is extreme with a maximum for a composition containing 1 wt% Al2O3-MgO-Y2O3.

Details

Title
The impact of a sintering additive from Al, Mg, Y-oligomer on the physicochemical properties of MoSi2 ceramic
Author
Danilin, K D 1 ; Titov, D D 2 ; Lysenkov, A S 2 ; Kargin, Yu F 2 ; Konovalov, A A 2 ; Petrakova, N V 2 ; Gumennikova, E A 1 ; Senina, M O 3 ; Shcherbakova, G I 4 

 A.A. Baykov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334, Russia, Moscow, Leninskiy prospect, 49; Mendeleev University of chemical technology of Russia, 125047, Russia, Moscow, Miusskaya sq., 9 
 A.A. Baykov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, 119334, Russia, Moscow, Leninskiy prospect, 49 
 Mendeleev University of chemical technology of Russia, 125047, Russia, Moscow, Miusskaya sq., 9 
 State Research Institute for Chemistry and Technology of Organoelement Compounds, 105118, Russia, Moscow, sh Entuziastov 38 
Publication year
2021
Publication date
Jun 2021
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2543761182
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.