Competing High-Temperature Deformation Mechanisms in Mo(Si,Al)2 –Al2 O3 Composites
Journal article, 2024
Mo(Si,Al)2–Al2O3 composites were tested in four-point bending at 1300 °C. The addition of Al2O3 led to a decrease in grain size, and a subsequent decrease in strength for materials containing up to 15 wt pct Al2O3. At higher Al2O3 fractions, the decrease in grain size saturates and the strength is recovered as the Al2O3 particles prevent grain boundary sliding.
Author
Aina Edgren
Kanthal AB
Chalmers, Physics, Microstructure Physics
Erik G. Strom
Kanthal AB
Magnus Hörnqvist Colliander
Chalmers, Physics, Microstructure Physics
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
1073-5623 (ISSN)
Vol. 55 9 3220-3225Developing next generation high temperature MoSi2 materials
Swedish Foundation for Strategic Research (SSF) (ID18-0064), 2019-10-01 -- 2023-09-30.
Subject Categories
Applied Mechanics
DOI
10.1007/s11661-024-07520-7