Microstructure and mechanical properties of Mo0.9Cr0.1AlB solid solution. Issue 3 (March 2023)

• Record Type: Journal Article
• Authors: Wang, Ruijie; Wang, Shuai; Xu, Yanjie; Pang, Xianjuan; Li, Wuhui; Yang, Jun; Ni, Feng; Zhang, Yongzhen
• Is Part Of: Journal of the European Ceramic Society. Volume 43:Issue 3(2023)
• Page Start: 824
• Page End: 830
• Publication Date: 2023-03
• Subjects: Mo0.9Cr0.1AlB -- Solid solution -- Microstructure -- Mechanical properties; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.10.075
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: In this study, Mo0.9 Cr0.1 AlB solid solution ceramic bulks were prepared from the element powder mixtures using hot pressing sintering method. Compared with MoAlB ceramics, the grains of as-prepared Mo0.9 Cr0.1 AlB were refined obviously. The lattice constants of Mo0.9 Cr0.1 AlB were confirmed to be a = 3.205 Å, b = 13.999 Å and c = 3.098 Å. The density of Mo0.9 Cr0.1 AlB was lower than that of MoAlB due to the incorporation of Cr element. In addition, the effect of doping Cr element on the comprehensive mechanical properties was studied as well. The hardness and compressive strength were improved significantly. In comparison with MoAlB ceramic, the improvement of mechanical properties could be attributed to solid solution strengthening and grain refinement.