Work

Compositionally complex AlB2-type diborides in dissociated air plasma

Year: 2024

Type: article

Abstract: Multi-metal compositionally complex (CC) AlB 2 -type diboride solid solutions (SS) containing IV-V-VI group elements are garnering a steadily growing research interest. The present work explores the composition dependence of oxidation resistance on nominally equiatomic (Hf,Me,Ta,Ti,Zr)B 2 SS, Me = Nb or Cr, exposed to a dissociated air plasma (total pressure of about 1 kPa): specimens were exposed for 5 min at some selected set points between 1800 K and 2500 K using a solar furnace . The CC diboride with Nb showed superior resistance to oxidation compared to that with Cr. The experimental results showed good agreement with predictions based on a thermodynamic assessment.

Source: Journal of the European Ceramic Society

DOI: 10.1016/j.jeurceramsoc.2024.116963

Authors: F. Monteverde, C. Pellegrini, M. Balat-Pichelin, W. Fahrenholtz, G. Hilmas

Institutions: Institute of Science, Technology and Sustainability for Ceramics, National Research Council, Centre National de la Recherche Scientifique, Laboratoire Procédés, Matériaux et Energie Solaire, Missouri University of Science and Technology

Language: English

Topic: Advanced ceramic materials synthesis

Subfield: Ceramics and Composites

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,900

Funders: National Science Foundation, Missouri University of Science and Technology, Office of Naval Research, Office of Naval Research Global