Article
A Super-Hard High Entropy Boride Containing Hf, Mo, Ti, V, and W
Journal of the American Ceramic Society
Abstract
Super-Hard (Hf,Mo,Ti,V,W)B2 Was Synthesized by Boro-Carbothermal Reduction and Densified by Spark Plasma Sintering. This Composition Was Produced for the First Time as a Single-Phase Ceramic in the Present Research. the Optimized Ceramic Had a Single Hexagonal AlB2-Type Crystalline Phase with a Grain Size of 3.8 µm and Homogeneous Distribution of the Constituent Metals. the Vickers Hardness Exhibited the Indentation Size Effect, Increasing from 27 GPa at a Load of 9.8 N to as High as 66 GPa at a Load of 0.49 N. This is the Highest Hardness Reported to Date for High Entropy Boride Ceramics.
Department(s)
Materials Science and Engineering
Publication Status
Full Access
Keywords and Phrases
- borides,
- hardness,
- scanning electron microscopy,
- spark plasma sintering
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Wiley, All rights reserved.
Publication Date
1-1-2024
Publication Date
01 Jan 2024
Disciplines
Citation Information
Suzana Filipovic, Nina Obradovic, Greg E. Hilmas, William G. Fahrenholtz, et al.. "A Super-Hard High Entropy Boride Containing Hf, Mo, Ti, V, and W" Journal of the American Ceramic Society (2024) ISSN: 1551-2916; 0002-7820 Available at: http://works.bepress.com/greg-hilmas/326/
Office of Naval Research, Grant N00014‐21‐1‐2515