Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 782, Issue -, Pages 875-880Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.12.261
Keywords
Boron nitride particles; Metal-matrix composites; Spark plasma sintering; Microstructure; Atomic structure calculations
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Funding
- Ministry of Education and Science of the Russian Federation [11.937.2017/Pi, 14.Y26.31.0005]
- Increase Competitiveness Program of National University of Science and Technology MISiS [2-2018-013]
- Science and Engineering Faculty, QUT
- Australian Research Council (ARC) [FL160100089]
- QUT Project [322170-0355/51]
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In recent years, there has been a great interest in the application of h-BN as a reinforcing phase in Al-based metal-matrix composites. The formation of intermediate phases, such as AIN and AIB(2), was frequently reported that had a positive effect on material strength. The present paper gives a detailed description of diffusion-controlled phase transformations in Al/BN composites produced by spark plasma sintering. The resulting structures have been thoroughly studied by a combination of X-ray diffraction, scanning electron microscopy, high-angle annular dark-field scanning transmission electron microscopy, and energy-dispersive spectroscopy. The phase transformations were investigated using density functional theory to support experimental observations. (C) 2018 Elsevier B.V. All rights reserved.
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