Editors: | F. Kongoli, M. de Campos, S. Lewis, S. Miller, S. Thomas |
Publisher: | Flogen Star OUTREACH |
Publication Year: | 2019 |
Pages: | 171 pages |
ISBN: | 978-1-989820-12-4 |
ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
One of the important tasks of modern materials science is the development of new composites with improved functional properties. Theoretical and experimental backgrounds of synthesis of a new class of nanocomposite materials based on a metal matrix are substantiated (iron, aluminum) with TiC nanofibers as the disperse phase. A new combined method for producing metal-based (iron, aluminum) composites is considered, including powder metallurgy and surface nanostructuring of the dispersed phase. The following stages of material synthesis are investigated: (1) preparation of a porous metal matrix, (2) ALD-assisted surface structuring of the porous metal matrix by TIC nanostructures 1-50 nm in size, and (3) pressing and sintering of samples to produce solid metal composite materials with TIC nanofibers in the bulk. This material can be presented in the form of "frame in the frame", i.e. a metal frame pierced by the frame of TiC nanowires. It is shown that despite the presence of residual porosity, the properties of the obtained samples are comparable with the properties of the mold-produced best steel grades containing expensive dopants. In the future, this approach will solve the problem of creating a new generation of nanostructured metal composites with improved mechanical properties for various fields of engineering (mechanical engineering, engine building).