2019-Sustainable Industrial Processing Summit
SIPS2019 Volume 11: New and Advanced Materials, Technologies, and Manufacturing
| Editors: | F. Kongoli, F. Marquis, N. Chikhradze, T. Prikhna |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2019 |
| Pages: | 174 pages |
| ISBN: | 978-1-989820-10-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Advances in Synthesis and Densification of Heterogeneous Ultrafine and Nanostructured Materials and Applications in Components and Devices
Fernand D. S. Marquis1; Nikoloz Chikhradze2; Tetiana Prikhna3; Eugene Olevsky1;1SAN DIEGO STATE UNIVERSITY, San Diego, United States; 2G. TSULUKIDZE MINING INSTITUTE, Tbilisi, Georgia; 3INSTITUTE FOR SUPERHARD MATERIALS, Kiev, Ukraine;
Type of Paper: Keynote
Id Paper: 456
Topic: 48
Abstract:
Because the strength, toughness and other engineering properties of heterogeneous materials are strong dependent on their grain size and density, the quest to achieve simultaneously dense and fine, ultrafine and nanostructured grain size materials has been one of the most important in materials science and engineering. In this work we explore novel approaches for producing dense and fine, ultrafine and nanostructured heterogeneous materials. Typical approaches consist of acoustic cavitation, high energy planetary ball milling, reaction synthesis, and shock synthesis and modified spark plasma synthesis, followed by dynamic and static consolidation and densification pre and post reaction synthesis. Typical heterogeneous multiphase, multi microstructural constituent materials covered in this work consist of tungsten heavy alloys, coated graphite powders, metal silicide and aluminides and ceramic composites. The synthesized and densified materials were fully characterized by OM, SEM, TEM, EDX analysis, quantitative image analysis, X-Ray diffraction and mechanical testing. This paper presents and discusses the effect of reaction and processing parameters on the microstructure, densification, strength and toughness of typical heterogeneous materials and their application into the manufacture of advanced components and devices.