Synthesis of Intermetallics and Ceramics With Ultra-Fine Microstructures
Abstract
The objective of our work has been to combine the beneficial effects of shock-compression of powders and solid-state structural and chemical changes for synthesis and fabrication of intermetallic alloys and ceramics with ultra-fine-grain microstructures. In particular, our research has focussed on studying the mechanisms and kinetics of shock-induced chemical reactions using simultaneous time-resolved stress and velocity measurements combined with shock recovery experiments. The possible shock-induced formation of otherwise difficult-to-synthesize carbon-nitride compounds has also been investigated. In addition, the reaction behavior of shock-compressed and subsequently activated powder mixtures has been investigated to determine its potential for synthesis of intermetallic alloys with highly refined microstructures. Finally, shock-compression has also been employed for fabrication of bulk compacts of nanocrystalline intermetallic alloys.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 21, 2001
- Accession Number
- ADA388444
Entities
People
- Naresh N. Thadhani
Organizations
- Georgia Tech