Thermal Analysis Instrumentation for Kinetics of Shocked Materials
Abstract
This report describes the development of thermal analysis instrumentation for studies of the kinetics of chemical reactions and phase transformations of shock compressed powder materials. The instrumentation consists of a Perkin-Elmer differential thermal analyzer and a "power-compensated" differential scanning calorimeter, both equipped with controlled gas flow and vacuum. The objective of the instrumentation is to accurately determine the thermodynamics and kinetics of chemical and structural c%anges occurring in shock-compressed materials. The thermal analysis system is used to obtain flindamental data, including onset temperatures for chemical reactions, amorphous-to-crystalline phase transformations, and austenite/martensite transformation temperatures in shock densified powder mixtures. The measurements allow determination of the apparent activation energies, to model the enhanced reaction and transformation behavior of shock- compressed materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 12, 1999
- Accession Number
- ADA365261
Entities
People
- Kevin Vandersall
- Naresh Thadhani
- Shantanu Namjoshi
- Xiao Xu
Organizations
- Georgia Tech