Thermal Analysis for Monitoring Effects of Shock-Induced Physical, Mechanical, and Chemical Changes in Materials
Abstract
A NETZSCH DSC 404F3 Pegasus (registered trademark) thermal analysis equipment has been acquired for monitoring effects of physical, mechanical and chemical changes, introduced in materials due to shock compression and high-strain-rate deformations. It includes two furnaces, a rhodium furnace capable of measurements of specific heat at temperatures up to 1650 degrees C and a SiC furnace for analysis up to 1550 degrees C under normal atmosphere, and static and dynamic inert gas atmosphere. The system uses the Proteus measurement and analysis software for data acquisition, storage and evaluation with MS WINDOWS platform, which enables multitasking with simultaneous evaluation and operation of several thermal analysis approaches. The acquired system is being employed for understanding of polymorphous and amorphous-to-crystalline phase transformations, as well as non-homogeneous deformation occurring via shear banding in metallic glasses. The instrumentation will also be of benefit to our other DoD supported work on understanding of shock-activation leading to reactions in energetic/reactive materials. The thermal diagnostics equipment extends our current instrumentation capability beyond time- resolved measurements of shock stress and particle velocity measurements performed with gas-gun and laser-flyer impact experiments by providing a reference based on pre- and post-analysis for evaluating the effects of shock compression of inert and reactive materials.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 19, 2015
- Accession Number
- AD1010108
Entities
People
- Alex Bryant
- Jennifer Breidenich
- Naresh Thadhani
- Rene Diaz
Organizations
- Georgia Tech Research Corporation