Final Report: Thermal Analysis for Monitoring Effects of Shock- Induced Physical, Mechanical, and Chemical Changes in Materials

Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: Final Report: Thermal Analysis for Monitoring Effects of Shock-Induced Physical, Mechanical, and Chemical Changes in Materials Report Title A NETZSCH DSC 404F3 Pegasus® 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 1650oC and a SiC furnace for analysis up to 1550oC 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-tocrystalline 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 timeresolved measurements of shock stress and particle velocity measurements performed with gas-gun and laser-flyer impact experiments by providing a reference based on preand post-analysis for evaluating the effects of shock compression of inert and reactive materials. (a) Papers published in peer-reviewed journals (N/A for none) Enter List of papers submitted or published that acknowledge ARO support from the start of the project to the date of this printing. List the papers, including journal references, in the following categories: (b) Papers published in non-peer-reviewed journals (N/A for none) (c) Presentations Received Paper