Temperature is a difficult thermodynamic variable to measure in dynamic compression experiments. Optical pyrometry is a general-purpose technique for measuring temperature from a radiant surface, but that surface is often the interface between distinct materials with temperatures that vary spatially along the loading direction. This leads to a fundamental problem: how does the measured interface temperature relate to this temperature profile along the compression axis? Numerical analysis of loading history and thermal diffusion at these interfaces shows that seemingly subtle changes in experiment geometry can lead to very different temperature profiles. We compare these results to laboratory temperature measurements of shock-compressed tin.
Hartsfield, T. M., et al. "Thermal interfaces in dynamic compression experiments." Journal of Applied Physics, vol. 128, no. 1, Jul. 2020. https://doi.org/10.1063/5.0012524
Hartsfield, T. M., La Lone, B. M., Stevens, G. D., Veeser, L. R., & Dolan, D. H. (2020). Thermal interfaces in dynamic compression experiments. Journal of Applied Physics, 128(1). https://doi.org/10.1063/5.0012524
Hartsfield, T. M., La Lone, B. M., Stevens, G. D., et al., "Thermal interfaces in dynamic compression experiments," Journal of Applied Physics 128, no. 1 (2020), https://doi.org/10.1063/5.0012524
@article{osti_1644081,
author = {Hartsfield, T. M. and La Lone, B. M. and Stevens, G. D. and Veeser, L. R. and Dolan, D. H.},
title = {Thermal interfaces in dynamic compression experiments},
annote = {Temperature is a difficult thermodynamic variable to measure in dynamic compression experiments. Optical pyrometry is a general-purpose technique for measuring temperature from a radiant surface, but that surface is often the interface between distinct materials with temperatures that vary spatially along the loading direction. This leads to a fundamental problem: how does the measured interface temperature relate to this temperature profile along the compression axis? Numerical analysis of loading history and thermal diffusion at these interfaces shows that seemingly subtle changes in experiment geometry can lead to very different temperature profiles. We compare these results to laboratory temperature measurements of shock-compressed tin.},
doi = {10.1063/5.0012524},
url = {https://www.osti.gov/biblio/1644081},
journal = {Journal of Applied Physics},
issn = {ISSN 0021-8979},
number = {1},
volume = {128},
place = {United States},
publisher = {American Institute of Physics (AIP)},
year = {2020},
month = {07}}
SHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedingshttps://doi.org/10.1063/1.2263605
SHOCK COMPRESSION OF CONDENSED MATTER - 2011: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedingshttps://doi.org/10.1063/1.3686295