What is it about?
Voids developing in TATB crystals can cause the explosive deterioration. We used X-ray nano-CT to follow the voids developing under compressing, and found the voids with higher surface roughness and irregular structures were easier to break and form new micro voids. These new voids with higher irregular structures were weaker and easier to break into smaller ones as compared to the originals, and leading to the development of voids along these weak zones.
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Why is it important?
Using the X-ray nano-CT, we followed the voids developing in TATB under compressing. The experiment provides new insight into the evolution of voids within TATB crystal with high spatial resolution and excellent imaging contrast. And such technique can be further extended to other systems, such as metal fatigue under dynamic loading.
Perspectives
Doing the experiments promoted me to understand the principles of voids developing more deeply. I hope that other researchers can use X-ray Nano-CT technique for their studies.
liang chen
University of Science and Technology of China
Read the Original
This page is a summary of: In situ observation of void evolution in 1,3,5-triamino-2,4,6-trinitrobenzene under compression by synchrotron radiation X-ray nano-computed tomography, Journal of Synchrotron Radiation, January 2020, International Union of Crystallography,
DOI: 10.1107/s1600577519014309.
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