Shock compression behaviors of boron carbide (B[sub 4]C)

2006 ◽  
Vol 100 (11) ◽  
pp. 113536 ◽  
Author(s):  
Y. Zhang ◽  
T. Mashimo ◽  
Y. Uemura ◽  
M. Uchino ◽  
M. Kodama ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Shock Compression

scholarly journals Structure of boron carbide under laser-based shock-compression at 51 GPa

2020 ◽  
Author(s):  
B. Glam ◽  
S. J. Tracy ◽  
R. F. Smith ◽  
J. K. Wicks ◽  
D. E. Fratanduono ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Shock Compression

scholarly journals Directional amorphization of boron carbide subjected to laser shock compression

2016 ◽  
Vol 113 (43) ◽  
pp. 12088-12093 ◽  
Author(s):  
Shiteng Zhao ◽  
Bimal Kad ◽  
Bruce A. Remington ◽  
Jerry C. LaSalvia ◽  
Christopher E. Wehrenberg ◽  
...  
Keyword(s):  
Solid State ◽  
Boron Carbide ◽  
Shock Compression ◽  
Shear Stresses ◽  
Shear Direction ◽  
Ballistic Performance ◽  
Rate Dependent ◽  
Thermal Energy Conversion ◽  
State Process ◽  
Transmission Electron

Solid-state shock-wave propagation is strongly nonequilibrium in nature and hence rate dependent. Using high-power pulsed-laser-driven shock compression, unprecedented high strain rates can be achieved; here we report the directional amorphization in boron carbide polycrystals. At a shock pressure of 45∼50 GPa, multiple planar faults, slightly deviated from maximum shear direction, occur a few hundred nanometers below the shock surface. High-resolution transmission electron microscopy reveals that these planar faults are precursors of directional amorphization. It is proposed that the shear stresses cause the amorphization and that pressure assists the process by ensuring the integrity of the specimen. Thermal energy conversion calculations including heat transfer suggest that amorphization is a solid-state process. Such a phenomenon has significant effect on the ballistic performance of B4C.

Dynamic X-ray imaging of the penetration of boron carbide

2000 ◽  
Vol 10 (PR9) ◽  
pp. Pr9-583-Pr9-588 ◽  
Author(s):  
W. A. Gooch ◽  
M. S. Burkins ◽  
G. Hauver ◽  
P. Netherwood ◽  
R. Benck
Keyword(s):  
Boron Carbide ◽  
X Ray ◽  
X Ray Imaging
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