Boron carbide is a great armor material owing to its extreme hardness and low density. However, the material fails unexpectedly in ballistic testing due a lack of ductility and a drop in shear strength. The reduction in shear strength has been linked to the formation of amorphous bands in boron carbide, which are observed in the samples impacted beyond certain critical velocities. It is theorized that boron-rich boron carbide could show a reduction in such amorphization. In this study, we aim to observe the onset of amorphization in boron-rich boron carbides and determine the mechanism causing this failure. High pressure measurements will be made using a Diamond Anvil Cell (DAC) and in situ Raman spectroscopy. Stoichiometric boron carbide (B4C) has already been investigated in this manner, but boron carbides with higher boron content have yet to be investigated. Samples to be studied have boron to carbon ratios ranging from 4:1 to 9:1. To investigate the effect of deviatoric stresses on the onset of amorphization, measurements will be recorded using (1) the conventional DAC, both with and without a pressure transmitting medium, and (2) a rotational DAC .