Grain rotation and translation contribute substantially to creep of a zirconium diboride silicon carbide composite

Texture analysis from acquired EBSD pole figures confirmed minimal contribution from SiC grain deformation to the tensile bending component, in contrast with a more significant contribution along the compression zone. We find evidence of <5% and <20% SiC grain deformation, contributing to the macroscopic creep strain, for tension and compression bending fibers, respectively. Cavitation accounts for no more than 5% of the macroscopic creep strain, agreeing with our previous estimates and the balance attributed to ZrB2 grain boundary sliding.