Porous microcracked ceramics represent a unique material class widely used in thermal management, power generation, and filtration applications. These materials have an unusual nonlinear mechanical response that is contrary to the behavior of traditional brittle fracture of other ceramics. The bulk processing affects the grain orientations and porosity. The network of pores and microcracks leads to a heterogeneous structure with unusual mechanical behavior. This work employs microscale uniaxial tension coupled with digital image correlation to investigate anisotropy in the mechanical properties of ceramics used in diesel particulate fuel filters. In probing these bulk mechanical properties this work gains insight into the nonlinear response of microcracks in a porous elastic medium.